I/O modules

The GE IS200EXAMG1AAB provides critical signal conditioning within turbine management systems. This module serves as an Exciter Attenuation Module in GE’s Speedtronic Mark VI series. It accurately processes and scales high-voltage exciter signals for the control system. Plant engineers therefore rely on it to ensure reliable and precise turbine speed monitoring and protection.

Engineered for the demanding power generation environment, this board ensures signal integrity and system safety. Moreover, it interfaces seamlessly with other Mark VI components like the IS200ERMG1A regulator module. Consequently, operators maintain optimal control over turbine startup, synchronization, and load operations. The IS200EXAMG1AAB is a vital component for the safe and efficient management of gas or steam turbines.

Detailed Technical Specifications

The functionality of the IS200EXAMG1AAB is defined by its electrical input/output characteristics and physical design. For installation and maintenance, always consult the official GE Speedtronic documentation.

Technical Specifications:

• Manufacturer: General Electric (GE)

• Product Type: Exciter Attenuation Module

• Series: Speedtronic Mark VI Turbine Control System

• Part Number: IS200EXAMG1AAB

• Primary Function: Conditions and attenuates exciter feedback signals

• Input Signal: High-voltage AC from the exciter (typical 200V AC)

• Output Signal: Low-voltage, scaled analog signal for the controller

• Board Type: Printed Circuit Board (PCB) with modular connector

• Connector Type: Standard GE Mark VI series backplane connector

• Key Components: Precision resistors, voltage dividers, filtering circuits

• Operating Power: Derived from the Mark VI rack (+5V, ±15V DC)

• Mounting: Designed for VME-style rack installation in a Turbine Control Unit (TCU)

Design and Functional Role

This module acts as a crucial interface between the turbine’s high-energy exciter circuit and the sensitive control electronics. It receives a raw, high-voltage alternating current signal directly from the exciter. The board then safely attenuates and filters this signal to a precise, low-voltage level. Subsequently, the conditioned signal feeds into the main controller for accurate speed calculation and protection algorithms.

Furthermore, its design focuses on safety, reliability, and noise immunity for critical protection functions. The board contains no internal energy storage, such as batteries or large capacitors. Additionally, all operational power comes directly from the controlled and filtered supply of the Mark VI rack. This design philosophy ensures stable operation and enhances the overall robustness of the turbine control system, helping to prevent false trips and ensure reliable power generation.

Details