GIS不停电交流耐压装置的研制及现场应用

交接试验中的交流耐压试验是开关类设备必须进行的试验项目,需要在停电的情况下进行。为了探索高压开关设备在不停电情况下的交流耐压试验方法,提出了一种同频同相交流耐压试验方法,并依据此原理设计了试验装置。研究表明:同频同相试验方法完全适用于现场不停电情况,所研制的试验装置通过了试验室不同异常情况下的考核,验证了该试验方法和装置的有效性,并成功地应用于现场耐压试验。

Development and Application for an AC Withstand Voltage Equipment Without Power Outage of GIS

Alternating Current (AC) withstand voltage test is indispensable in hand-over test procedures for switch apparatus, which must be done under the condition of power outages. To explore the way for the AC withstand voltage test without any power outage, the method using synchronized frequency and phase for AC withstand voltage was proposed, and a test device was designed based on the corresponding principle. The results demonstrated that this method is applicable to the substation without any power outage. The designed test device has passed the testing and assessment under different abnormal working conditions in the laboratory and then applied successfully for onsite testing such that its effectiveness is verified.