摘要
本文对大型强油风冷循环变压器的风冷控制系统进行了分析,指出了运行中存在的缺陷及可能导致的严重后果。为达到提高变压器运行效率及保证电网安全可靠运行的目的,提出并研制了一套应急风冷电源,该应急风冷电源通过检修电源接入,绕开主变风冷控制系统,在主变风冷电源无法投入的情况下,手动启动应急电源系统,就能迅速恢复部分主变油泵及风扇运行,保证变压器安全运行。并将该应急风冷电源系统在安徽省某220 kV大型变压器上进行了安装实施。
The principle of forced-oil and forced-air cooling system of large transformer is analyzed. The defects in the control circuit and its potential serious consequence are discussed. In order to improve the efficiency of transformer and ensure safe and reliable of the power grid, a set of emergency air cooling power supply system is proposed. In case of no inputting of air cooling eontrul power, the emergency power supply system can quickly recover the operation part of the oil pump and fan, ensure the safe operation of transformer.
出处
《陕西电力》
2015年第5期37-40,共4页
Shanxi Electric Power
基金
国家自然科学基金项目(51407104)
关键词
变压器
强油风冷
控制回路
应急风冷电
transformer
forced-oil and forced-air cooling
control circuit
emergency air cooling power supply system
