摘要
通过阐述停运1台主变运行方式的原理,探讨主变有功损耗和经济运行临界负载计算公式,根据电网实际运行数据对变电站采取不同运行方式进行损耗对比和效益分析。以湖南省永州地区为例,统计分析地区220kV各变电站负载情况,长时间轻载运行的变电站可在某些月份停运1台主变,计算因节省主变空载损耗而带来的经济效益,为地区电网的经济运行提供参考。
The paper expatiates the principle of a main transformer outage, and discusses the formula of main transformer active loss and economic load. According to the power grid operation data, the loss is compared and benefit is analyzed considering different operation mode of transformer substation. The paper gives example of Yongzhou in Hunan, making the statistical analysis of region 220 kV substation load. Considering shutting down a main transformer in certain months for the substation carrying light load in a long time, the paper calculates the economic benefits for saving the no-load loss for a main transformer, which provides references for economic operation of the regional power grid.
出处
《湖南电力》
2016年第4期13-17,共5页
Hunan Electric Power
关键词
主变压器
节能
降损
经济效益
电网安全
main transformer
energy conservation
loss reduction
economic benefits
grid security
