QLM acted along with QLA or QOA in ARNO locos
Action to be taken
a) Check the HT-2 compartment for any smoke, burning smell, fire and any presence of oil in oil trap chamber, oil splashes from GR safety valve or TFR explosion vent underneath of the locomotive through vent pipe. b) Check TFR and GR oil level for any abnormal increase and CGR arc chutes, TFR terminals, and roof bushing bars, RCAPTFWA & CAPTWA panel for any abnormality.
c) If there is any abnormality, DO NOT reset QLM target. Contact TLC.
d) If everything is normal in the feeding circuit, check the auxiliary power circuit (ARNO, all auxiliary motors, CHBA, a0, a1, terminals, cab heaters ,cab AC,TFVT, C118, R118, Q30, UA1, UA2, EM contactors, HVSI-1, HVSI-2 and cab 2 switch panel for any smoke, burning smell, fire, high temperature or any abnormality. If anything found abnormal, try to isolate that equipment. If successful, reset the relay targets and resume traction, otherwise contact TLC.
e) If everything is normal, reset the both relay targets and resume traction.
f) If QLM drops second time with other relays, DO NOT reset the relay target contact TLC.
QRSI-1 AND QRSI-2:
QRSI-1 and QRSI-2 are over current relays provided in the traction power circuits to protect the equipment such as traction motors, SL, line contactors, volt meters ammeters, reversers etc., from over current. These relays are set at 3600 amps for WAG5 and 4000A for WAG7 & WAP4 Locos.
When relay QLM or QRSI-1 or QRSI-2 or both energizes, its normally closed interlock will open in MTDJ branch and trips DJ immediately with red target indication.
Action to be taken
a) Check the HT-2 compartment for any smoke, burning smell, fire and any presence of oil in oil trap chamber, oil splashes from GR safety valve or TFR explosion vent underneath of the locomotive through vent pipe. b) Check TFR and GR oil level for any abnormal increase and CGR arc chutes, TFR terminals, and roof bushing bars, RCAPTFWA & CAPTWA panel for any abnormality.
c) If there is any abnormality, DO NOT reset QLM target. Contact TLC.
d) If everything is normal in the feeding circuit, check the auxiliary power circuit (ARNO, all auxiliary motors, CHBA, a0, a1, terminals, cab heaters ,cab AC,TFVT, C118, R118, Q30, UA1, UA2, EM contactors, HVSI-1, HVSI-2 and cab 2 switch panel for any smoke, burning smell, fire, high temperature or any abnormality. If anything found abnormal, try to isolate that equipment. If successful, reset the relay targets and resume traction, otherwise contact TLC.
e) If everything is normal, reset the both relay targets and resume traction.
f) If QLM drops second time with other relays, DO NOT reset the relay target contact TLC.
QRSI-1 AND QRSI-2:
QRSI-1 and QRSI-2 are over current relays provided in the traction power circuits to protect the equipment such as traction motors, SL, line contactors, volt meters ammeters, reversers etc., from over current. These relays are set at 3600 amps for WAG5 and 4000A for WAG7 & WAP4 Locos.
When relay QLM or QRSI-1 or QRSI-2 or both energizes, its normally closed interlock will open in MTDJ branch and trips DJ immediately with red target indication.
