GE IS200EGDMH1AGG – EX2100 Exciter Ground Detection Module

Technical Specifications

Overview

The IS200EGDMH1AGG Exciter Ground Detection Module is manufactured by GE Industrial Systems, the GE subsidiary responsible for the EX2100 Excitation Control Series. This module features multiple significant revisions, including two functional revisions (A and G) and an artwork revision (G), enhancing its performance and reliability.

Key Features and Functionality

• Ground Detection:
  Detects ground paths within exciter components connected to the main field wiring circuits.

• Mounting Location:
  Designed to be installed within the control power supply module inside the larger control system cabinet.

• Form Factor:
  Double-height, double-slot printed circuit board (PCB), suitable for modular system configurations.

• System Compatibility:

• Triple Modular Redundant (TMR) systems typically utilize three EGDM boards.

• Simplex systems usually employ only one EGDM module.

Hardware Highlights

• Sense Resistor:
  A central component responsible for ground detection, acting as a unity gain differential amplifier with high common-mode rejection.

• Signal Processing:
  The differential amplifier output is converted via a Voltage Controlled Oscillator (VCO) functioning as an A-to-D converter.

• Communication Interface:
  The converted signal is transmitted through a fiber-optic transmitter to the compatible EISB option board.

• Protection:
  All hardware components are encapsulated with a comprehensive conformal coating, providing superior environmental protection by fully covering every surface of the PCB components.

Additional Notes

This module is integral to the overall function of the EX2100 Excitation Control System, ensuring accurate ground detection and system reliability. Understanding its physical and functional characteristics is important when integrating into industrial control setups.