292B930A10
Model 292B930A10 is a Westinghouse HCB pilot wire sensitive relay belonging to 292 series plug-in relay product line, originally produced by Westinghouse/Cutler Hammer for power system protection and Ovation DCS auxiliary control system. This pilot wire protection relay is specially designed for transmission line pilot wire differential protection, widely installed in substation, thermal power plant and power grid protection cabinet to detect fault signals on pilot connecting wire and execute protection trip or interlock switching command automatically when abnormal line condition occurs.
Description
1. Product Introduction
Model 292B930A10 is a Westinghouse HCB pilot wire sensitive relay belonging to 292 series plug-in relay product line, originally produced by Westinghouse/Cutler Hammer for power system protection and Ovation DCS auxiliary control system. This pilot wire protection relay is specially designed for transmission line pilot wire differential protection, widely installed in substation, thermal power plant and power grid protection cabinet to detect fault signals on pilot connecting wire and execute protection trip or interlock switching command automatically when abnormal line condition occurs.
It features low coil power sensitive pickup design with enclosed transparent shell and standard plug-in socket mounting structure matching unified 292 series base, built-in anti-surge and anti-interference components to adapt severe electromagnetic environment inside power control cabinet. Front housing reserves observation window to check internal contact action status directly without disassembly, supporting long-term uninterrupted 24-hour continuous operation under industrial cabinet ambient conditions and conforming to UL, CE and IEC power protection component certification standards.
2. Technical Specifications
Standard rated coil operating voltage is DC125V as factory default option, with optional DC48V coil version available upon customized order. The relay adopts high-sensitivity coil design with ultra-low pickup operating power to capture faint abnormal current signal from pilot protection wire efficiently. Internal contact structure is DPDT double-pole double-throw configuration, and rated contact load capacity reaches AC250V 5A or DC125V 5A for control loop switching.
Working ambient temperature for cabinet installation ranges from 0 degree Celsius to 60 degree Celsius, while storage temperature covers minus 40 degree Celsius up to positive 85 degree Celsius. Applicable working relative humidity maintains 5% to 95% without condensation on relay body. Overall outer dimension follows unified dimensional standard of Westinghouse 292 series relay, realizing interchangeable replacement with other models of same series on original installation rack directly.
3. Application Field
Main application covers power grid transmission line pilot wire differential protection loop, generator auxiliary protection circuit, substation relay protection cabinet and large power plant boiler & turbine safety interlock control circuit, serving as core sensitive signal detection and protection execution component for power system primary equipment safety protection.
Get a Quote