Overview

The GE IS200EHPAG1ADC is a gate pulse amplifier board integral to GE's EX2100 excitation control system. It amplifies gate pulses received from the ESEL logic board, converting them into high-voltage pulses that trigger up to six silicon-controlled rectifiers (SCRs). These SCRs regulate the generator field current, maintaining stable voltage output and enabling safe operation under varying load conditions.

The EHPAG1ADC board also includes conduction feedback monitoring and supports high-speed communication with the controller. Built for high-voltage industrial environments, it integrates seamlessly into excitation cabinets and contributes to system diagnostics and protection, preventing misfires and overheating.

This module is primarily used in steam, gas, and hydroelectric power plants, where precise SCR control and excitation reliability are crucial.

Technical Data

Typical Applications

• Generator Excitation Systems: Controls SCR firing to regulate field current for stable excitation.

• Power Bridge Interface: Serves as a gate driver between the controller and SCRs.

• Fault Monitoring and Protection: Offers conduction feedback and supports misfire detection to prevent overheating.

• Industrial Generator Control: Used in petrochemical, mining, and manufacturing sectors.

• System Retrofits: Compatible with legacy EX2100 installations for modernization.

Example: During generator startup, the EHPAG1ADC ensures synchronized SCR firing to establish stable excitation. Its fault monitoring features help protect the system from thermal stress and electrical anomalies.

FAQ

Q1: What does the IS200EHPAG1ADC board do?
A1: It amplifies gate pulses to control six SCRs in excitation systems.

Q2: Is it compatible with EX2100 systems?
A2: Yes, it integrates seamlessly with GE’s EX2100 excitation platform.

Q3: What voltage does it operate on?
A3: It uses a nominal 24 VDC input and accepts a range of 10–30 VDC.

Q4: How is it mounted?
A4: It is rack-mounted inside the excitation cabinet.

Q5: What industries use this module?
A5: Industries include power generation, oil & gas, and heavy manufacturing.