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

More documents

Recommendations

Info

which closes in case of my internal fault(s) in the shunt capacitor bank. II. From each SP 1. 110V dc low.. 2. 240V ac fail 3. Catenary-1 fail 4. Catenary-2 fail 5. Catenary-3 fail 6. Catebary-4 fail 7. AT-1 Alarm 8. AT-1 Fault 9. AT-2 Alarm 10. T-2 Fault 11. At-3 Alarm 12. AT-3 Fault 13. AT-4 Alarm 14. AT-4 Fault 15. CB.1 ―Locked out‖ due to low gas/air pressure. 16. CB.2 ―Locked out‖ due to low gas/air pressure. For details of AT-1 to 4 Alarms and At-1 to 4 Faults, explanation given in clause No. 5.5.1.I.b (iv) may be seen. III. From each SSP 1. 110V dc low 2. 240V ac fail 3. Catenary-1 fail (wherever required) 4. Catenary-2 fail (wherever required) 5. AT-1 Alarm 6. AT-1 Fault 7. AT-2 Alarm 8. AT-2 Fault For details of AT-1 to 2 Alarms and At-1 to 2 Faults, explanation given in clause No. 5.5.1.I.b (iv) may be soon. IV. From each ATP 1. AT-1 Alarm 2. AT-1 Fault 3. AT-2 Alarm 4. AT-2 Fault 5. 240V ac fail 6. 110V dc low For details of AT-1 to 2 Alarms and At-1 to 2 Faults, explanation given in clause No. 5.5.1.I.b (iv) may be seen. 5.5.2 The protective relays viz. OCR, DPR and delta-I relay reset themselves immediately after operation. - 10 - 5.5.3 Amongst the above tele-signals, the monitoring of ―dc low‖ Indications shall be through solid-state comparator circuits, while that of ―a.c. fail‖ and
- 11 - ―PT fuse fail‖ indication through rectifier and no-volt relays, and that of ―catenary supply‖ indications through rectifier and solid-state comparator circuits. Monitoring of the balance indications shall be through 110V dc interposing relays. The rectifier, comparator circuits, no-volt relays and interposing relays shall form part of the RTUs. 5.6 Tap-changer control of traction power transformers 5.6.1 The traction power transformer at s TSS may be provided with motor operated off-circuit tap changer with 110V dc control circuit. For remote control of the tapchanger from the RCC, progression/regression telecommand shall be provided. The tap position shall be telesignalled to the RCC in confirmation of the telecommand. 5.6.2 The tap changer switch has six tap positions. For each tap position one NO type contact is provided. At any tap position, only the corresponding NO contact will remain closed and the remaining contacts will remain open. 5.6.3 Each telecommand for the tap changer shall include progression/regression telecommand and the back telesignal from the TSS of the tap position. 5.7 The terminal required for interfacing the controlled station with RTU at TSS shall be provided by the railways in the control and relay panel at TSS. The terminal at SP/SSP/ATP shall be provided on a terminal board mounted on the wall inside the masonry building at SP/SSP/ATP. The supply of cable and wiring between the control and relay panel/terminal board and RTU shall be done by the successful tendered. The cable shall conform to IS:1554. 5.8 Underground trunk cable 5.8.1 Underground telecommunication trunk cable is provided by the railway alongside the railway track. Three part of conductors (one pair for ―Send‖, one pair for ―Receive‖ and third pair as spare) from this cable shall be made available for remote control purposes. 5.8.2 The cable shall conform to railways specification No.TC-14/75. The salient technical particulars of the star quads Of the cable circuits made available for remote control operation are as under: (a) Dia of copper conductor 0.9mm (b) Type of insulation Paper (c) Nominal loop resistance at 55.2 ohms/km 20 degree c. (d) Resistance unbalance between Not more than 1% Two conductors of a pair of nominal loop. (e) Nominal mutual capacitance of 0.041 microfarad/km. The pairs of paper insulated VF quads (f) Capacitance unbalance after Balancing of full loading section of 1.83km. (i) Between pairs (same quad) Less than 40pF
Page 1 and 2: SPECIFICATION FOR SPECICATION NO. E
Page 3 and 4: 2.3 Atmospheric Conditions Maximum
Page 5 and 6: phases of the 220 or 132kV, three p
Page 7 and 8: main control and relay panel, 240V
Page 9: indicated by operation of Buchholz
Page 13 and 14: - 13 - 5.8.8. The Railways will tap
Page 15 and 16: - 15 - (ii) There shall be two data
Page 17 and 18: 6.1.3. Mimic diagram board (MDB) -
Page 19 and 20: equipments status including manuall
Page 21 and 22: shall confirm in the offer that the
Page 23 and 24: 6.1.6 Data-logging printers - 23 -
Page 25 and 26: - 25 - 6.2.3.2 The ac supply will h
Page 27 and 28: 6.4 Equipment capacity - 27 - 6.4.1
Page 29 and 30: - 29 - 6.5.2 Whenever the number of
Page 31 and 32: - 31 - channels and other such aids
Page 33 and 34: e so engineered that they are clear
Page 35 and 36: 6.12.4.4 The system shall also take
Page 37 and 38: where, Ln, Ln+l = kilometerage of t
Page 39 and 40: 7.2 The required quantity of instru
Page 41 and 42: - 41 - 11.4 Only after clear writte
Page 43 and 44: - 43 - c) Detailed step by step pro
Page 45 and 46: - 45 - ANNEXURE-I TYPICAL REQUIREME
Page 47 and 48: - 47 - ANNEXURE-2 SCHEDULE OF GURAN
Page 49 and 50: - 49 - ii) Battery voltage and ampe
Page 51 and 52: - 51 - ii) Limits (field settable)
Page 53 and 54: c) Number of controlled stations th
Page 55 and 56: 40. Level meters ( dB Meter) i) Mak
Page 57 and 58: ix) Rated accuracy limit factor 15
Page 59 and 60: - 59 -
Page 61 and 62:
SS -TRACTION SUBSTAION. TP -AUTO TR
Page 63:
- 63 -
show all

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

Create successful ePaper yourself

Delete template?

Save as template?