Development and application project of 10kV closed circuit fuse appliance exchange without power-off

Reliability of power supply is one of the major indexes for a power supply enterprise to establish an international first-class company and it is discovered via statistics and analysis that defect handling of 10 KV fuse appliance is an important factor that affects the reliability of power supply from distribution network to users. In order to ensure the safe operation of distribution network and to improve power supply reliability, Jinshan Power Supply Branch has developed a technology for exchanging 10 KV closed circuit fuse appliance without power-off and has achieved good result after hard working and actual application for more than one month. This technology has successfully passed the appraisal conducted by the Live Line Work Development Co., Ltd. of Shanghai Municipal Electric Power Company before March 29, 2007 and Jinshan Power Supply Branch becomes the first company possessing such an appraised technology within Shanghai Municipal Electric Power Company.