50Hz Single Phase Front-Mounted Equipment Receptacles And Circuit Breakers With Feeder Circuit Ground Fault Circuit Interrupters (Gfci) - Optional Receptacles - Vanguard CPW 125-4-S Series Operation And Maintenance Manual

50Hz Single Phase Front-Mounted Equipment Receptacles and Circuit Breakers with Feeder
Circuit Ground Fault Circuit Interrupters (GFCI) — Optional Receptacles
60Hz panel shown. Contact Vanguard
for available 50 Hz front panels.
Figure 35: 50 Hz Single Phase Front-Mounted Equipment Receptacles and Circuit Breakers with Feeder Circuit Ground
Fault Circuit Interrupters (GFCI)
Each of the 50Hz single phase equipment circuit breakers energizes one of the dedicated 50Hz single phase receptacles,
available optional receptacle plates, on the front of the control/distribution center. Refer to the Genset Frequency
Configuration—50Hz Mode in the Maintenance and Lubrication section of this manual for 50Hz configuration set-up
instructions. Each circuit breaker will independently trip if an over current condition arises in its dedicated circuit.
Each of the 50Hz single phase equipment supply-power buss circuit is protected by a feeder circuit breaker, CB 22 and CB
23. The individual feeder circuit breaker CB 22 or CB 23 will trip if the combined load results in an over current condition
in its dedicated circuit. Each of the individual feeder circuit breakers, CB 22 and CB 23, incorporates a Ground Fault Circuit
Interrupter (GFCI). A GFCI is a device whose function is to interrupt the electric circuit to a load when a fault current to
ground exceeds a predetermined value, that is less than that required to operate the over current protective device of the
supply circuit.
GFCIs are designed to shut off electric power when the current going into the electric equipment does not equal the amount
of current returning to the GFCI. A GFCI interrupts the unbalanced current flow in a fraction of a second, to prevent
electrocution. GFCIs only protect against unbalanced current flow type faults, some current must be returned through
037-08OP-002D-01
50Hz, Single
Phase circuit
breakers,
CB17 - CB 23
037-05-63-311B
S/N CB50600021 – UP (Weld-deck)
CB17
CB18
CB19
CB20
CB21
CB22
(GFCI)
CB23
(GFCI)
037-05-63-314A
52