Description

GE IS200ESYSH1AAA ESYS Exciter I/O Interface Board

Technical Specifications

• Product Model: IS200ESYSH1AAA
• Brand: GE (Baker Hughes Speedtronic Mark VI / Mark VIe, EX2100e Excitation System)
• Warranty: One Year
• Input Voltage: 5 VDC backplane power; 24 VDC field auxiliary (18‑30 VDC)
• Operating Temperature: 0 °C ~ +55 °C rack‑mount
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Excitation loop update cycle ≤4 ms
• Protection Class: IP20, cabinet‑only indoor installation
• Accuracy Class: PT/CT measurement ±0.25 % FS
• Output Frequency: Supports system nominal frequency 45‑65 Hz
• Rated Current: CT sensing input 1 A / 5 A configurable; relay contacts rated 5 A @250 VAC
• Signal Channels: 4‑channel PT voltage inputs; 2‑channel CT current inputs; multiple programmable trip relay outputs; digital status I/O
• Galvanic Isolation: Field instrument side vs system backplane 1500 VAC isolation rating
• Communication: Internal Mark‑VI backplane bus for EX2100e excitation controller data exchange
• Diagnostics: PT/CT circuit fault detection, relay supervision, front‑panel LED status indicators, fault event logging
• Mounting: Standard IS200‑series Mark VI rack slot form‑factor
• Dimensions / Weight: 234 mm × 160 mm × 30 mm; approx 0.65 kg
• 

Product Overview

The IS200ESYSH1AAA is the ESYS exciter I/O interface board for GE EX2100e generator excitation control system under Mark VI / Mark VIe turbine control platform. It acquires three‑phase voltage and current signals from generator PT and CT instrument transformers, implements signal conditioning, and delivers measured values to the excitation controller for automatic voltage regulation, reactive‑power control and generator‑synchronization logic. Programmable trip relay outputs execute protective shutdown commands for excitation system faults. Built‑in circuit diagnostics detect transformer‑loop failures and contact anomalies, feeding alarm information back to the main turbine control system. High‑grade isolation protects the control rack from field‑side surges and ground‑loop noise, delivering stable performance in heavy‑EMI power‑plant combined‑cycle cabinet environments.

This exciter interface board addresses generator excitation‑control signal‑interface challenges: dedicated PT/CT measurement for generator regulation, integrated protective relay outputs, comprehensive loop diagnostics, drop‑in spare‑part compatibility for legacy EX2100e / Mark‑VI‑series retrofit‑maintenance projects. Power‑system and turbine‑control engineers, power‑plant maintenance technicians and retrofit integrators benefit most. Typical applications: gas‑turbine and steam‑turbine generator excitation control cabinets, combined‑cycle power‑plant AVR and synchronisation supervision systems.