GE 962243400 Standby UAVR Board

The 962243400 is standby UAVR excitation regulator card for GE generator excitation cabinet, commonly called Standby Po Line board. This 962243400 serves as backup automatic voltage regulator for generator excitation system, working in hot standby mode with the main AVR, realizing bumpless transfer when main regulator fails. It controls excitation current to stabilize generator terminal voltage and reactive power output.

This 962243400 supports voltage regulation, VAR and power factor control, built-in V/Hz limiter, excitation upper/lower limit protection. It exchanges status and setpoint data with primary AVR via dedicated interconnection signal lines. Front LED indicators show power, run, fault and transfer status for on-site troubleshooting. Conformal coated PCB provides protection against dust and humidity in power plant excitation control cabinets. It matches the excitation rack of GE heavy-duty gas turbine and steam turbine generator sets.

The 962243400 is widely deployed in thermal power plants, combined cycle power stations and self-generation facilities with GE excitation systems. This legacy UAVR card is discontinued by GE. Most available 962243400 units are tested surplus spare parts for excitation cabinet overhaul and standby AVR replacement.