QRSI-2 tripped
Action to be taken
a) Check for any smoke, burning smell, flash/weld or any abnormality in
RSI-2, SL-2, CTF-1 in BA1 panel, L4, L5, L6 J2, CTF2 QD2 in BA2 panel, CTF3 in BA3 panel, TM 4, 5, 6, U5, U6, A4, SJ. If everything is normal reset the relay target and accelerate gradually, duly watching ammeters. If anything found abnormal, try to isolate the same, otherwise contact TLC for further instructions.
b) If QRSI-2 is tripping after long Interval, check the equipment mentioned above.
c) If everything is normal, reset the target and resume traction.
d) If QRSI-2 is tripping frequently, inform TLC, check the equipment as mentioned above. If there is no abnormality, isolate TM 6 first (since QD2 is not connected in TM 6), reset relay, close DJ and resume traction. If QRSI-2 tripped again isolate TM5 and TM4 one by one and try. If QRSI-2 is not tripping when HMCS-2 in 4 or 3 or 2 continue traction with that traction motor in isolated condition and work with 5/6th of maximum permissible load.
e) If QRSI-2 is tripped in all positions of HMCS-2, normalize HMCS 2 and place HVSI-2, HVMT-2, and HVSL-2 on 0. Resume traction with 50% of the maximum permissible load with normal current rating. If load does not permit contact TLC. NOTE: In WAP-4 (without RB) and WAM-46P locos C145, ATFEX and CTFs are not provided.
In WAG-7 and WAP-4 locos C145 and ATFEX are connected in RSI-2 circuit
QOP-1 AND QOP-2
These are earth fault relays provided in the traction power circuit to protect the equipment from earth fault. Acting of these relays indicate that there is an earth fault in the equipment such as RSI blocks, traction motors, line contactors, reversers, ATFEX, CTF etc., or in the interconnected cables. When QOP-1 or QOP-2 relay acts, its normally closed interlock will open in the MTDJ branch and trips DJ immediately and also a red target will drop in the relay.
Action to be taken
a) Check for any smoke, burning smell, flash/weld or any abnormality in
RSI-2, SL-2, CTF-1 in BA1 panel, L4, L5, L6 J2, CTF2 QD2 in BA2 panel, CTF3 in BA3 panel, TM 4, 5, 6, U5, U6, A4, SJ. If everything is normal reset the relay target and accelerate gradually, duly watching ammeters. If anything found abnormal, try to isolate the same, otherwise contact TLC for further instructions.
b) If QRSI-2 is tripping after long Interval, check the equipment mentioned above.
c) If everything is normal, reset the target and resume traction.
d) If QRSI-2 is tripping frequently, inform TLC, check the equipment as mentioned above. If there is no abnormality, isolate TM 6 first (since QD2 is not connected in TM 6), reset relay, close DJ and resume traction. If QRSI-2 tripped again isolate TM5 and TM4 one by one and try. If QRSI-2 is not tripping when HMCS-2 in 4 or 3 or 2 continue traction with that traction motor in isolated condition and work with 5/6th of maximum permissible load.
e) If QRSI-2 is tripped in all positions of HMCS-2, normalize HMCS 2 and place HVSI-2, HVMT-2, and HVSL-2 on 0. Resume traction with 50% of the maximum permissible load with normal current rating. If load does not permit contact TLC. NOTE: In WAP-4 (without RB) and WAM-46P locos C145, ATFEX and CTFs are not provided.
In WAG-7 and WAP-4 locos C145 and ATFEX are connected in RSI-2 circuit
These are earth fault relays provided in the traction power circuit to protect the equipment from earth fault. Acting of these relays indicate that there is an earth fault in the equipment such as RSI blocks, traction motors, line contactors, reversers, ATFEX, CTF etc., or in the interconnected cables. When QOP-1 or QOP-2 relay acts, its normally closed interlock will open in the MTDJ branch and trips DJ immediately and also a red target will drop in the relay.
