GW4-110隔离开关发热和处理研究.doc

GW4—110型户外隔离开关发热处理研究 俎洋辉 郑强 李新雷 李保军 （安阳供电公司，河南 安阳，455000） 摘要：户外隔离开关主要用来将高压配电装置中需要停电的部分与带电部分可靠地隔离，以保证检修工作的安全隔离开关还可以用来进行某些电路的切换操作，以改变系统的运行方式也可以用来操作一些小电流的电路，The outdoor type disconnecting switch of GW4—110 gives off heat and the processing research ZU Yang-hui ZHENG-Qiang LI Xin-lei LI Bao-jun (Anyang Power Supply Company, Anyang, Henan, 455000) Abstract: The outdoor insulation switch rises the very and important function in the whole charged barbed wire net, mainly using to go together with high pressure electricity to equip in the part that need to be have a power fail with take electricity part of insulate dependablely, with the guarantee and check and fix the safety of the work to open the exhibition, insulate the switch and can also use at the same time to carry on some electric circuits to cut over the operation, with the change movement method of the system, can also use to operate some electric circuits of small electric current, but because of insulating the switch to throw in the movement outdoors with long hours, because of the external world environmental of influence, the check fixs the extension and check of the period to fix the personnel to install not go to waits the factor, coming to a decision to insulate the switch at throw in to circulate a period of time after appear to have fever, turn on electricity to wait the phenomenon, make the charged barbed wire net exist the extremely insecure factor.Raise the movement credibility of insulate the switch, is an urgent matter of the moment that guarantees the electric power system safety, the stability movement.This text from insulate the yin that switch exist to suffer from commence, analyzed to insulate the switch to have fever the reason hard, and put forward to these reasons to solve to handle the method in a specific way. Key words: outdoors disconnecting switch maintenance interval contact surface contact resistance 0引言 GW4—110型隔离开关由于物理结构较为简单，操作灵活。所以在电力系统中运用极为广泛，近几年随着SF6断路器的广泛应用及变电设备由定期检修向状态