ABB 3BHE005555R0101 Synchronization Module

Feature & Principle

It is ABB LDSYN-101 synchronization check module used in power automation systems. It samples voltage signals from two sides of the circuit, calculates frequency deviation and phase angle difference. It will release closing permission only when all parameters are within preset safe thresholds, preventing asynchronous closing and heavy inrush current which may damage generators and grid equipment. It provides relay output and status diagnosis signals for protection and control cabinets.

Specifications

Model: 3BHE005555R0101 (LDSYN-101) Brand: ABB Function: Synchronization check for generator paralleling Signal input: AC voltage signals Output: Relay contact signal Installation: Rack plug-in module Application: Power plant, substation, microgrid and generator control cabinet Certification: CE

Components & Diagnostics

Signal sampling circuit, CPU processing unit, relay output assembly, status LED indicators, backplane connector. Common faults: signal sampling failure, relay contact burnout, parameter drift, communication anomaly.

Product Brief

3BHE005555R0101 synchronization check module, ABB power system control spare widely used for generator paralleling cabinet overhaul and replacement.