General Electric IS200EPSMG2A Exciter Power Supply Module

The GE IS200EPSMG2A is an Exciter Power Supply Module designed for integration into GE’s Mark VI and Mark VIe excitation control platforms. This module plays a vital role in supplying regulated low-voltage DC power to various control and interface components within a synchronous generator excitation system.

As part of the exciter control infrastructure, the IS200EPSMG2A is responsible for converting AC input power into multiple stable DC outputs used to energize terminal boards, signal processors, communication modules, and system relays. The module features high-efficiency switch-mode power conversion and multiple built-in protection mechanisms, ensuring long-term operational stability even in demanding industrial environments.

Its compact form factor and plug-in design allow for quick installation, minimal downtime during maintenance, and seamless integration into existing GE turbine control cabinets. The EPSMG2A is well-suited for both new builds and system upgrades across a wide spectrum of industrial and power generation applications.

Technical Specifications

Product Applications

The GE IS200EPSMG2A is a versatile power module designed to support a wide range of electrical and control functions in industrial environments. Its applications include:

• Excitation System Power Source

  Provides stable power to Mark VI/VIe exciter control elements including I/O modules, digital processors, and communication boards.

• Synchronous Generator Control Systems

  Delivers critical DC power to control the magnetic field in synchronous machines, ensuring stable generator output.

• Power Plants and Turbine Generators

  Used in thermal, hydro, and gas turbine facilities to power the excitation control section of the generator system.

• Industrial Control Cabinets

  Deployed in modular rack assemblies to distribute regulated power to subcomponents in electrical control infrastructure.

• Backup Power in Redundant Systems

  Supports hot-swappable and redundant power setups in mission-critical installations.

• GE Retrofit Projects

  Ideal for replacing aging modules in legacy GE control systems without requiring architectural changes.

Product Advantages

• High Electrical Reliability

  Designed with low-ripple voltage outputs and high voltage accuracy to protect sensitive electronic circuits.

• Integrated Protection Features

  Includes built-in thermal, short circuit, and overvoltage safeguards that enhance operational safety.

• Simple Maintenance and Monitoring

  LED indicators on the faceplate display voltage status, assisting with real-time diagnostics.

• Compact and Modular Design

  Small form factor enables space-saving installation and easy integration into existing GE system racks.

• Versatile DC Output Support

  Offers multiple regulated DC voltages to power a range of subsystem components within the excitation framework.

• Industrial Durability

  Built to withstand temperature extremes, electrical noise, and vibration typically found in power generation environments.

Frequently Asked Questions (FAQ)

1. What systems is the IS200EPSMG2A compatible with?

It is designed specifically for GE Mark VI and Mark VIe excitation control systems.

2. What input voltage does it support?

The module supports a wide range of input voltages from 100 to 240 VAC at 50/60 Hz.

3. How many DC voltage outputs are available?

There are four regulated outputs: +5VDC, +15VDC, +24VDC, and -15VDC.

4. Can this module be hot-swapped during operation?

Yes, in systems with redundant power modules, it can be replaced while powered on.

5. What kind of protection features does it include?

It offers thermal shutdown, overvoltage protection, and short-circuit prevention.

6. Is the EPSMG2A a programmable device?

No, it is a fixed-output regulated power supply module without programming capabilities.

7. Are there LED indicators for fault diagnostics?

Yes, colored LEDs indicate the status of each output rail, assisting with on-site troubleshooting.

8. What cooling method is used?

It uses passive convection cooling and does not require a fan.

9. How long does the module typically last?

While lifespan depends on environmental conditions, GE modules are known for long-term reliability in field use.

10. Can it be used in third-party systems?

Technically yes, but it’s specifically engineered for GE control environments, and integration elsewhere may require adjustments.