GROUND RELAY/GROUND RELAY LOCK OUT
MOTORING
a) TA RECTIFIER AND FUSES-short, rectifier base burnt
b) TA WINDING-burnt
c) CABLES IN CLEAN ROOM- touching to floor, cleat damages, water in clean room
d) IPR-BASE BOLT CUT, LUG AND CONNECTION- lug rubbing with cover
e) DAMPER RESISTANCE- BASE BOLT CUT, LUG AND CONNECTION-lug rubbing with cover f) TCC POWER CABIN –cables rubbing
g) TCC - BUSBARS, CABLES- breakages, rubbing
h) DC LINK CONTACTOR- arc chute breakages ,insulation breakages
i) BRAKING CONTACTOR- arc chute burnt, insulation failures
j) CARBODY CABLES- rubbing with loco body
k) TRACTION MOTOR- winding burnt, rotor bar cut, lead joint cut
l) UMBERLLA BOOT- puncture, water
m) L456 INDUCTOR- base bolt cut, less gap with ECC3
n) SPLIT INSULATOR IN ECC1- insulator cut
o) GRT- winding failure
p) T2- winding failure
q) GR RELAY- coil short, interlock failure
r) CABLES FROM L456 INDUCTOR TO TCC2 rubbing with ECC3 bottom plate
s) WATER ENTRY TO ECC1 AND ECC2
t) SPLIT INSULATORS OF POWER CABLES
u) WATER IN CLEAN ROOM
v) GR CUTOUT SWITCH OPEN-switch defect.
DYNAMIC BRAKE (INADDITION TO MOTORING FAULT)
w) BRAKING CONTACOTR
x) DB GRID AND CABLES-water, insulation puncture
y) IB1,2 IBKBL1,2 TRANSDUCERS
z) BKBL MOTOR-winding burnt, commutator failure, pig tail cut
aa) WATER ENTRY TO GRID
bb) FOREIGN BODY IN GRID
MOTORING
a) TA RECTIFIER AND FUSES-short, rectifier base burnt
b) TA WINDING-burnt
c) CABLES IN CLEAN ROOM- touching to floor, cleat damages, water in clean room
d) IPR-BASE BOLT CUT, LUG AND CONNECTION- lug rubbing with cover
e) DAMPER RESISTANCE- BASE BOLT CUT, LUG AND CONNECTION-lug rubbing with cover f) TCC POWER CABIN –cables rubbing
g) TCC - BUSBARS, CABLES- breakages, rubbing
h) DC LINK CONTACTOR- arc chute breakages ,insulation breakages
i) BRAKING CONTACTOR- arc chute burnt, insulation failures
j) CARBODY CABLES- rubbing with loco body
k) TRACTION MOTOR- winding burnt, rotor bar cut, lead joint cut
l) UMBERLLA BOOT- puncture, water
m) L456 INDUCTOR- base bolt cut, less gap with ECC3
n) SPLIT INSULATOR IN ECC1- insulator cut
o) GRT- winding failure
p) T2- winding failure
q) GR RELAY- coil short, interlock failure
r) CABLES FROM L456 INDUCTOR TO TCC2 rubbing with ECC3 bottom plate
s) WATER ENTRY TO ECC1 AND ECC2
t) SPLIT INSULATORS OF POWER CABLES
u) WATER IN CLEAN ROOM
v) GR CUTOUT SWITCH OPEN-switch defect.
DYNAMIC BRAKE (INADDITION TO MOTORING FAULT)
w) BRAKING CONTACOTR
x) DB GRID AND CABLES-water, insulation puncture
y) IB1,2 IBKBL1,2 TRANSDUCERS
z) BKBL MOTOR-winding burnt, commutator failure, pig tail cut
aa) WATER ENTRY TO GRID
bb) FOREIGN BODY IN GRID
