紫坪铺水力发电厂发变组保护装置改造

Transformation of Generator-transformer Unit Protection Device in Zipingpu Hydropower Plant

针对原发变组保护装置使用年限过长,电子元器件老化等问题,紫坪铺水力发电厂对发变组保护装置进行升级改造。经改造后,优化了保护配置,大幅提高了保护性能。同时,调试方便,动作可靠,减少了维护工作量和年维护费用,为我厂发变组设备的可靠运行提供了有利保障,也为今后设备改造提供了借鉴。

For problems of long service life and aging electronic components of primary generator-transformer unit protection device,the generator-transformer unit protection device is upgraded in Zipingpu Hydropower Plant. After transformation,the protection configuration is optimized and the protection performance is greatly improved. Besides,the debugging is convenient,the action is reliable,and the maintenance work and the annual maintenance cost are reduced. This provides a favorable guarantee for the reliable operation of the generator-transformer unit equipment in Zipingpu Hydropower Plant,and also gives a reference for the equipment transformation in the future.