GE IS200EROCH1ABB Exciter Regulator Options Card

Technical Specifications

Model: IS200EROCH1ABB

Brand: GE（GE Vernova）

Product Type: Exciter regulator options control board

Matching System: GE Speedtronic Mark VI turbine control system, EX2100 generator excitation regulator

Power Supply: 24VDC rack power supply, working voltage 22.5‑28.5VDC

Bus Interface: VME backplane connector for data interaction with main controller

Function: Excitation control algorithm processing, field‑current signal conditioning, trigger command output

Signal Processing: Analog signal acquisition, logic operation, pulse trigger signal transmission

Indicator: On‑board LED indicators for module running status and fault alarm

Installation: Mark VI VME rack plug‑in installation

Operating Temperature:‑40℃ ~ +70℃, non‑condensing

Humidity:5%‑95% non‑condensing

Protection Class:IP20

Weight:0.74kg

Dimension:265mm ×145mm ×23mm

Compatible System: Gas‑steam turbine, synchronous generator EX2100 excitation cabinet

Core Function

Exciter regulator options card for Mark VI and EX2100 excitation system. It undertakes partial excitation control algorithm calculation, collects field‑current feedback signals, completes signal conditioning and conversion, and sends trigger control commands to power drive units. It communicates with main CPU through VME backplane bus, participates in generator voltage closed‑loop regulation and excitation fault protection logic. Supports simplex and TMR triple‑modular redundant architecture, ensures stable excitation output for synchronous generator under grid fluctuation and load variation.

Product Details

The IS200EROCH1ABB is EROC series exciter regulator options board for GE Speedtronic Mark VI and EX2100 excitation control system.

This VME rack‑mount board works cooperatively with main controller and power drive boards inside excitation cabinet. It processes feedback signals from generator excitation loop, executes partial excitation regulation algorithms, and generates trigger signals to control power unit operation. It realizes real‑time closed‑loop adjustment of generator field current, stabilizing generator terminal voltage. On‑board LED status indicators help maintenance personnel observe module operating state and locate internal faults rapidly. Conformal coated circuit board improves anti‑vibration, moisture‑proof and anti‑electromagnetic‑interference performance, adapts to high‑noise and harsh working environment of power plant excitation cabinet. Widely deployed in simplex and TMR triple‑modular redundant generator excitation control cabinets for gas‑steam turbine units.

It belongs to key excitation control spare‑part for EX2100 excitation system, widely used in overhaul and renovation projects of power generation units.

It is important spare hardware for excitation regulator loop debugging and defective IS200EROCH1ABB board replacement.