GE IS200EROCH1A IS200EROCH1ADD Exciter Regulator Board

Technical Specifications

The GE IS200EROCH1A (also IS200EROCH1ADD) manages generator excitation control for turbines. This board measures 30.5 cm in length and 25.4 cm in width. It weighs approximately 1.2 kg. The unit contains one main processor running at 300 MHz. A single 64-pin backplane connector links to the system. Additionally, the board features six pulse transformer outputs for thyristor firing. The GE IS200EROCH1A IS200EROCH1ADD stores 1 MB of regulation algorithms in flash memory. It also holds 512 KB of real-time operational data. This module uses no battery for energy storage.

Parameter	Specification
Brand	General Electric (GE)
Model	GE IS200EROCH1A IS200EROCH1ADD
Category	Exciter Regulator Board
Length	30.5 cm
Width	25.4 cm
Weight	~1.2 kg
Processor	One 300 MHz dedicated controller
Main Connector	One 64-pin backplane connector
Pulse Outputs	Six transformer-coupled channels
Flash Memory	1 MB regulation firmware
RAM	512 KB operational data
Energy Storage	None (battery-free)

Design and Integration

This GE IS200EROCH1A IS200EROCH1ADD regulates generator field current precisely. The six pulse outputs fire thyristors in a three-phase bridge configuration. Each channel provides isolated 5 V pulses at 1 A peak. Therefore, the board controls excitation smoothly across all load conditions. The processor executes PID algorithms every 2 milliseconds. Meanwhile, the board monitors field voltage and current continuously. For a similar protection device, see the RMS-TSG-TZ-C on Alibaba. However, that static trip relay handles overcurrent faults rather than excitation control.

Reliability and Operation

The GE IS200EROCH1A IS200EROCH1ADD operates from -30°C to +65°C. Its flash memory retains firmware without any external battery. Consequently, you avoid periodic memory maintenance tasks. The board meets GE’s voltage regulation accuracy of ±0.5%. Each unit undergoes 48-hour burn-in testing before shipping.