摘要
笔者总结了示范工程中变压器现场局放交接试验的程序、标准、过程,分析了出现的问题,提出如下建议:①提高750 kV变压器的工频试验电压;②不宜反复进行局放试验;③现场试验局放超标时应务实处理;④重新定义局部放电起始电压和熄灭电压;⑤必要时采用可靠的在线监测设备。这些建议不限于750 kV变压器,亦可为1 000 kV变压器的现场交接试验参考。
This paper analyzes the problems concerning pro- cedure, standards, and process in the on-site acceptance partial-discharge（PD） test on the 750 kV transformers. Some suggestions are therefore offered as follows：（1）increase the power frequency withstand test voltage for 750 kV transformers; （2）avoid to perform PD test repeatedly;（3）take practical measures if PD quantity exceeds the criterion stated in standard; （4）redefine the PD inception voltage and extinction voltage; （5）use reliable on-line monitoring apparatus when necessary. These suggestions can also serve as a reference for the same test on 1 000 kV transformer.
出处
《高压电器》
EI
CAS
CSCD
北大核心
2007年第6期434-437,共4页
High Voltage Apparatus
关键词
变压器
局部放电
试验
transformer
partial discharge
test
