摘要
结合线路检修,对某区域电网关口在运互感器进行大规模误差测试,介绍一种利用EXCEL软件批量计算大量互感器合成误差的方法,分析评估大区电网关口互感器整体计量准确性状况,考察互感器合成误差对厂网贸易结算造成的经济影响,探讨了改善措施,避免大规模系统性误差造成的关口计量不公。实测分析表明应从多方面控制在运互感器合成误差,保障贸易公平。
Have power cut dispatching through system analysis of line inspection. Test the error of instrument transformers in service at power exchange point in great electric power grid widespread. Batch calculates the composite error using EXCEL. Analyze and evaluate the integral status about metering accuracy of transformers. The economical affection caused by composite error of transformer is considered and improving method is discussed. Therefore, wrongful dealing at the power exchange point in electric power grid due to large-scale system error is avoided. It＇s indicated through testing and analyzing that various methods should be adopted to control the resultant error, so that trade fair is assured.
出处
《电测与仪表》
北大核心
2009年第9期35-38,71,共5页
Electrical Measurement & Instrumentation
关键词
电网关口
互感器
合成误差
经济影响
power exchange point in electric power grid, instrument transformer, composite error, economical affection.
