Product Details

ABB UBC717BE101 3BHE021887R0101 is an OVVP overvoltage protection board for ABB UNITROL generator excitation systems and AC800PEC power electronic control platforms. The OVVP overvoltage protection board monitors the voltage status of power conversion circuits in real time. When abnormal overvoltage occurs, it triggers fast protection actions to suppress voltage spikes and prevent high voltage from damaging core power modules and control hardware. This ABB UBC717BE101 board is equipped with high-speed voltage detection circuits and opto-isolated signal interfaces, which can quickly capture transient voltage fluctuations and transmit fault signals to the main processor module. The UNITROL excitation system board has built-in self-diagnostic function and LED status indicators, which can continuously monitor communication link quality and internal circuit operating status, and output fault alarm information for fast on-site maintenance. It adopts conformal coating treatment to improve resistance to moisture, dust and vibration, maintaining stable operation in harsh power plant cabinet environments. Widely used in large generator UNITROL excitation cabinets, medium voltage frequency converters and power quality control equipment, it is critical spare part for power electronic system daily maintenance, upgrade and renovation. Rack plug-in structure enables convenient installation and quick field replacement.

Parameters and Specifications

Brand: ABB

Model: UBC717BE101 3BHE021887R0101

Product Type: OVVP Overvoltage Protection Board

Compatible System: ABB UNITROL excitation system, AC800PEC power converter platform

Function: Real-time voltage monitoring, overvoltage detection, fast protection trigger

Isolation: Opto signal isolation

Feature: Built-in self-diagnosis, LED status indicator, conformal coating

Power Supply: 24V DC

Operating Temperature: -20°C ~ +70°C

Protection Class: IP20

Condition: New or tested used spare parts