IS200EGDMH1AFG Overview

The Exciter Ground Detector Module General Electric IS200EGDMH1AFG is an Exciter Ground Detector Module designed for the EX2100 Excitation Control System. It monitors field-to-ground leakage resistance in generator circuits, supporting both simplex and redundant configurations to ensure safe and reliable power system operation.

Product Features

Control Logic: Receives programming signals to determine master module and generates test commands synchronized with oscillator signals.

Test Signal Generation: Produces a non-retriggerable 250 ms test signal per command for precise leakage detection.

Power Conversion: Converts 24 VDC input to isolated +5 VDC/+15 VDC and non-isolated +65 VDC for signal conditioning and amplification.

Output Performance: Provides a low-impedance (<1Ω) square-wave output at +50V with current limiting for reliable field testing.

FAQ

Q1: What is the primary purpose of the IS200EGDMH1AFG module?

A: It is an Exciter Ground Detector Module designed to monitor and detect insulation leakage resistance between the generator field circuit and ground in GE EX2100 excitation control systems.

Q2: How does this module support system redundancy?

A: In redundant configurations, three modules operate as Controller (C), Master 1 (M1), and Master 2 (M2), with dynamic master selection controlled via programming pins on the P2 connector.

Q3: What test signals does the module generate for ground detection?

A: It produces a +50V square-wave test signal with a 250 ms duration, triggered by oscillator transitions to accurately measure field circuit insulation conditions.