GE IS200EDEXG1ADA-1 GE IS200EDEXG1ADA-2 GE IS200EDEXG1ADA-4 GE IS200EDEXG1ADA-3

The GE IS200EDEXG1ADA is a high-reliability Exciter De-Excitation Module used in GE EX2100 excitation control systems. It is designed to safely dissipate stored magnetic energy in a generator field during shutdown or fault conditions, ensuring protection of turbine-generator systems.

This module is a core part of GE’s de-excitation architecture, coordinating SCR firing paths, voltage retention, and conduction feedback to guarantee controlled energy discharge. In industrial power plants, it is essential for preventing overvoltage damage and ensuring safe turbine shutdown sequences.

Technical Specifications

Parameter	Details
Manufacturer	General Electric (GE)
Model Number	IS200EDEXG1ADA
Module Type	Exciter De-Excitation Board
System Series	EX2100 Excitation Control System
Function	SCR de-excitation, field energy discharge control
Control Method	SCR firing + conduction sensing feedback
Input Power	24 VDC (from ESPM module)
Converted Output	125 VDC internal operation rail
Protection Features	Voltage retention, overvoltage firing, fault handling
Sensor Type	Hall effect conduction sensors
Operating Temperature	-40°C to +70°C
Dimensions	16 × 16 × 12 cm
Weight	~0.8 kg
Installation Type	Auxiliary cabinet / EX2100 rack system

Recommended Related Models

To ensure full excitation system functionality, this module is commonly paired with:

IS200EXAMG Exciter Attenuation Module
IS200EGDM Ground Detector Module
IS200EPDM Power Distribution Module
IS200EXTB Control Interface Board

Popular GE EX2100 De-Excitation Modules

Frequently used related components include:

IS200EDEXG1A / G1B variants
IS200EDEXG1AFA and G1BFA revisions
IS200EXAMG excitation attenuation modules
IS200EGDM ground detection modules
EX2100 excitation control platform boards

Applications

The IS200EDEXG1ADA is widely used in high-energy industrial and power generation systems:

Gas turbine generator shutdown systems
Steam turbine excitation control
Combined-cycle power plants
Industrial generator protection systems
Grid stability and voltage control systems

Advantages

This module delivers strong performance in mission-critical excitation systems:

Safe and controlled dissipation of generator field energy
SCR-based fast de-excitation during shutdown or faults
Reliable conduction sensing for system feedback accuracy
Strong protection against overvoltage conditions
Stable operation in harsh industrial environments
Seamless integration with GE EX2100 control architecture

Technical FAQs

What is the main function of IS200EDEXG1ADA?
It safely dissipates generator field energy during shutdown or fault conditions.
Which system is it used in?
GE EX2100 excitation control system.
How does it perform de-excitation?
Through SCR firing circuits and controlled discharge paths.
Does it support fault protection?
Yes, including overvoltage firing and voltage retention logic.
What is its operating temperature range?
-40°C to +70°C
What are its physical dimensions?
16 × 16 × 12 cm
What is its weight?
Approximately 0.8 kg
What sensors does it use?
Hall effect conduction sensors for field current monitoring.
Where is it installed?
In EX2100 auxiliary cabinets or excitation racks.
What industries use it most?
Power generation, oil & gas, and heavy industrial energy systems.