摘要
回路电阻测试是高压开关设备新安装(或检修后)投运前的必要电气测试项目,若开关主回路电阻超标,则该开关设备不得投运,否则可能引起开关内部温升过高而导致事故。阐述某高压开关回路电阻超标的发现、测试分析、判断和处理过程。
Loop resistance test is one of the necessary electrical test items before the new installation(or after maintenance)of high voltage switchgear putting into operation.If the main circuit resistance of the tested switchgear exceeds the standard value,the switchgear shall not be put into operation.Otherwise,it may cause internal temperature too high and lead to accidents.The discovery,test,analysis,judgment and treatment of a high voltage switch circuit resistance exceeding the standard were introduced.
引文
[1]GB/T 50150—2016电气装置安装工程电气设备交接试验标准[S].
[2]GB/T 11022—2011高压开关设备和控制设备标准的共用技术要求[S].
[3]DL/T 596—2015电力设备预防性试验规程[S].