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

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.
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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