Alternator , DG-Circuits , EOG Plant , LHBCoaches ,Plant circuits ,RMPU Circuit
POWER CAR CIRCUITS
DG Starting Circuit
SC
Starting coil magnetic switch before Self starter to activate self starter.
FSC
Solenoid valve for diesel fuel near Governor.
FSRO
Timer switch to disconnect self after a predetermined time.
CFR
Cooling failure Relay. Engine safety interlock achieved through this.
This relay protect engine from
1.Low oil pressure (Mobile).
2.High Temperature.
3.Over speed.
4.Alternator Earth fault.
LOP
Lubricating oil pressure low protection circuit.
ICLOP
Pressure switch (sensor) at Engine.
ICHT
Temperature switch(sensor) at Engine.
ICOS
Over speed switch at Engine.
AFR
Alternator failure relay. Protects from the following.
1.Under voltage.
2.Earth Fault.
3.Overload (ACB)
Engine RPM variation
Use Rise and Lower push button one at a time to raise or lower the RPM.
! DO NOT USE BOTH AT A TIME.
Throttle Motor is a 24 V DC motor fixed at Engine Governor.
AEL 1
Alternator Earth fault Relay.
UVR
Under voltage Relay.
FM
Frequency meter.
21 K19 : 24V Dc contactor which is on with main 24V control ON switch.
21 K5 and 21 K6 are plant selector interlock.
LHB POWER CAR