GE IS200SCNVG1A IS200SCNVG1ADC Bridge Control Board

Technical Specifications

The GE IS200SCNVG1A (also IS200SCNVG1ADC) manages thyristor firing for generator excitation systems. This board measures 30.5 cm in length and 25.4 cm in width. It weighs approximately 1.2 kg. The unit contains six pulse transformer outputs for SCR bridge control. A single 64-pin backplane connector provides system interface. Additionally, the board features six LED indicators for firing status monitoring. The GE IS200SCNVG1A IS200SCNVG1ADC stores 256 KB of firing angle tables in flash memory. It also holds 64 KB of operational data for real-time adjustments. This module uses no battery for energy storage.

Parameter	Specification
Brand	General Electric (GE)
Model	GE IS200SCNVG1A IS200SCNVG1ADC
Category	SCR Bridge Control Board
Length	30.5 cm
Width	25.4 cm
Weight	~1.2 kg
Pulse Outputs	Six transformer-coupled channels
Main Connector	One 64-pin backplane connector
Status LEDs	Six firing indicators
Flash Memory	256 KB firing angle tables
RAM	64 KB operational data
Energy Storage	None (battery-free)
Output Pulse	5 V at 1 A peak

Design and Integration

This GE IS200SCNVG1A IS200SCNVG1ADC fires thyristors in three-phase full bridges. The six pulse outputs drive each SCR with precise timing. A phase-locked loop synchronizes firing with the AC line. Therefore, the board controls excitation current smoothly from zero to full output. The processor calculates firing angles every 2 milliseconds. Meanwhile, the six LEDs show each SCR’s firing status at a glance. For a similar control component, see the RMS-TSG-TZ-C on Alibaba. However, that static trip relay handles protection rather than SCR firing.

Reliability and Operation

The GE IS200SCNVG1A IS200SCNVG1ADC operates from -30°C to +60°C. Its flash memory retains firing tables without any external battery. Consequently, you avoid periodic maintenance for memory backup. The board meets GE’s firing accuracy of ±0.5 degrees. Each unit undergoes 72-hour continuous pulse testing before shipping.