GE IS200EGDMH1AAB Exciter Ground Detector Module

GE IS200EGDMH1AAB Exciter Ground Detector Module

Product Details:

The GE IS200EGDMH1AAB is an Exciter Ground Detector Module, specialized in monitoring excitation systems for ground faults. Its core function is to detect unintended electrical connections between live exciter circuit components and ground, a critical safety measure in high-voltage industrial setups.

Equipped with sensitive detection circuitry, it identifies even subtle ground faults, triggering alerts or protective actions to prevent equipment damage or safety hazards. Compatible with GE’s excitation systems, it integrates seamlessly into control architectures, ensuring continuous monitoring in harsh environments like power plants or turbine facilities.

Feature:

Field Ground Detection: The main function is to detect the field leakage resistance between any point in the generator field circuit and the ground, covering both the AC and DC sides of the circuit, and is intended to identify abnormal leakage that may pose a safety hazard or affect system integrity.

System Configuration: In a simplex system configuration, a single EGDM module is used for ground detection; in a redundant system setup designed to increase reliability, three EGDM modules are used to ensure a strong ground fault detection capability for the generator field circuit.

EXAM Module Interaction: The ground detection module cooperates with the excitation amplifier module. The EXAM module acts as an attenuator to detect the voltage across the ground detection resistor. The voltage signal is transmitted through a dedicated nine-core cable; the EXAM module is located in the high-voltage module of the auxiliary panel.

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