SPECICATION NO. ETI/PSI/144 (12/91) SPECIFICATION FOR ... - rdso

Specification No. : ETI/PSI/144 (12/91)
SUPERVISORY CONTROL AND DATA ACQUISITION (SCADA) SYSTEM FOR
2x25 kV A.T. TRACTION POWER SUPPLY
1.0 Scope
1.1 This specification applies to the design, manufacture, supply, erection,
testing and commissioning of SCADA system to enable the Traction Power
Controller(TPC) or operator, to control from a central place called Remote Control Centre
(RCC), the switching operations of the equipments at traction sub-stations and switching
stations (hereinafter called "controlled stations"), to monitor the status of the equipments
and to collect and store information and data relating to the overall traction power supply
to the 2X25 kV overhead traction lines.
1.2 The SCADA equipment shall be based on the state-of-the-art technology.
The equipment at RCC, here after called as master station equipment, shall include dual
main mini-computer(s) system with sufficient semi-conductor RAM main memory, high
speed computer to computer communication link, system consoles, man-machine
interfaces through color VDUs and key-boards, front-end processors, modems, data
logging printers, watch dogs, floppy disks and hard disks along with their drives, switchover
unit for switching over from main to standby computer or vice-versa, mimic driver
and mimic diagram board (MDB), UPSs with battery, console desks and surge arresters.
1.2.1 As an alternative to the master station built around minicomputers, tenderer
shall also quote for a master station built around dual main micro-computers.
1.3 The SCADA equipment at controlled station, hereafter called as Remote
Terminal Unit (RTU), shall be micro-processor based and shall be compatib1e with the
master station equipment• It shall be complete in all respects including central processing
unit with watch dog, digital input/output modules, alarm input modules, analogue input
modules, transducers, memory, interposing relays, summation current transformers, power
supply units, surge arresters and modem.
1.4 The SCADA equipment at RCC and at controlled stations shall be complete
with all units, parts and accessories necessary for their efficient operation and all such
units, parts and accessories shall be deemed to be within the scope of this specification
whether specifically mentioned or not.
2.0 Service conditions
2.1 The SCADA equipment may be installed any where in India. The
equipment at RCC shall be installed indoors. Air-conditioning may be provided, if
convenient, or else filtered air will be blown through to cool the equipments.
2.2 The SCADA equipment at controlled stations shall be installed inside track
side cubicles and subjected to vibrations on account of running trains on the near-by
railway tracks. These cubicles will not be air-conditioned and are liable to exposure to
polluted atmosphere.