purchase & stores division - ISRO

Government of India
Department of Space
MASTER CONTROL FACILITY
HASSAN – 573201 INDIA
PURCHASE & STORES DIVISION
TENDER NOTICE NO.02/08 15.7.2008.
BRIEF TENDER NOTICE
On behalf of the President of India, Purchase & Stores Officer, Master Control
Facility, Department of Space, Government of India, Hassan – 573 201 invites
sealed Tenders(TWO PART) for the supply of following:
Sl.
No
REFERENCE
NUMBER
ITEM DESCRIPTION
QUANTITY
TENDER COST
INCLUSIVE OF
SALES TAX
(NON-
REFUNDABLE)
1 MHDI
2008000524-01
2 MHDI
2006006267-01
SUBSTATION LT PANEL AND
BUSDUCT FOR MCF-HASSAN NEW
LAND.
NOTE: TWO PART TENDER SYSTEM
SUPPLY, INSTALLATION, TESTING &
COMMISSIONING OF 11 KV OUTDOOR
SWITCHING UNITS AND
ACCESSORIES FOR 11/0.433 KV SUB-
STATION AT MCF-HASSAN.
NOTE: TWO PART TENDER SYSTEM
1 NO. Rs.225.00
1 SET Rs.225.00
FOR SUBMISSION OF TENDER : 27 TH AUGUST 2008 AT1600 HRS (IST)
OPENING OF TENDER : 28 TH AUGUST 2008 AT 10.00 HRS (IST)
NOTE:
1. Tender documents are also available on ISRO Web site
www.isro.gov.in. in Tender Notice No.02/08 dtd.15.7.2008
Interested tenders may, at their option, download the tender
documents from website and submit offers along with

prescribed tender cost (in form of Demand Draft) as per details
in the tender notification.
2. Tender fee shall be acceptable only in the form of demand draft
drawn in favour of Accounts Officer, Master Control Facility,
payable at Hassan. No other mode of payment for tender fee is
acceptable.
: 2 :
3. Vendors/firms name and tender number shall be indicated on
the reverse side of the Demand Draft.
4. While requesting for tender documents, please do not
superscribe tender number and due date on the envelop.
Instead indicate “Request for Tender Documents”.
5. Demand Draft should not be dated prior to the date of
advertisement/intimation/website (separate requests and
demand draft shall be sent for each tender document).
6. MCF will not be responsible for non-receipt of tender
documents/offers due to postal/delay/loss in transit.
7. Quotations received without payment of tender fee will be
treated as unsolicited.
8. Detailed specification, terms and conditions are furnished in the
tender documents
10.The offer should be valid for a period of Ninety days from the
date of opening.
11.Quotations received after the due date and time will not be
considered.
12.While submitting your offer, please superscribe tender number
and due date on the envelope, addressed to Purchase & Stores
Officer (P), Master Control Facility, Government of India,
Department of Space, Hassan- 573201.
13.If tender opening date happens to be public holiday tender will
be opened on the next working day.
14.Request for the extension of the due date will not be
considered.
15.Purchase & Stores Officer, MCF reserves the right to accept or
reject any tenders in part or full without assigning any reasons
thereof.
16.Those who do not utilize the website shown at clause 01 above
can buy the Tender documents from Purchase & Stores Officer,

Master Control Facility, Department of Space, Hassan-573 201,
on payment of Non-refundable tender fee as indicated above,
on all working days.
PURCHASE & STORES OFFICER

Instructions
Scope of work
Master Control Facility – Hassan
SUBSTATION LT PANEL & BUSDUCT FOR MCF - HASSAN NEW LAND
General requirements
Make
Calibration
Technical specifications
Design standards
complies to
: The offer shall be submitted in two parts.
-Techno-commercial with Un-priced bid.
-Financial offer as per enclosed format.
: GA drawing of the LT panel to be furnished with super imposed SLD and
busbar configuration or proposed dimension of the panel to be furnished.
: Make for all the items in BOM shall be furnished.
: Deviation if any, to be mentioned clearly w.r.t switchgears, mechanical &
electrical specification.
: Each page of the tender document to be signed with seal.
: 10 years of experience in executing similar panels.
: ISO 9001 certified
: CPRI type test certificate for the 50-kA short circuit test shall be
enclosed for panel and bus-duct.
: The offer will not be considered if the submittals are not as per the
above instructions.
: Design, manufacture, testing, supply, installation & commissioning of the
substation LT panel including bus ducts indoor & outdoor as per the SLD
considering applicable mechanical & electrical safety standards.
: Panel fabrication and integration of switchgears shall be as per the
approved General Assembly drawing.
: Routine test of the panels at works prior to dispatch as per IS.
: Input & output power cables termination is not in the scope of the supplier.
: Integration of LT panel sections & interfacing control cables & accessories
at site & functional testing is in the scope of the supplier.
: Any one make of switchgear among the specified in bill of material only to
be selected and used in the panel.
: Make of switchgear should be same, i.e., make of SDFUs of all ratings
should be same and make of ACBs of all ratings should be same, similarly
for other items.
: Any left out or additional requirements of switchgears, spares and control
accessories shall be included.
: Protective devices, Relays & Current Transformers calibration to be carried
out by NABL accredited party other than manufacturer.
: National Electrical Code (NEC-NFPA 70)
: National Electrical Manufacturers Association (NEMA)
: National Fire Protection Association (NFPA 75) and latest IE rules.
Electrical requirements
Rating
: 2.0 MVA, Bus bar continuous current carrying capacity shall be 120% of
the rated 2.0 MVA at 380 VAC.
Input
: 380 to 440VAC at 50 Hz, 3-phase, four-wire-plus-ground.
Output
: 240 / 415 VAC 3-phase, four-wire-plus-ground, wye configuration.
Operating PF : From 0.5 lead to 0.5 lagging.
Short time rating : Short time withstand current 50 kA RMS for 1 sec.
Semi Modular substation LT panel –Specification 1

Master Control Facility – Hassan
Environmental requirements
: Storage temperature range shall be 0° to + 85°C
: Operating temperature range shall be 0° to 50°C
: Operation shall be reliable in an environment with 0% to 95% noncondensing
RH.
Fabrication
Panel design
: Semi-modular design concept shall be adopted for panel fabrication.
: Free standing, floor mounting and suitable for indoor installation.
: Profile should have holes of standard size punched at standard pitch
throughout the length.
: The L / U / square tubular frame shall be assembled with die casted
corners / tripods or baying clamp for three-dimensional flexibility in design
configuration.
: Mounting plate’s -Mild steel, 2 mm, epoxy polyester powder coated.
: Fixtures for mounting switchgears shall provide flexibility for adjustments in
X, Y & Z-axis.
: The panel shall have easily removable and interchangeable sections.
: Horizontal busbars are to be located at the top of the panel.
: Stainless steel high tensile strength fasteners shall be used for panel.
: Stainless steel fasteners set of high tensile strength (consisting of
hexagonal bolt –1 no, flat washers –2 nos, spring washers –1 no and
hexagonal nut –1 no) shall be provided for each termination point.
: The length of the hexagonal bolt shall be adequate for insertion of 3 lugs of
requisite rating.
: Required service clearances shall be provided to carry out preventive and
remedial maintenance from front and rear side.
: The panel shall be naturally convection-cooled & shall allow continuous
full-load operation, maintaining the temperatures within tolerance level of
components.
: Each bus bar compartment should have a barrier with 1.6 mm thick
galvanized coated & painted with fire resistance paint.
: Proper fixing arrangement shall be made for mounting metering &
protection current transformers.
: The degree of protection for the panel shall be IP 31
Panel dimension
Width
: As per design requirement.
Depth
: Shall not be more than 1200 mm
Height
: Shall not be more than 2400 mm (including plinth)
Plinth
: Shall be 100 / 50 mm height
Ground clearance : Minimum ground clearance for switchgear mounting shall be 350 mm
including plinth.
Weight / Sq. mm : Distributed floor weight shall be less than 1225 kg sq. m.
Switchgears
operation
Plinth
: Switchgears are to be mounted in such a way its handle operation shall
confirm to per IS 4237
-ON Closing –Clockwise i.e., Vertically upward
-OFF Opening –Anti-clockwise i.e., Vertically down ward
: The panel shall be supplied along with base plinth of 100 / 50 –mm height
for each transportable modular section and shall be made of C – channel
forming sectional ‘Box’.
Semi Modular substation LT panel –Specification 2

Master Control Facility – Hassan
Door
Cable
compartment
Bus duct
: Doors shall be with concealed hinges and flush type locks.
: Doors that are bolted for busbar chambers should be flush in design such
that the bolt head and the door surface are in one level.
: Doors shall be of 2 mm thick CRCA sheet.
: High quality door gasket should be used for dust and vermin proof.
: Each bolt shall have plastic washers on the inner side of the door such that
the bolt will remain with the door on removal of the door.
: The switch handle shall be interlocked such that the door of enclosure
cannot be opened unless the switch is in OFF position, however,
mechanical interlock defeat mechanism has to be provided.
: All rear doors shall be of hinged type with locking arrangement at three
places (top, middle and bottom).
: All horizontal and vertical bus bars chamber covers shall be of bolted type.
: Hinged doors shall be provided for all switchgear compartments.
: Stiffeners are to be provided for all rear doors for mechanical strength.
: Cable entry gland plates shall be provided at the bottom.
: Each gland plate shall be chrome plated with 3mm thickness & adequately
supported.
: Independent, detachable gland plates for each cable considering 2 cables /
outlet shall be provided at the cable compartments & terminal chamber.
: Liberal space shall be provided in the cable compartment as well as switch
compartment to facilitate termination of cables.
: Provision shall be made for proper clamping of the cables above the
glands and cable clamps to avoid weight of cables acting directly on the
termination.
: Wide cable alley shall be provided for easy bending and termination of
cables. (Bending radii =R>=12 x overall diameter of cables)
: Non-segregated, bus ducts having 3 phase & neutral bus bars housed in
common galvanized zinc sheet metallic enclosure.
: Degree of protection for the bus duct shall be IP 54, outdoor bus duct
section shall be of double roof type. The top cover should be of rain
canopy type.
: Busbar material –High-purity electrolyte Aluminium confirming to latest
IS standard.
: Bus duct rating shall be 2000A at 415 VAC, 50 Hz.
: Short circuit withstand capacity –50 kA (rms) for 1 sec, Confirming to IEC
IS-8623-2.
: Insulation material –PVC sleeved of suitable class & insulation.
: Neutral bus bar rating shall be 50% of the phase cross section.
: Earth busbar of tinned copper size 35 x 4 mm shall be fitted outside the
duct on either side through out the length.
: Bus duct enclosure shall be fabricated with CRCA electro galvanized,
1.8-mm thick sheet with epoxy polyester powder coating, inner surface to
be painted with flame proof fire retardant paint.
: Transformer terminal to be connected with flexible joints to the palm
connector through bi-metal shim.
: All supporting structure materials shall be of GI (hot dip).
: Standard accessories to be used as per the system requirement like,
expansion joint at every bends, phase cross over, rubber bellow,
marshalling cabinet, adopter at transformer and panel end & wall frame.
: The total requirement of indoor & outdoor bus duct length will be provided
at the time of approval of GA drawing.
Semi Modular substation LT panel –Specification 3

Painting
Surface treatment
Type
External Finish
Internal Finish
Master Control Facility – Hassan
: Triple surface treatment
Phosphating, Electrophoretic dipcoat-priming and Powder coating
: Epoxy polyester powder coated
: Mat or Gloss
: Flame proof Fire retardant paint
Color : Outer surface of the panel –Siemens gray. (color code IS: 952)
: Plinth –Black
: Inner surface of the panel –Fire resistance paint.
: Bus duct – Siemens gray (color code IS: 952)
Busbar System
Material
: High-purity electrolyte Aluminium complying to IS 5082-1981, 63401-WP
Confirming to : DIN 1759, DIN 40 500 and relevant bus bar IS standard
Ele. Conductivity : 100% as per IAC Standard
Main busbar rating : 120 % of 2.0 MVA, continuous current rating
Distribution busbar : 120 % of the switchgear rating connected
N –busbar rating : 50% of the phase busbar rating
Busbar system : TPN-E
Busbar
arrangement
Phase sequence
Normal service
condition
: If the number of busbars per phase exceeds more than three, then
interleaved system shall be adopted. The phase sequence will be N-R1-
Y1-B1-R2-Y2-B2 to minimize skin, proximity, power loss and temperature rise.
: The phase sequence of buabars arrangement shall be N-R-Y-B from rear to front.
: Should not raise 40 0 C above ambient temperature as per IS 4237
(Considering Max ambient air temp. not exceeding 40 0 C at an altitude 992 MSL)
Auxiliary Busbar System
Material
: High-purity electrolyte Aluminium complying to IS 5082 -1981, 63401-WP
Size
: As per design requirement.
Control power : 24 VDC & 230 VAC
Location
: Top front or rear top front chamber of the panel.
Supports / tap-off : Integrated busbar supports and tap-off system shall be adopted.
Safety
: Auxiliary busbars shall be insulated & sleeved.
Bus bars supporting insulators
Material
: Self-extinguishing moulded Fiberglass reinforced thermosetting plastic or
equivalent.
Properties : Higher mechanical strength, High dielectric strength
: High temperature with stand capability, Non flammable
: Non hygroscopic & Ribbed construction to prevent tracking
Supporting : Individual supports for each phase shall be used to eliminate risk of
tracking between phases.
Busbars protection
Separate chamber : Horizontal and vertical busbar should be enclosed in a separate chamber.
Sleeving
: Horizontal busbars, vertical busbars, switchgear input busbars and
switchgears output busbar are to be totally sleeved with color coded heat
shrunk PVC to protect against accidental contact and tracking caused by
dust, humidity and vermin.
Semi Modular substation LT panel –Specification 4

Shrouds
Cabling
Separate chamber
Safety interlock
Doors
Wiring
Specification
Confirming to : IS: 694 / 1990
Size & Rating
Connectors
Cage clamps
Ferruling
Meters & Relays
Communication
devices
Master Control Facility – Hassan
: All joints on horizontal busbars shall be provided with shrouds or insulated
to provide a completely insulated system.
: The cabling chamber for the panel shall be at the rear side of the panel.
: It should be separated from the busbar zone and switchgear compartment.
: The control cables and terminals are to be mounted in a separate
compartment. (Below ACB compartment / away from power cables).
: The door cannot be opened unless the breaker is in ‘Isolated position’.
: The door cannot be opened unless MCCB / SDFU is in OFF position.
: Defeat facility shall be provided to facilitate testing / inspection for all
switchgears.
: HFFR unilay, pre twisted single core multi strand electrolyte grade,
annealed copper cable,
: 1.5 sq-mm, 1.1 Kv grade shall be used for all control / interlock wiring.
: 2.5 sq-mm, 1.1 Kv grade shall be used for all CT related wiring.
: Power cable of suitable size for SDFUs / MCBs of rating up to 63 A.
: Color of the cable shall be Gray for control wiring.
: Mating type male-female connectors and holders shall be used between
each transportable section for control wiring.
: Din rail mounting, cage clamp terminal connectors shall be used for all
control and power wiring up to 63A.
: Standard ferruling concept shall be followed for clear identification of
control circuit wiring as per IS 375 mentioned below.
-Letter ‘A’ – CT for primary protection excluding O/C
-Letter ‘B’ –CT for busbar protection
-Letter ‘C’ –CT for O/C including E/F & instantaneous
-Letter ‘D’ –CT for metering & voltage control.
-Letter ‘E’ –Reference voltage for instrument metering & protection
-Letter ‘F’ – Reference voltage for voltage control
-Letter ‘G’ – Reference voltage for synchronizing
-Letter ‘H’ –AC & AC/DC supplies Numbers –1 to 69 for S’gears & Gen.
-Letter ‘J’ – DC supply
-70 to 99 for Transformers
-Letter ‘K’ – Closing & tripping control circuit – Any no. 1 upward
-Letter ‘L’ – Alarm & indication – Any no. 1 upward
-Letter ‘M’ – Auxiliary & motor control devices –1 to 19 for Switchgears, 20
to 69 for Generators & 70 to 99 for Transformers
-Numbers 10 to 29 – R phase
-Numbers 30 to 49 – Y phase
-Numbers 50 to 69 – B phase
-Numbers 70 to 89 – Residual & Neutral CT &
-Numbers 90 –Earth wire directly connected to earth bar.
: For DC bus -Positive –Red, -Negative –Blue
: Auxiliary power supply shall be taken independently through MCBs from
auxiliary busbars.
: Communication points of all communicable devices (viz., ACB releases,
digital TVM & protective relays) shall be wired with twisted pair cable to
the common compartment.
Semi Modular substation LT panel –Specification 5

Trip circuit
Indicating lamps
CTs wiring
MCBs input power
Master Control Facility – Hassan
: ACBs / MCCBs shunt trip power supply shall be taken independently
through MCBs from auxiliary busbars.
: Wiring for presence of input power, ACBs / MCCBs ON / OFF and fault trip
status indication.
: Isolators for digital TVM & shorting links for analog meters shall be used.
: Multiple MCB’s input power supply should be tapped through 125A SDFU
for short circuit protection.
Name plates / stickers
Name plate : Nameplates for Transformers & Generators incomers and each outgoing
feeder outlets shall be provided.
: Each nameplate shall contain feeder no, switchgear rating and
nomenclature.
: Nameplates size, design, and color combination and nomenclature for
each output feeder will be furnished during approval of drawing.
: The approved SLD of the panel shall be screen-printed / computerized
print over an A3 size 2 mm thick aluminum sheet or foam board. It shall be
fixed at top-center of the panel.
Laminated stickers : Laminated stickers of suitable size with good quality adhesive shall be
fixed at each terminal blocks, meters, relays on the inner side for clear
Panel specification
plate
Grounding / Earthing
Type
Panel earth bus
Switchgear
Panel doors
Meters / relays
Inspection / Testing
First stage
inspection
Final inspection &
testing
identification.
: The panel shall have the specification plate as per the IS reference
standard 2675
-Rated voltage AC or DC Hz
-Total number of outgoing ways / feeders
-Rated current of each outgoing feeders
-Number of poles
-Manufacturer name / Trade mark / Address
-Customer PO reference and date
-Year of manufacturing
: Two-point ground in accordance with the recommendations of IEEE
Standard and the requirements of the NEC.
: High-purity electrolyte copper E-Cu 57 busbar of size 50x6 mm should be
run all along the width of the panel at front or rear bottom surface.
: All ACBs and switchgears body shall be earthed by 25x3 mm copper strip.
: Doors shall be earthed, if electrical equipment (meters / relays / lamps)
mounted by a yellow green 2.5 Sq. mm wire lugged at both ends.
: All meters / relays shall be earthed to the profile by a yellow green 2.5 Sq.
mm wire lugged at both ends.
: Mechanical -structural fabrication after approval of GA drawing.
: Verification of components as per PO bill of material.
: Minor modifications in mechanical / electrical changes pointed out by MCF
inspecting officer shall be carried out, if necessary, without additional cost.
: After integration of switchgears and wiring.
: Inspection and testing as per checklist.
: Calibrated testing & measuring instruments are to be used for routine test.
: Any deviations from the specifications or in testing shall be attended &
offered for re-inspection.
Semi Modular substation LT panel –Specification 6

Documentation
Comprising
Warranty
Master Control Facility – Hassan
: Party to submit the PDR document for approval with in 45 days after
receiving the purchase order.
: PDR document shall contain –SLD, GA drawing with superimposed busbar
configuration, Structural details of panel / bus duct, Make and Catalogue
number of switchgears & accessories, Control circuit drawing and Delivery
schedule.
: As built GA, SLD, Control drawing & busbar layout configuration in A3 size.
: Meters / Protective Relays operating manuals.
: Meters / protective Relays test and Calibration certificates.
: Metering / Protection CT calibration certificates
: Bill of actual material used with make, cat no and quantity.
: Routine / Acceptance test results as per standard.
: Specific instructions for installation and operation / maintenance
procedures.
: Document shall be supplied in duplicate with hardbound cover having
printed title.
: The entire document is to be copied & supplied in CD.
: Against defects in material and workmanship
: 12 months from the date of commissioning or
: 18 months from the date of supply and acceptance which ever is earlier.
Functional requirements
Inter lock
: Electrical & Mechanical interlock between T1 & T2 shall be provided.
: The bus couplers BC1 & BC2 shall not close if there is power on either
side of the bus.
: The bus couplers BC3 & BC4 shall close if the DG systems are running in
synchronizing mode.
: The bus couplers BC3 & BC4 shall not close if the DG systems are
running in solo mode of operation.
: The differential trip potential free contact shall be made available to trip the
diesel engine also.
: The detailed interlock / operational scheme in auto / manual mode of
operation will be provided during PDR
ACBs
: Shall be received from the manufacturer with all its accessories in pre
wired condition as per the bill of material.
: Incoming & outgoing busbar termination orientation should be ordered as
per the panel requirement.
Bus coupler (BC2)
Interposing relays
Auxiliary contacts
: Bus coupler BC2 section shall be kept with a gap of 750 mm on either side
to have separation from utility & captive sources.
: Control power supply to interposing relays (24 VDC) shall be taken through
modular fuse holder with HRC fuse links.
: Transformer and Generator side change over contacts wiring shall be
terminated separately in mains and generator side compartments.
: Change over contacts, aux. contacts wiring of Transformers, Generators &
Bus couplers shall be terminated to separate terminal blocks with TB no
for clear identification.
: Each terminal connector to be numbered and their input & output details to
be provided.
: All auxiliary contacts of ACBs, Relays, MCCBs and CT outputs shall be
brought to cage clamps / mating type male-female connectors.
Semi Modular substation LT panel –Specification 7

Master Control Facility – Hassan
Phase sequence
indicator
DG auxiliary
system
Emergency Power
OFF (EPO)
Modes of
operation
Neutral contactor
: PSI shall be provided with spring return type ON / OFF selector switch.
: All DG auxiliary motor control circuits are to be placed under respective
DG incoming air circuit breaker compartments.
: EPO switch shall shut down the unit by activating the shunt trip of the
ACBs in local & remote operation.
: Manual operation
: Solo operation and
: Automatic operation
: Solo mode operation
− DG neutral Contactor to close automatically before closing of respective
DG breaker.
− Neutral Contactor to trip after tripping of respective DG’s.
− Selector switch for enabling / disabling the neutral contactor shall be
provided.
: Parallel operation
-Only master DG neutral contactor should be ON.
-Master DG neutral tripping shall trip all DG circuit breakers.
Semi Modular substation LT panel –Specification 8

Master Control Facility – Hassan
Sn Description Make Qty
A Switchgears & Control accessories
1
Air Circuit Breakers -ACB
Rated operational voltage -415V 50Hz AC, 3 Pole, Electrical Draw Out type,
Type of closing: Stored energy (Motor operated), Motor voltage: 240 VAC,
Closing electromagnet: 240 VAC, Wiring scheme: 3Ph, 4 wire, Auto reset,
Door interlock, Castle lock with key, Rated insulation voltage: 690 VAC,
Utilization category -B. Ultimate breaking capacity (Icu) at 415V, 50Hz –65
kA rms, Service breaking capacity (Ics) at 415V, 50Hz -65 kA, Short time
withstand capacity (Icw) for 1 second: 65 kA rms, Making capacity (Icm) at
415V, 50Hz -143 kA peak,
Microcontroller based, true RMS sensing protection and control release
capable of offering OL, SC and EF protection with variable current and time
delay settings, selectable I 2 t based curves for short time and earth fault
zones, self powered with % loading / LCD display. Confirming to IS 13947
(Part 2) / IEC 60947-2
Accessories: Auxiliary contacts: 6NO+6NC / 4 NO+4NC, Safety shutters /
Inter phase barriers, Shunt release: 24 VDC, UV release: 240 VAC,
Operation counter, Mechanical interlock kit, Terminal orientation / adopters -
As per
requirement.
Make: L&T U-Power / Schneider MG-Masterpact / Siemens, Sentron-WL
1a Rated Current: 800 A for Generator 3
1b Rated Current: 1600 A for Transformer 2
2
Air Circuit Breakers -ACB (For bus couplers BC1 to BC4)
Rated operational voltage -415V 50Hz AC, 3 Poles, Electrical Draw Out type,
Type of closing: Stored energy type (Motor operated), Motor voltage: 240 VAC,
Closing electromagnet: 240 VAC, Wiring scheme: 3Ph, 4 wire, Auto reset, Door
interlock, Castle lock with key, Rated insulation voltage: 690 VAC, Utilization
category -B
Ultimate breaking capacity (Icu) at 415V, 50Hz –65 kA rms, Service breaking
capacity (Ics) at 415V, 50Hz -65 kA, Short time withstand capacity (Icw) for 1
second: 65 kA rms, Making capacity (Icm) at 415V, 50Hz -143 kA peak.
Confirming to IS 13947 (Part 2) / IEC 60947-2.
Accessories: Auxiliary contacts: 4NO+4NC, Safety shutters / Inter phase barriers,
Shunt release: 24 VDC, UV release: 240 VAC, Operation counter, Terminal
orientation / adopters: As per requirement
Make: Make: L&T U-Power / Schneider MG-Masterpact / Siemens, Sentron-WL
2a Rated Current: 1600 A 2
2b Rated Current: 2500 A 1
2c Rated Current: 3200 A 1
Semi Modular substation LT panel –Specification 9

Master Control Facility – Hassan
3
Microcontroller based UV & OV Relays (For T1 & T2)
Voltage Vn -110/240/415V settable at site, 50 Hz +/- 2.5 Hz, Auxiliary power
supply: 24-110V AC/DC, Settings -Fault Voltage Vs -OV mode: 105-180% of
Vn in steps of 5%, UV mode: 95-20% of Vn in steps of 5%, High Set Vhs -OV
mode 110-180% of Vn in steps of 10%, -UV mode: 90-20% of Vn in steps of
10%, Trip Time Characteristics -Normal Inverse NI -3.5 Sec in OV mode &
5.7 in UV mode, Defnite Time -01, 10 and 100 Secs, Accuracy -+/- 5% of Vn,
Auxiliary Contacts - 2 Pairs of self reset C/O contacts, Mounting -Panel
mounting (Flush) type, Relay operation should not be affected by stray
magnetic field. Make: L&T Model MV12A or equivalent in Siemens / Areva
T&D / ASEA Brown Boveri
4
4
Protection Relay (For T1 & T2)
3Ph OC+EF+highset, Communication and breaker control with RS 485, Micro
Controller based, LS OC (20-200% step 5%) HS O/C (0.2-40) in step of 0.2 In
or disable & LS EF (5-80% step 5%), HS EF (0.1 to 20) on step of 0.1 On or
disable, HS delay (0.1 to 2 Sec) step 0.01 sec or instantaneous, Draw out
type, Auto doubling of HS, relay co-ordination, self testing & display of
parameters, Site selectable trip time characteristics (NI, VI, EI & Definite
Time), TMS 0.1-1.6 step 0.05, Auxiliary contacts 2NO+2NC, Auxiliary supply:
24-110V AC/DC, CT Rating: 5A. Make: L&T Model MC61C or equivalent in
Siemens / Areva T&D / ASEA Brown Boveri
2
5
Digital Meter (For T1, T2, G1, G2 & G3)
True RMS measuring meter to read L-L/L-N voltage, Current per phase /
neutral current, Frequency, Phase rotation / Vmax. and current demand per
phase, Vmin. per phase, %age of load circular bar graph. Capable of
measuring power parameters viz., kW & kWh, kVA & kVAh, kVAr & kVARh,
import & export etc., The meter shall be capable of reading the voltage as
well as current (THD) Harmonic, Three phase at once, bright LED display.
Communication port –RS 485 and Industrial standard communication
protocol – MODBUS, Auxiliary power supply: 24 VDC. Make: Satec
PM130EH
5
6
7
Differential Protection Relay (For G1, G2 & G3)
Device code: 87, 50/51, 50LBB, 64S / 87N, Design: Numeric, Functions:
Generator differential, bias % with dual adjustable slope, OC, stator EF & CB
failure protection, Features: 1A or 5A site selectable, display of parameters,
waveform capture feature, built in supervision & RS485 port, 4 C/O, S/R or
H/R or time delay 1 C/O for self supervision, Flush mounting draw out type,
Auxiliary supply 24-110V AC/DC. Make: L&T Model MD32G or equivalent in
Siemens / Areva T&D / ASEA Brown Boveri
Switch Disconnector Fuse Units (SDFU)
Triple Pole with isolable Neutral (TPN), 415V, 50 Hz, Panel mounting type
interrior version with operating mechanism and handle without HRC fuse
links. Confirming to IS 13947 (Part 3), Accessories: Terminal shrouds, Fuse
shrouds, Fuse barriers
Make: L&T F-Line FNX series / Schneider MG Fupact SDF / Siemens -
Sentron Superswitch
3
7a Rating: 630 Amps 15
Semi Modular substation LT panel –Specification 10

Master Control Facility – Hassan
7b Rating: 400 Amps 5
7c Rating: 250 Amps 6
8
DIN TYPE HRC Fuse Links (For 7a, 7b & 7c)
Rated Voltage: 415V, 50 Hz, DIN fuse Type -HN, Confirming to IS 13703,
Low let through energy, High breaking Capacity of 100 kA at 415V with blown
indication. Make shall be of SDFU selected or recommended by the SDFU
manufacturer.
8a Suitable for 630A SDFU, Rating: 500A 45
8b Suitable for 400A SDFU, Rating: 315A 15
8c Suitable for 250A SDFU, Rating: 200A 18
9
Ammeter (For all outgoing feeders)
Type: Moving Iron, AC application, Size: 96x96, Flush mounting, Uniform
scale division, Accuracy class 1%, CT operated 5A. Make: L&T Rishab / AE /
MECO / Nippon / Havells
9a Range: 0 - 600 A 15
9b Range: 0 - 400 A 5
9c Range: 0 - 250 A 6
10
Ammeter Selector switches (For LT panel)
Cam operated, No of poles: 1 pole with 3 CT with OFF, Current rating -10 A,
Operating angle -90 0 , panel mounting type, R-Y-B-OFF and AMMETER
engraved front plate, Front plate size -60 mm, 4 hole front panel mounting.
Make: L&T-Salzer / Kaycee / Schneider / Siemens
26
11
Phase Sequence Indicator (For T1 & T2)
Rotating disc type electro mechanical, Operating voltage: 50-500V, Operating
frequency: 25-60 Hz, Size: 96x96 mm, Flush mounting. Make: L&T Rishab /
AE / MECO / Nippon / Havells
2
12
Current Transformers -Metering
Rated secondary current -5A, Accuracy class -1%, Rated frequency -50Hz,
Type - Resin cast, Shape -Circular / Rectangular with mounting accessories,
Rated insulation level of CT -3 kV rms, Confirming to IS 2705. Make: L&T /
Rishab / Schneider / Kappa / Kalpa / AE
12a Rated primary current 1600 A, Rated burden -5 VA (For T1 & T2) 6
12b Rated primary current 800 A, Rated burden -5 VA (For G1 & G2) 9
12c Rated primary current 600 A, Rated burden -5 VA 45
12d Rated primary current 400 A, Rated burden -5 VA 15
12e Rated primary current 250 A, Rated burden -5 VA 18
13
Current Transformer -Protection (for T1 & T2)
Rated primary current 1600A, Rated secondary current -5A, Rated burden -
10VA, Accuracy -5P10, Rated frequency -50Hz, Type -Resin cast, Circular /
Rectangular with fixing accessories, Rated insulation level of CT -3 kV rms,
Confirming to IS 2705. Make: L&T / Rishab / Schneider / Kappa / Kalpa / AE
6
14
Miniature Circuit Breakers (For AC control circuits)
Single pole, Rating 4A, Breaking capacity 10A, confirming to IS 8828 -1996,
Type 'B' tripping characteristic. Make: L&T -Hager / Siemens / Schneider /
MDS -Legrand / GE having ISI mark
As
required
Semi Modular substation LT panel –Specification 11

Master Control Facility – Hassan
15
16
17
18
19
20
Ultra Safe Modular Fuse Holders (For DC control circuits)
Single pole, Suitable for 14x51 cylindrical HRC fuse links, Din rail mounting
type, Confirming to IEC 269-2-1, 'Finger safe' under IEC standards to an IP-2
grade of protection, Blown fuse indicators for each pole. Make; Siemens /
Schneider / Ferraz-Shamutt / Telemecanique
HRC Fuse Links (For DC control circuit)
Rating: 4A, Nominal Voltage: 415VAC, Breaking capacity: 80kA at 415VAC,
P.F. of 0.15, Confirming to IS: 9224 1979. Cylindrical type of size 14 x 51
mm. Make: Siemens / Schneider / Ferraz-Shamutt / Telemecanique
CT Shorting isolator (for T1, T2, G1, G2 & G3 -Satec meter)
Triple pole isolator, Rating: 16A. Make: L&T -Hager / Siemens / Schneider /
MDS -Legrand / GE / ABB
CT Shorting Terminals (for LT panel outgoing feeders)
Terminal connector, 800 VAC grade, Suitable for termination of cable from
0.08 to 4 sq mm, Rating -32A, Colour -Grey, Din rail mounting type, Material
-modified Nylon 6.6 free of halogens, flurocarbons etc., Continuous operating
temperature -105 degree C, Electrolytic copper Ecu. Make: WAGO or
equivalent in Connectwell / Salzer
Change Over, ON / OFF, Auto / Manual Switch
(For Neutral contactor, PSI) Rating: 10A, Switching angle 90 degree, Flush
mounting type, Rated operational voltage -440VAC, Frame size -48 mm.
Make: L&T-Salzer / Kaycee / Siemens / Schneider
Breaker Control Switch (TNC)
Frame size - 88 mm, Lever handle, shall be lockable in neutral position, Front
mounting with grey colour, handle black colour, Engraved 'Trip', Neutral' &
'Close', IP 40 protection. Make: L&T-Salzer / Kaycee / Siemens / Schneider
25
25
5
As
required
As
required
9
21
22
23
24
Power Contactor (For G1, G2 & G3 Neutral)
Utilization category AC-3 at 415 V, 50 Hz, 3 Ph, Auxiliary contact 2NO+2NC, Coil
voltage: 240 VAC, Confirming to IS13947 (Part 4 / Sec.1) and IEC 60947-4-1,
Rating: 400A, Rated insulation voltage: 690V AC. Make: L&T / Schneider -TM /
Siemens / ABB
Emergency Push button
The local EPO shall include a non-illuminated "Emergency Power Off"
pushbutton. Pressing the EPO switch shall immediately shut down the unit by
activating the shunt trip of the all main input and bus coupler circuit breakers.
Make: L&T-ESBEE / Siemens / Schneider / ABB / Tecnic
Flasher with beeper / Indicator banks (For T1, T2, G1 to G3)
Amber colour flasher cum beeper for fault trip indication & alarm with
acknowledgement. Make: MIMIC / Schneider / Rittal
Indicating Lamps
(For T1, T2, G1, G2, G3 RYB indicatios, ACBs ON/OFF indications, Fault trip
indications) Type: LED, Ribbed lens with trim collar anodised bright, Flush
head, Input supply voltage 250VAC, 50 Hz. Color cade should be Red,
Yellow, Blue & Green. Make: L&T-ESBEE / Siemens / Vaishnav / Tecnic /
Schneider / ABB
3
1
5
As
required
Semi Modular substation LT panel –Specification 12

Master Control Facility – Hassan
25
26
Actuators (Illuminated)
Type: LED, Ribbed lens with trim collar anodised bright, Colour code shall be
Red & Green. Make: L&T-ESBEE / Siemens / Vaishnav / Tecnic / Schneider /
ABB / GE Power Controls
High speed relay (Master), (For T1, T2, G1 to G3)
Auxiliary supply: 24 to 48 V DC, Type: VAJ, Model: VAJH-13YF-52B of
Alstom or L&T / Siemens / Areva T&D / Brown Boveri
As
required
5
27
Industrial plug in relays (T1, T2 & DG1 to DG3 -3 Nos each, BC1 to BC4 -2
Nos each & NC1 to NC3 -1 No each)
3 C/O contacts, 11 pin, circular pin arrangement, Continuous duty, Silver
cadmium alloy Contacts, Contact rating 5A continuous @ 24 VDC, Contact min.
power rating 1000 VA, Relay assembly shall be completely sealed in transparent
enclosure, Led indication across coil while on relay pick up, Arc barriers shall be
provided between the pole contacts, Mechanical test to push button shall be
provided, Mechanical flag indication on relay status, Din rail mounted plug in
socket for 11 pin relay. Make: PLA / Paramount / OEN / BCH / Siemens / ABB
26
28
29
30
31
32
Control Cable (For control circuit wiring)
HFFR, pre twisted single core multi strand electrolytic grade, annealed
copper cable, Size: 1.0 sq. mm & 2.5 Sq. mm. Voltage grade: 1100VAC as
per IS: 694 / 1990. Make: RR Kabel / Lapp / Finolex / L&T / V-Guard /
Mysocables
Power Cable
HFFR, Pre twisted single core multi strand electrolytic grade, annealed
copper cable, Voltage grade: 1100 VAC, as per IS: 694 / 1990, Size & colour
of the cable should be selected according to the MCB / Switch-gear rating &
standard Grey colour, to be crimped with coloured sleeve lugs heavy duty,
Ring tonge type. Make: RR Kabel / Lapp / Finolex / L&T / V-Guard /
Mysocables
Din Rail
Mounting Rails: C-channel shaped STD 32 mm, steel zinc passivated / plated
Length: as required. Make: Connectwell / Rittal / Wago
Terminal Connectors (For control circuit wiring)
CAGE CLAMP Terminal connector, 800VAC grade, Suitable for termination
of cable from 0.08 to 4 sq mm, Rating -32A, Colour -Grey, Din rail mounting
type, Front Entry, Material -modified Nylon 6.6 free of halogens, flurocarbons
etc., Continuous operating temperature -105 degree C. Make: WAGO
Controls AWG28-12 cat no. 281-901or equivalent in Finolex / Connectwell /
Elmex
Terminal Connectors (For SDFU 63/32A, MCBs 63 to 10A)
CAGE CLAMP Terminal connector, 800VAC grade, Suitable for termination
of cable from 6-35 sq mm, Rating -125A, Colour - Grey, Including end plate,
Din rail mounting type, Front Entry, Material -modified Nylon 6.6 free of
halogens, flurocarbons etc., Continuous operating temperature -105 degree
C. Make: WAGO controls AWG 8 - 2 Cat no. 285-601 or equivalent in Finolex
/ Connectwell / Elmex
As
required
As
required
As
required
As
required
As
required
Semi Modular substation LT panel –Specification 13

Master Control Facility – Hassan
33
34
35
36
37
Cable Ducts
Manufactured from high impact rigid PVC, should not peel, chip or break, non
inflammable, warp proof, non-britle, high di-electric strength (36 kV / mm),
Temperature withstand capacity up to 70 degree C, Colour: Grey, Type B
locking, width & deapth of the duct shall be selected according to the
requirement and shall be uniform in size. Make: Salzer / Connectwell / Wago
/ Elmex / Lapp
Cable Ties
Re-usable type, white coloured, Nylon cable ties, Length of the ties selected
according to the requirement. Make: Any Reputed make
Ferrules / Stickers
Ferrules of suitable type, size shall be selected for each cable on both sides
and for terminal blocks. Laminated stickers for marking Circuit breakers /
SDFUs / Fuse links / Terminal blocks shall fixed as per the standard
configuration
Lugs
Suitable insulated coloured heavy duty lugs made of tinned copper shall be
used for control cable / SDFU upto 63A / MCB input output cable terminations
as per the cable size. Make: Dowells/Multi/3D/Jainson
High purity electrolyte Aluminium Busbars
Rating: 2.0 MVA for main busbar, Aluminium bus bar complying to IS 5082
1981, 63401-WP, suitable size and rating for vertical busbar system, suitabl
size Busbar shall be selected for tapping from buabar to switchgears &
switchgear to termination ends, The busbar thickness shall not be more than
8 mm
As
required
As
required
As
required
As
required
MS items, Fabrication, Insulators, Painting, Wiring and Testing as per the
38
enclosed technical specification enclosed.
39 Sub-Total A
B LV Busduct Indoor / Outdoor System
40
LV Busduct System
Non-segregated, bus ducts having 3 phase & neutral busbars housed in a
common Galvanized zinc sheet metallic enclosure. Degree of protection -
IP54, Outdoor from Transformer (1MVA) to inside the building & Indoor from
building to LT panel. Rating 415V, 2000A , Busbar material -Aluminium,
complying to IS 5082 1981, 63401-WP. Short circuit withstand capacity -50
kA (rms) for 1 sec, Confirming to IEC 439-2, IS-8623-2, Insulation material -
Multi layer class F (155 degree) insulation, Earth busbar -Upto 50 % of
phase cross section can be fitted outside, Enclosure material -1.6 mm CRCA
with epoxy polyester powder coating, Standard accessories to be used as per
the system requirement like, bends, expansion joints, flexible link, phase
cross over, rubber bellow, marshalling cabinet, adopter at transformer and
panel end & wall frame. The exact length of indoor, outdoor bus duct may be
taken at site during panel fabrication.
40a Indoor (15 meters approximately)
40b Outdoor (20 meters approximately)
R Meter
R Meter
Semi Modular substation LT panel –Specification 14

Master Control Facility – Hassan
41 Sub-Total B
C Installation & Commissioning of Substation LT Panel & bus-duct
42
Installation & Commissioning of LV bus-duct at site including steel supports &
Installation & Commissioning of substation LT panel at site excluding power
cable termination.
Sub-
Total C
LS
D
Basic cost for the Substation LT panel and LT Bus duct
Semi Modular substation LT panel –Specification 15

Master Control Facility. Hassan 573201
Technical Specification For
Supply, Installation, Testing &
Commissioning of
11KV Outdoor switching Units
for
11 / 0.433 kV Sub-station
At
MCF- HASSAN
Contents
Technical specifications & BOM – Page 1 to 20
HT SLD Drg. – Page 21
Earthing Drg. Page 22 & 23

GENERAL INSTRUCTIONS
1. PRE QUALIFICATION
a. The installer shall have minimum of 10years experience for the installation of MV
& HV Sub-station equipment's.
b. The party shall have executed similar nature of work (preferably 2003 onwards)
of not less than Rupees Fifty lakh.
c. The bidder should have highly experienced & qualified Supervisor for similar
work.
1.1 Following Pre qualification document to be enclosed.
d. List of major contracts executed with latest work order copy & completion
certificate. document.
e. Companies Profile.
f. The bidder shall have necessary class of license to install and commission HT
equipment's as per I.E. rules, State and Central Electricity Authority approval.
g. Appropriate class of license including Supervisor license.
h. Annual turnover & IT return.
2. OFFER IN TWO PARTS
2.1 Part one: Techno- Commercial.
The Techno-Commercial offer shall contain all the technical compliance statement
including details/data/information asked in our documents. Literature, original
Catalogues/documents supporting the compliance, bidder’s Commercial terms and
conditions to be furnished. The offer shall be restricted to the brands/make mentioned
in the tender. The part one should consist of all the technical details without cost
details. All the information/data/details asked should be furnished in the part one. No
cost details shall be included in this bid.
2.2 Part two: Financial bid
This should contain parties’ best competitive price offer to us.
Tax details must be mentioned clearly. The cost of the item shall be furnished in the
Financial bid only as per the bill of material format enclosed.
Bidders may contact MCF for clarifications if any before submitting their offer.
Clause-by-Clause technical Specification compliance for our specification
document should be furnished along with the bill of material. Deviations, if any,
shall be indicated in the offer. Better features other than specified shall be
highlighted. Party may indicate items which are essential to complete the overall
requirement.
Spares and optional items shall be indicated. (Separate price shall be mentioned in
price bid).
3. SPARES AND TOOLS
The bidder has to specify the list of recommended spare for the substation for a
period of 3 years, to be procured by us and indicate the unit rate and the details of the
local dealer whom we should contact for the procurement for maintenance after the
Page 1 of 23

guarantee period. All tools and operational spares for day – today operation of the
switchgear should be included in the scope of this offer.
4. WARRANTY
System supplied shall be covered under a warranty period of not less than TWO
years from the date of receipt of the material at our site.
5. SAFETY
All equipment and material shall be designed manufactured and tested in accordance
with the latest applicable Indian Standard, IEC standard.
The electrical installation shall met the requirement of Indian Electrically Rules as
amended up to date relevant IS code of practices and Indian electricity act. In addition
other rules of regulations applicable to the work shall be followed. It shall be the
responsibility of the contractor to comply with all the safety norms and fulfill all the
relevant acts. MCF will not be responsible for any untoward accidents for the party’s
working personnel.
6. WORK INSTRUCTIONS
The qualified technicians shall do the installation works.
Only the qualified electricians shall do the other Electrical works.
The party shall bring all the necessary tools and instruments required for erection,
installation, commissioning and testing.
For all electrical works such as crimping, terminal connections, tinning… etc right
size and proper tools shall be used.
7. WORK SCHEDULE
Preliminary design review (PDR)
PDR document shall be submitted to MCF with in 15 days of receipt of purchase
order
Submission of PDR after release of PO:
Review and clearance of PDR:
Delivery of materials at site from the date of site clearance:
Erection / Installation:
Testing & Commissioning and acceptance:
Submission of all documentation:
15 Days
10 Days
45 Days
60 Days
30 Days
15 Days
8. DOCUMENTATION
a. Three sets of Operation & Maintenance instruction manual.
b. Three sets of Service manual with detailed power and control wiring diagram,
circuit diagram.
c. Three sets of original Spare parts catalogue with part numbers
d. List of recommended spares.
e. Three sets in original Handing over document & as- build drawings in Auto CAD
with soft copy in CDs
Page 2 of 23

9. TRAINING
The bidder shall arrange free of cost training at site for operating & maintenance
personnel with proper documentation.
10. INSPECTION & TESTING
VCBs, LBS and isolators with enclosures will be inspected at works before despatch
THE FOLLOWINGS ARE NOT IN THE SCOPE OF THIS
TENDER.
a. Supply of Distribution Transformer, HT Regulator, HT Cable laying and
terminations
b. Civil works
c. Inspection fee for CEA & State electrical Inspectorate or to any other
agencies.
NOTE
1. Party shall give clear compliance confirmation for all the Technical
specifications at pages 1 to 23
2. Detailed Technical catalogues to be enclosed
Page 3 of 23

TECHNICAL SPECIFICATION FOR 11 kV OUT DOOR SWITCHING UNITS -
(RING MAIN UNIT) RMU
1. SCOPE
The scope of the work includes Supply, Installation, Integration, Testing and
Commissioning of 11 KV compact substation switching units with Remote
monitoring facilities at site with all safety accessories, tools and tackles. The Outdoor
switching yard / Sub-station shall be installed and tested as per IEC 60 – 1330
and shall be confirmed for internal arc test wherever applicable. Operating methods
of Pre-fabricated Load break switch and VCBs which are cable & Bus-bar connected
to be operated from outdoor & indoor / local or remote for alternating current of
primary rated voltage 11kV and for a transformer of maximum power 2 x 1000 kVA
for services frequencies. The Pre-Fabricated LBS RMU cubicles to be situated
outdoor at ground level on a raised platform at Free State condition.
1.1 SPECIAL NOTE:
a. The required substation shall meet the power flow diagram as per enclosed
schematic Drg. No MCF/OL/HT-SLD/2007
b. The scope includes supply of 11 KV Ring Main Unit with VCBs, LBS,
including CTs & PTs, Lightning Arrestors, Control battery, control Panels
protective devices and its inter face to Industrial PCs / SCADA / remote
monitoring system
c. Both incoming, LBSs and VCBs outgoing termination should be suitable for
cable connection with Single / dual run of 3 CORE, 150 / 120 SQ.mm XLPE,
armoured 11KV power cable.
d. There should be explicit provisions of terminals for connecting earth leads.
e. An integrated remote monitoring and control unit with each switchgears should
have facility to interfaced with SCADA / SNMP or RS 485 interface and
necessary software to run under windows operating system (OS) shall be
supplied for M&C.
f. Offer may be made separately for total SCADA system and SNMP or RS 485
interface to PC with necessary software for remote monitoring / control
g. Local metering and indication / Remote Manual operation and monitoring Panel
for the functional and operational status of the switchgear.
h. The details of approvals received from Electricity boards, CPRI, Central and
local inspectorates etc also should be enclosed with the offer.
i. Party should have variable Current injection kit at site for Testing of relays &
other tripping devices. The instrument should be calibrated & certified by Govt.
Approved agency. It shall be the responsibility of the party to test and
demonstrate the safety tripping parameters during CEA & Electrical
Inspectorate. The necessary fees towards CEA & Electrical Inspectorate
inspection will be born by the Dept.
j. Manual over-ride for all Auto system to be provided.
k. Bidder may ask for technical clarification if required. The party has to
provide a point-by-point confirmation of the technical features with
catelogues, specifications and bill of materials provided in the tender. If this
Page 4 of 23

is not furnished, the tender is liable to be rejected without further
communications.
l. Any deviations / improved technical features of the product should be clearly
brought out in the offer.
2. SYSTEM DETAILS:
Refer schematic drawing enclosed for incoming Feeders detail and system
configuration. schematic Drg. No MCF/OL/HT-SLD/2007
2.1 OUTDOOR & INDOOR SWITCHING UNIT BILL OF MATERIALS
Sl.
No
1.
Item description Qty Remarks
LOAD BREAK SWITCH 1 MVA Regulator Feeder RMU
module
Make: Switch Gears tested & Approved by CPRI
Installation Location- Outdoor
Rating - 400 amps continuos
HRC Fuse rating - 100 amps with striker for three phase
tripping.
Application - For 11 kV, 1MVA HT Regulator input, Out put &
Bypass switching
Bus bar- Copper Bus Bar arrangement for XLPE 120/150 sq.mm
dual run cable termination
Earth switch - with making capacity & necessary interlock with
isolating device.
Shunt trip – 24 V d.c
Indication - local and remote ON/OFF indicators.
Aux. Contacts - required 6 NO & 6 NC
Enclosure: To be supplied with 3 module RMU out door
enclosure IP 55
Spares: HT HRC Fuses 100A – 1No. per LBS
2. VACUUM CIRCUIT BREAKER 1 MVA Transformer Feeder
RMU module
Switch Gear Make: AREVA T&D / Schneider (MG) / ABB /
Andrew Yule / Crompton Greaves / Siemens only
2.0 VCB
Application: - 1 MVA Transformer (11 / 0.433 kV) switching
Installation Location - Indoor
Rated voltage - 12 kV
Rated Frequency - 50 Hz
Rated continuos current - 630 amps
Rated interrupting current - 26.3 kA
Rated making current - 65.5 kA
Rated short time current for 3 sec. - 26.3 kA
Operating duty - 0 - 0.3 sec - CO 3 min - CO
Power frequency withstand voltage - 28 kV
3 Nos Out door
cubicle to
be arranged
as per
drawing
2 Nos.
Indoor
cubicle to
be arranged
as per
drawing
(BOM
mentioned
Sl 2.0 to
2.11 is for
individual
VCB
modules)
Page 5 of 23

Impulse withstand voltage - 75 kV
Busbar rating - 120 % of rated continuos current
Application - 1MVA Transformer switching
Integral Earth switch – required
Type: Horizontal draw out type with cradle assembly & metal
ramp
Operation -
Spring closing mechanism - Electrical motor operated OR
Solenoid
Breaker Closing - Manual & Electrical through TNC switch /
closing coil (110 V a.c derived from P.T)
Under voltage release - 110 V a.c derived from P.T
Shunt trip coil - 24 V d.c
Safety interlock 7 locking facility – Required
……………………………………………………………………
2.1 Metering: Digital TVM for measuring power parameters,
energy, harmonic parameters etc.,. with SNMP / RS 485 output
interface. Software for remote M&C shall be supplied.
Make: Satec. Model : PM 130 EH
Analog Voltmeter, Size: 96 x 96 with selector switch
Max. demand type Analog Ammeter ; Size: 96 x 96 with selector
switch
Phase sequence meter Size: 96 x 96 with selector switch
……………………………………………………………………
2.2 Protection Relay: Microprocessor based transformer
protection relay with SNMP / RS 485 output interface.
Features: 3 PHASE OVER CURRENT, EARTH FAULT RELAY +
THERMAL FOR TRANSFORMER, 20-110V AC/DC
Device code: 50/51, 46, 49
Design: Numeric
Functions: Low set and High set Over current
Low set and High set Earth Fault with site selectable Trip
characteristics, Definite inverse time tripping Thermal overload.
Display of parameters, built in self supervision, RS 485 Port
communication
Make: L&T, Model: IM 30 T
Software for remote M&C shall be supplied.
……………………………………………………………………
2.3 Master trip relay: High speed Relay with manual reset
Type VAJH 13, Alstom make
………………………………………………………………….
2.4 Metering & protection CT's - Resin cast dry type
Single phase, 2 core
Ratio – 75-150/ 5 - 5 A
Core - 1: Class - 1.0 15 VA
Core II - Class 5P10, 15 VA
Suitable for STC of 26.3 kA for 1 sec
…………………………………………………………………….
VCB BOM
mentioned
Sl 2.0 to
2.11 is for
individual
VCB
modules
Page 6 of 23

2.5 PT. - Resin cast dry type
Draw out type
3 phase 11000 / 110 (delta/star)
Burden - 100 VA Class - 1.0
………………………………………………………………..…
2.6 Breaker panel Indication:-
Breaker ON - RED
Breaker OFF - GREEN
Auto trip indication - AMBER
Spring Charge - BLUE
Trip Circuit healthy – White
…………………………………………………………………..
2.7 Accessories.
Mechanical counter, Space Heater with Thermostat, Fuse and
ON/Off switch
Aux. relays for Transformer high temperature alarm & trip, remote
trip/indication for PC interface etc.
Cubicle illumination lamp CFL 18 W retrofit type 230 V a.c
T - N - C switch
Electronic Hooter 24 V d.c Multi tone type
Anti pumping contactor
Emergency OFF Push Button Local & Remote
………………………………………………………………….
2.8 Spares: Spring charging motor –1, U/V& Shunt trip –1 each
………………………………………………………………….
2.9 Mimic diagram: An operating mimic diagram shall be
provided on the front side of each cubicle.
………………………………………………………………….
2.10 Enclosuer: Metal Clad; IP - 54; Module suitable to inter face
other modules with Bus coupler Module, Panel shall have
compartment for housing VCB, CT, PT, Relays and cable
chambers for each VCB. RMUs shall be Internal arc tested; Fully
insulated. Fully compartmentalized sheet steel enclosure with
automatic safety shutters, G.I foundation bolts with provision for
terminating 2 x 120 sq.mm XLPE cable using Raychem heat
shrinkable type end termination kit.
…………………………………………………………………..
2.11 Paint - Light Admirality Grey - 631 IS5 Powder coated
smooth glossy finish.
VCB BOM
mentioned
Sl 2.0 to
2.11 is for
individual
VCB
modules
Page 7 of 23

3. VACUUM CIRCUIT BREAKER Bus Coupler RMU
Application: - Bus coupler at 11kV bus
Enclosuer: Metal Clad; IP - 54; Internal arc tested; Fully
insulated. Fully compartmentalized sheet steel enclosure with
automatic safety shutters, G.I foundation bolts with provision for
terminating 1 x 120 sq.mm XLPE cable using Raychem heat
shrinkable type end termination kit.
Service - Indoor
Paint - Light Admirality Grey - 631 IS5 Powder coated smooth
glossy finish.
Rated voltage - 12 kV
Rated Frequency - 50 Hz
Rated continuos current - 630 amps
Rated interrupting current - 26.3 kA
Rated making current - 65.5 kA
Rated short time current for 3 sec. - 26.3 kA
Operating duty - 0 - 0.3 sec - CO 3 min - CO
Power frequency withstand voltage - 28 kV
Impulse withstand voltage - 75 kV
Busbar rating - 120 % of rated continuos current
Operation -
Spring closing mechanism - Electrical motor operated OR
Solenoid
Breaker Closing - Manual & Electrical through TNC switch.
Shunt trip coil - 24 V d.c
Safety interlock & locking facility - Required
Breaker panel Indication:-
Breaker ON - RED
Breaker OFF - GREEN
Accessories.
Mechanical counter, Space Heater with Thermostat, Fuse and
ON/Off switch
Aux. relays for remote trip/indication for PC interface etc Cubicle
illumination lamp CFL 18 W retrofit type 230 V a.c
T - N - C switch
Anti pumping contactor
Mimic diagram: An operating mimic diagram shall be provided
on the front side of each cubicle.
Enclosure: IP 54. Identical for inter facing above two Panels
4 Earthing system
a. Copper Plate earthing station as per Drg. Enclosed 6 Nos
b. G.I Pipe earthing station as per Drg. Enclosed 10 Nos
c. Out door yard grid earthing as per Drg. Enclosed 4 + 16
d. Supply & laying of Copper flat for earthing 40 x 6 mm 100 Mtrs
e. Supply & laying of G.I flat for earthing 35 x 4 mm 500 Mtrs
5. Monitoring & Control
a. PLC for complete Sub - Station Automation 1 No
1 No For Bus
Coupler
Page 8 of 23

(HT/LT & Captive system Analog , Digital input & out
put to interface PC for remote monitoring & control) as
per requirement.
Required Software, hardware & interface cables
A.R
b. For SNMP/RS 485 interface to PC from individual
equipment
c. OFC cable 1KM
d. End termination of the OFC cable 2 Nos
Industrial PC (Server & Viewer) as per specification 2 Nos
e. enclosed
Preferred make: HP
f. Colour laser printer : Preferred Make HP 1 No
g.
Stand alone Sub-station Mimic display of Poly- 1 No.
membrane
Supply, Installation, Testing & commissioning of Remote 2 Nos
Annunciation & Operating console with necessary
hardware interface apart from monitoring / control
through PC. (Panel for Manual & Remote mode of
h. Operation at local substation Control room) as per detail
specification
Size: 600mm x 600mm x 2100mm with accessories for
housing complete
Make: Elsteel, BCH or Rittal (PS)
Supply, Installation, Testing & commissioning of PC 2 Nos
Enclosure System for housing Industrial PCs
i.
Size: 600mm x 636(836)mm x 1600mm (Approx)
With Base/plinth, stationary based on TS & Handle set
and other accessories complete
Make: Elsteel, BCH or Rittal (PS)
j. Control cables for Sl.No. h 400 Mtrs.
Supply, Installation, Testing & commissioning of Substation
1 set
6 battery bank of 30 volts, 150 AH.
Each cell 2 V, 150 AH stationary
Make; Exide Plante (YKP) cell along with battery
charger & Non corrosive battery stand.
7
OPTIONAL
Total Sub-station SCADA & Interfacing software 1 set
2.2 Site Condition
The equipment covered under this specification is for indoor & outdoor installation
and should be suitable for use at the sites in CESC (Chamundeshwary Electricity
Supply Co.) & MCF (Master Control Facility) jurisdiction for the prevailing climatic
conditions.
2.3 Temperature:
The reference ambient temperature is to be taken as 43.3°C as per IS 9676.
Maximum ambient temp = 38°C
Page 9 of 23

2.4 Relative Humidity
Maximum: 90%, Minimum: 30 %
Average Annual rainfall: 750mm
Average no of thunderstorm days/annum: 40
Altitude: 1000 M above S/L
Rainy months: June to November
The atmosphere is normal, laden with mild dust suspension during the dry months
and is subjected to fog in cold months Heavy lightening occurs in the area during
rainy months.
All equipments shall be designed to withstand seismic forces, corresponding to an
acceleration of 0.1g.
3.0 CODES AND STANDARDS TO BE FOLLOWED
The equipment shall comply with the requirements of latest revision of following
standards issued by BIS (Bureau of Indian Standards), unless otherwise specified.
IS Code Description
IS 3427: Metal enclosed Switchgear and Control gear for voltages above
1000 v but not exceeding 11000 v.
IS 9046 Ac conductors of voltage above 1000V up to and including
11000V.
IEC:466:1987
:IS:14659
AC Insulator –enclosed Switch gear Control gear for rated
voltages above 1KV and up to and including 38KV.
IEC:694,1980:
IS:12729
Common clauses for high voltage Switch gear and Control gear
standards.
IEC: 529:1989: Degree of protection provided by enclosures(IP code).
IS: 12063
IS 722: Integrating meters.
IS 1248: Electrical indicating instruments.
IS 2071: Methods of high voltage testing.
IEC:129 AC Switches and Earthing Switches.
IEC:801 Monitoring and Control.
IS:13118 / High voltage AC circuits breakers.
BS 5311
IS/BS:5463: High Voltage Switches.
IS/BS:5227 Metal enclosed AC Switch gear.
IS/BS 5463 High Voltage switches
IEC 298 BS MV metal-enclosed / Switchgear
5311
IEC 265 MV switches,
IEC 56 MV AC circuit breakers,
IEC 801 Monitoring and control
SECONDARY WIRING
Specification : HFFR unilay, pre twisted single core multi strand electrolyte
grade, annealed copper cable,
Page 10 of 23

Confirming to IS: 694 / 1990
Size & Rating 1.5 sq-mm, 1.1 Kv grade shall be used for all control / interlock
wiring.
2.5 sq-mm, 1.1 Kv grade shall be used for all CT related wiring.
Power cable of suitable size for SDFUs / MCBs of rating up to
63 A. Color of the cable shall be Gray for control wiring.
Connectors : Mating type male-female connectors and holders shall be used
between each transportable section for control wiring.
Cage clamps : Din rail mounting, cage clamp terminal connectors shall be
used for all control and power wiring up to 63A.
Ferruling : Standard ferruling concept shall be followed for clear
identification of control circuit wiring as per IS 375 mentioned
below.
Letter ‘A’ – CT for primary protection excluding O/C
Letter ‘B’ –CT for busbar protection
Letter ‘C’ –CT for O/C including E/F & instantaneous
Letter ‘D’ –CT for metering & voltage control.
Letter ‘E’ –Reference voltage for instrument metering &
protection
Letter ‘F’ – Reference voltage for voltage control
Letter ‘G’ – Reference voltage for synchronizing
Letter ‘H’ –AC & AC/DC supplies Numbers –1 to 69 for
S’gears & Gen.
Letter ‘J’ – DC supply
-70 to 99 for
Transformers
Letter ‘K’ – Closing & tripping control circuit – Any no. 1
upward
Letter ‘L’ – Alarm & indication – Any no. 1 upward
Letter ‘M’ – Auxiliary & motor control devices –1 to 19 for
Switchgears, 20 to 69 for Generators & 70 to 99 for
Transformers
Numbers 10 to 29 – R phase
Numbers 30 to 49 – Y phase
Numbers 50 to 69 – B phase
Numbers 70 to 89 – Residual & Neutral CT &
Numbers 90 –Earth wire directly connected to earth bar.
For DC bus
Positive –Red, -Negative –Blue
3.1 Incase of imported equipment standards of the country of origin shall be applicable if
these standards are equivalent or stringent than the applicable Indian standards.
3.2 The equipment shall also conform to the provisions of Indian electricity rules and
other statutory regulations currently in force in the country.
4.0 SYSTEM:
The system network is 11000 Volts, 3 phase 3 wires 50 cycles which is stepped down
to 433 volts through distribution transformer with neutral solidly grounded. The
Page 11 of 23

voltage and frequency are subject to variation as per statutory limits governed by
Indian Electricity Rules 1956 with latest amendments in force.
DESIGN CRITERIA
4.1 The 11kV Switchgear shall be installed at the location shown in the SLD. The 11kV
distribution system, Vacuum Circuit Breaker shall be used to Control and isolate the
11kV / 433V Cast Resin dry type distribution transformers / HT Consumers
connected through 11kV grade underground cable at distribution center.
4.2 The Switchgear and component thereof shall be capable of withstanding the
mechanical and thermal stresses of short circuit listed in ratings and requirements
clause without any damage or deterioration of the materials.
4.3 For continuous operation at specified ratings temperature rise of the various
Switchgear components shall be limited to permissible values stipulated in the
relevant standard and / or this specification.
4.4 The equipment offered shall be suitable for continuous satisfactory operation as per
site condition specified elsewhere.
5.0 Fabrication:
Totally modular design concept.
Free standing, floor mounting and suitable for out-door installation.
The panel shall have easily removable and interchangeable sections.
Required service clearances shall be provided to carry out preventive and remedial
maintenance from front and rear side.
The panel shall be naturally convection-cooled & shall allow continuous full-load
operation, maintaining the temperatures within tolerance level of components.
Each bus bar compartment should have a barrier with 1.6 mm thick electro galvanized
coated / painted with fire resistance paint.
The degree of protection for the panel shall be IP 54 for VCB & IP 55 for LBS
6.0 GENERAL FINISH
The equipment should be totally enclosed, metal clad, vermin and dust proof suitable
for tropical climate use as detailed above. The body of the cubicle should be of
metalised and rust free.
6.1 Type of equipment
The equipment shall be compact, totally enclosed in as self contained self contained
self supporting compartment, mounted on base frame or channels. The assembly
shall be equipped with common power bus bar, load break Switches and Vacuum
circuit breaker as specified in specific requirement as above. All medium voltage
parts should be totally enclosed.
6.2 Bus bars:
a. Busbar material – Copper
b. The bus bars shall be Epoxy insulated High-purity electrolyte grade copper E-Cu 57
confirming to latest IS standard of 120 % rating of the switchgears.
Ele. Conductivity : 100% as per IAC Standard
Confirming to: DIN 1759, DIN 40 500 and relevant bus bar IS standard
Page 12 of 23

c. The cross sectional area of the copper bus bar and jointing accessories shall be stated
in the tender.
d. Bus bar shall be supported on insulators made of non-hygroscopic, non-inflammable
material with tracking index equal to or more than that defined in BIS. The main bus
bars shall have uniform current ratings throughout their length as specified in data
sheet / job specification.
e. Both horizontal and vertical bus bars, bus joints and supports shall be capable of
withstanding dynamic and thermal stresses of the specified short circuit currents for 3
second. Only high tensile strength bolts, nuts and washers shall be used in line with
IS: 13497. The hot spot temperature of bus bars including joints at design ambient
temperature shall not exceed 95°C for normal operating conditions.
f. The current rating as defined for Switchboard and components in data sheet / job
specification are for design ambient temperature at site conditions and for being
inside the cubicle at fully loaded condition. The vendor shall suitably derate the
nominal rating to suit the above condition.
g. All bus bars shall be insulated with shrinkable PVC sleeves of suitable voltage grade,
shall be used for phase bus bars.
h. Removable type shrouds shall be provided for joints.
i. Minimum clearance between live parts, between live parts to earth shall be as per
applicable individual standard of components.
j. Interconnections between the main bus bars and individual units shall be made by
using vertical copper bus bars of adequate rating. These interconnections of the
vertical bus bars shall be in separate compartment and fully shrouded.
7.0 LBS: OUTDOOR
a. The LBS offered shall conform to IEC-265 IS-9920 (all parts) as amended to date.
The LBS shall be of 400 Amps, triple pole, spring assisted hand operated type with
quick break contacts, with earth-switch & interlock. As per IS: 9920, IEC 265.
b. Each LBS should be fitted with HRC type fuse trip and earth fault indicator with
CBCT of reputed brand.
c. The operating handle shall have the three positions “ON”“OFF”, and “EARTH”
which shall be clearly marked with suitable arrangement to padlock in any position.
A safety arrangement for locking shall be provided by which the isolator operation
shall be prevented from “ON” position to “EARTH” position or vice versa in a single
operation.
d. Pilot lamp type indication of 24v dc for " ON - OFF - EARTH FAULT - EARTHED
- TRIP & lamp test.
e. Plinth: The panel shall be supplied along with base plinth of 100 / 50 –mm height for
each transportable modular section and shall be made of C – channel forming
sectional ‘Box’.
f. Integral cable test terminals for test plug with clear identification mark and with
interlocked cover shall be provided. The interlocks shall be so arranged that, the
cable test terminals will be accessible only in the “EARTH” position of the isolator.
g. There must be provision to fix motor to operate the LBS electrically.
Page 13 of 23

7.1 Features:
a. Auto trip on earth fault & fuse failure
b. Mechanical tripped on fault indication.
c. Anti-reflex operating handle.
d. LV Pilot cable box and protection compartment. MV cable box to comply in
accordance with EATS 41-26. Modular construction with removable side sheets
on three sides for better access required during installation & maintenance.
Should have fully interlocked cable test access cover.
e. Cast resin encapsulated bus bars in air. Bus chamber to be of extensible version.
f. Flange bolts accordance with EATS 35-1, (or can be fitted with outgoing cable
box).
g. IP55 outdoor enclosure or better version.
7.2 Switchgears operation : Switchgears are to be mounted in such a way its handle
operation shall confirm to per IS 4237
-ON Closing –Clockwise i.e., Vertically upward
-OFF Opening –Anti-clockwise i.e., Vertically down ward
8.0 Vacuum Circuit Breaker: IP 54 Enclosure
a. The unit shall consist of 11KV, 630Amps VCB (for Controlling transformer),
load breaking and fault breaking type fitted with three 630 Amps continuously
rated Vacuum insulated bus bars and arrangement for cable to the primary side
of the transformer.
b. The circuit breaker shall be suitable for manual closing and opening and also for
provision for remote tripping in future.
c. The operating mechanism shall be direct hand operated trip free with a
mechanically operated indicator, positively coupled to the operating mechanism
to indicate whether the breaker is in the closed or in the open position.
d. Voltage Indication: There should be arrangement to check whether the cable
connecting tot the isolator is live or not.
e. The indications for ON/OFF/EARTH of the Isolator & Breaker Switches should
be visible from outside even with the enclosure.
f. Current Transformer: The Ratio of the CTs shall be suitable for Controlling
transformer as specified. The VA burden of the CTs shall be sufficient to
supply the energy required by the relay for normal operation and tripping of the
circuit breaker.
g. Protection System: The protection system should be provided. It must provide
immediate protection and can detect faults instructing the circuit breaker to trip
in less than 40ms.It must have improved operation and Control with the Relay
settings clearly displayed on the front of the panel.
It shall have the provision for the trip test on circuit breaker. The trip inhibit
facility allows the Relay to be tested without tripping the circuit breaker.
Secondary injection can also be carried out using conventional test equipments.
The switchgear and switchboards shall be designed so that the position of the
different devices is visible to the operator on the front of the switchboard and
operations are visible as well.
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8.1 Voltage indicator lamps and phase comparators
Each function shall be equipped with a voltage indicator box on the front of the
device to indicate whether or not there is voltage in the cables. The capacitive
dividers will supply low voltage power to the lamps. Three inlets can be used to
check the synchronization of phases. This device shall be in compliance with IEC
61958 standard.
8.2 Operating lever
An anti-reflex mechanism on the operating lever shall prevent any attempts to reopen
immediately after closing of the switch or earthing switch. All manual operations will
be carried out on the front of the switchboard.
8.3 Front plate
The front plate also shall have appropriate degree of protection for outdoor
application. The front shall include a clear mimic diagram which indicates the
different functions. The position indicators shall give a true reflection of the position
of the main contacts. They shall be clearly visible to the operator.The lever operating
direction shall be clearly indicated in the mimic diagram.The manufacturer's plate
shall include the switchboard's main electrical characteristics.
8.6 OPERATION AND INTERLOCKING:
a. All operations shall be from front of the equipment via spring-assisted mechanism.
The Main Unit and VCB for Tee-off should be provided with a series trip coil and
under-voltage release for tripping. It shall be possible to operate the Switches and
circuits breaker manually and spring assisted mechanism shall ensure speed of
operation of Switches.
b. Operation handle shall be considered as part of the unit and should be provided with
each unit.
c. Load break Switches and earthing Switches shall be fully interlocked to ensure that
operation is carried out in correct sequence. Movement of operating handle against
interlock shall not by any means originate, store or activate the energy mechanisms.
Padlocking facility shall be provided for operation of load Switch and earthing
Switch. Interlocks shall ensure safety of operation.
d. Simultaneously closing of the main Switch and earth Switch. This interlock shall be
integral part of the operating mechanism. Also separate operating shafts shall be
provided for operating of earthing Switch and main Switch for the same purpose.
e. The fully interlocked integral test facilities are to be provided underneath the units,
so that access to the test terminals is achieved only be removal of a cover.
f. All mechanical interlock shall be robust so as not to give any way during normal
operation.
g. The tripping of breaker unit should be provided with push button.
8.7 RELAY CO- ORDINATION
Bidder shall ensure proper relay co-ordination between 11 KV VCB & transformer
secondary protective relay unit and shall provide calculation in support of the same.
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Wiring shall be terminated with pin & ring type ferrules with ferrule numbers marked
at both ends of wiring. CT wiring shall be marked with additional distinct Red tags on
both ends. All secondary wiring shall be terminated by using Wago make (cage clamp
type) terminal blocks.
8.9 CABLE BOX
a. The VCB's shall be provided with suitable and identical cable boxes for
connection Single / dual runs of 3 core, 11kv XLPE cables of size up to 240
mm 2 approaching vertical from below. The cable shall be so located at
convenient height to facilitate easy cable jointing/termination work.
b. The access for the isolator cable box shall be from side and the access for the Teeoff
cable box shall be from rear side and distanced of bottom level of wiping
gland from ground shall be maintained at 350 mm (minimum)
c. The cable boxes shall be with detachable front cover for ease of termination &
shall be interlocked with Switch position (i.e. when isolator is in Earth / OFF
position.
d. The design of the cable box shall be such that any type of jointing methods such
as heat shrinkable/push on type /cold shrinkable type termination’s can be
adopted.
8.10 EARTHING
a. All units shall have a special earth bar with a sectional area of not less than 100
mm 2 run along the whole of metal enclosed Switch structure, each end being
connected to the main earthing system where metal cases are used on instruments
these shall be connected to this bar by conductors of not less than 16mm 2 section.
b. A mechanical ‘ON/OFF’ indicator shall be provided on isolators and VCB
breaker to indicate whether Switch is ON of OFF.
8.11 REMOTE MONITORING & CONTROL PANEL
a. A separate remote monitoring and control Panel, Pre Fabricated Make of Elsteel,
BCH or Rittal (PS), only shall be provided with all fixing accessories originally
supplied by the enclosure manufacturer. This panel shall have manual control
features for switching ON /OFF of equipments with indications and suitable
interlocks & feed back.
b. The Panel shall be located around 100 mtrs away from the system. All the
necessary control cables and its integration shall be provided.
8.12 OTHERS
a. All foundation bolts, nuts, washer for installation shall be supplied by the
manufacturer.
b. Removable eye bolts shall be provided to facilitate the handling of the cubicles
c. Labels: All cubicles shall be clearly labeled as required indicating where
necessary for their purpose and “ON” / “OFF” lettered on brass, enamel iron or
other suitable materials. Name plate shall be of Aluminium sheet of 2 mm thick
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9.0 Tests.
Each type of H.V. Switchgear shall be completely assembled, wired, adjusted and
tested at the factory as per the relevant standards and during manufacture and on
completion.
9.1 Routine Test:
All routine tests shall be carried out in accordance with IS at works before despatch
a. Withstand voltage at Power Frequency for all current carrying parts including
wiring.
b. Measurement of resistance of the main circuit
c. Withstand voltage on auxiliary circuits.
d. Operation of functional locks, interlocks, signaling devices and auxiliary devices.
e. Suitability and correct operation of protections, Control instruments and electrical
connections of the circuit breaker operating mechanism (PRIMARY &
SECONDARY INJECTION)
f. Verification of wiring.
g. Visual Inspection.
Routine test shall be carried out on all equipment such as circuit breaker current
transformers, relays, meter etc. As per relevant standards.
9.2 Type Test.
The equipments should have Type tested certification on a typical section of the bus
assembly of each type of Switchgear. Units shall be type tested in accordance with
IEC Standards 60056, 60129, 6028,60529 and 60694.
a. Impulse test with breaker inside the cubicle
b. Temperature rise test with breaker inside the cubicle
c. Short Circuit test with breaker inside the breaker
d. Dielectric Tests
e. Test of apparatus i.e. circuit breaker and earthing Switch
f. Arc Fault test
10. Test Witness.
All Routine Test shall be performed in presence of owner’s representatives, if so
desired by the Owner. The Contractor shall give at least fifteen (15) days advance
notices of the date when tests are to be carried out.
10.1 Test Certificates:
a. Certified reports of all the tests carried out at the works shall be furnished in
three (3) copies for approval of the Owner.
b. The equipment shall be dispatched from works only after receipt of owner’s
written approval of the test reports.
c. Type test certificate on any equipment, if so desired by the Owner, shall be
furnished; otherwise the equipment shall have to be typed tested, free of
charge, to prove the design.
Page 17 of 23

11.0 Drawing Approval
12.0 Manuals:
a. Bidder should confirm the SLD drawing enclosed and shall furnish proposed
layout block diagram.
b. Are required to be mentioned
c. The bidder has to provide all the relays characteristics
d. The bidder has to take the approval for the various drawings of the RMU unit
including the protection scheme..
The bidder has to provide the complete original technical manual for the installed
items.
Indian Electricity Rules: 1956
Indian Electricity Act: 1910
13.0 Specification For Industrial Computer
The Industrial Computer configuration includes supply of integrated solution
comprising of the following:
1. 19” 4U industrial rack mount P4 chassis
2. Single Board Computer
3. 19” 1U foldable TFT Monitor with Keyboard and mouse
4. Operating System: Windows XP Professional
5. PCI Add-on interface cards.
The Specifications of the industrial Computer are as follows
13.1 A. 19” 4U industrial rack mount P4 chassis
13.1.1 Feature
19” 4U rack mount chassis shall meet industrial standard.
Chassis shall be rugged construction suitable for harsh industrial environment.
Chassis shall have lockable door to restrict access of On/Off, Reset and CdRom drive.
Suitable for 14 full-length cards
13.1.2 General
Construction Heavy Duty Steel with aluminium front
panel
Drive Bay External: 5.25” x 3 + 3.5 “ FDD x 1
Internal: 3.5” HDD x 1
Cooling Fan Two ball bearing cooling fans
Indicator Power on/off, HDD
Switch
Power On/Off, System Reset, K/B Lock
Color
Black
Backplane
Power Supply
14 slot (12x PCI) active PICMG Backplane
330 W PS/2 ATX Power supply suitable
for P4 based solution, Input at 230 V, 50
Hz.
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13.1.3 Accessories
1 x 3.5” Floppy disk drive
1 x CDROM R/W and DVD R Combo Drive
Storage Disk: 1 x ATA 100 IDE 80 GB 7200 rpm HDD
1 x SATA Disk 80 GB
Speakers: Creative Stereo Speakers
13.2 B. Single Board Computer (SBC)
CPU: Intel ® Pentium 4 Processor in the 478 Socket, FSB 800/533/400 MHz
Chipset: Intel ® 865
Memory: 1 GB DDR SDRAM up gradable to higher capacity
Display: AGP 8X/4X VGA
LAN: Ethernet RJ-45 connector with LED indicator
Audio: onboard AC’97 or equivalent
13.2.1 I/O
2 x RS-232 Serial, 1 x ECP Parallel port
4 x USB 2.0 ports
1 x PS/2 for Keyboard / Mouse
2 x EIDE with Ultra DMA 100/66/33
2 x Serial – ATA 150 port
1 x Floppy drive port
Hardware Monitoring: System monitor Fan, temperature and voltage
Watchdog Timer: Programmable 0.5 Sec to 254 min.
OS Compatibility: Windows 2000, Windows XP
Environment: Operating temperature – 0 to 60 deg C
Relative Humidity – 5% to 90 %, non condensing
13.3. C. 19” 1U foldable LCD Monitor with Keyboard and mouse
LCD: 15” TFT active Matrix panel
Resolution: 1024 x 768
Pixel Pitch: 0.297 x 0.297 mm
Contrast Ratio: 300:1
Brightness: 200
Keyboard: 105 keys
Mouse: Optical Scroll mouse / touch pad with two key buttons
Mounting: 1U 19 “ rack mount with Keyboard drawer
Power Supply: 230 V, 50 Hz
13.4 D. Operating System: Windows XP Professional
Windows XP professional with latest Service Pack in a CD/DVD
13.5 E. PCI Add-on interface cards
2 port Isolated PCI, RS485 interface cards – 4 Nos.
4 port isolated PCI RS232, RS422/485 interface cards – 4 Nos.
13.6 Laser Jet Printer
LaserJet printer with USB interface, Print speed: 22 ppm
Page 19 of 23

14. OPTIONAL
16.1 Monitoring and Control System or SCADA System
The Scope of the SCADA shall consist of :-
Supply of Required hardware to interface the discrete inputs, discrete outputs, analog
inputs and intelligent RS232/485 interface.
Supply, installation, wiring and commissioning of Programmable logic controller
along with programming software for device interface and control
Supply of Industrial Computer System
Supply, installation and commissioning of Interface media (OFC or Copper) for
Ethernet connectivity between Power station and monitoring center (distance approx.
1200 meters).
Development of GUI based software modules for Supervisory Monitoring, storage
and Control.
14.1.1 Features
i. Acquisition, Monitoring and Storage of:-
Major Power Station Switch Gear ON, OFF and Trip status
Power system parameters (on a LT side) – Voltage, Current, Frequency, Power,
Power factor, Distortion and Energy through RS485 or SNMP of multifunction power
meters.
Health parameters of Ring Main Unit (RMU) controllers
Health parameters (both analog and status) of Feeder Protection Relays
Health parameters and status of Captive Gen Controllers through RS485 or SNMP
Uninterruptible Power supply systems through RS485 or SNMP
ii. Control of:-
Substation Switchgear operation
HT Voltage Regulator operation
LT Automatic Voltage Regulators
Utility / DG Auto Mains failure operation by using DG set controller
For the above defined systems algorithms and procedure will be provided at the
time of designing.
14.1.2 General
The supplier shall use commercially available MMI / HMI SCADA system for
interfacing the devices and development of GUI for monitoring, storage and control.
Developing the drivers for interfacing, compatible RS485/232 and SNMP devices
shall be the scope of the designer / supplier.
MCF will provide the MODBUS protocol query information about the RS485 devices
details wherever available.
NOTE: Bidders must mention in detail about the tech. offer & limitation if any.
Rates for all the main items & sub-items to be mentioned clearly
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