GE IS200ERRRH1A Exciter Regulator Redundant Relay Board

Overview

The GE IS200ERRRH1A is a redundant exciter regulator relay board. It operates in the EX2100 excitation control system. The board drives and monitors the K41 relay to maintain precise voltage regulation. It also drives the K5T module transfer relay to switch control between redundant modules. Furthermore, it manages the module transfer SCR to regulate excitation power output. The board monitors bridge voltage feedback to ensure SCR bridge stability and system reliability.

Technical Specifications

• Relay Control: Drives K41 relay for excitation voltage regulation.
• Input Voltage Compatibility: 24V DC / 48V DC / 125V DC (software selectable).
• Response Time: Updates status in <10 ms after contact activation.
• Isolation Protection: 1500V AC isolation, IEC 61000-4-5 Level 3 surge protection.
• Operating Temperature: −40°C to +70°C without performance degradation.
• Vibration Resistance: 10g @ 10–2000 Hz.
• Mounting: DIN rail installation.
• Input Type: Dry contact (passive contact).
• Channel Configuration: Single-channel design for basic monitoring.
• Diagnostics:
  • Provides real-time contact status feedback (<20 ms accuracy).
  • Detects open-circuit conditions (<200 ms response).
  • Offers basic status reporting via ToolboxST.
  • Covers up to 85% of diagnostic scenarios.