Product: GE IS200EGDMH1A IS200EGDMH1AAB IS200EGDMH1ADE Field Ground Detector Board

Description

GE IS200EGDMH1A is a Field Ground Detector Board,it is one of Ex2100 systems.

The EGDM detects leakage resistance to ground from any point in the field circuitstarting at the ac secondary windings of the input transformer, through the excitationsystem, and on the generator field.

The active detection system applies a low voltagewith respect to ground and monitors current flow through a high impedance groundresistor.

Grounds anywhere in the system can be detected even while the exciter isnot running (gating SCRs).
This field ground detector (patent pending) also features:

The ground detector voltage is sent over a fiber-optic link tothe EISB board for monitoring.

Constant sensitivity to grounds independent of operating voltages on the genera-tor field.

Constant sensitivity to grounds without regard to ground location in the genera-tor field.

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