变电站主变低压侧母线桥绝缘防护措施改进  

The Improvement of Protective Measures of the Main Transformer Low Voltage Side Busbar Bridge Insulation of the Transformer Substation

作　　者：周刚 蔡亚楠 许路广 王聃 周冰 ZHOU Gang;CAI Ya-nan;XU Lu-guang;WANG Pin;ZHOU Bing(State Grid Jiaxing Power Supply Company,Zhejiang Electric Power Co.Ltd.,Jiaxing 314001,China)

机构地区：[1]国网浙江省电力有限公司嘉兴供电公司,浙江嘉兴314001

出　　处：《电气开关》2020年第2期106-108,共3页Electric Switchgear

摘　　要：变压器是电网中的重要设备之一,其低压侧与开关柜母线通常采用母线桥连接。裸露部分采用加装绝缘热缩套方式来提高母线的绝缘性能,但绝缘热缩套存在施工工艺复杂、易受损脱落、维护周期长、防小动物措施不完善等问题。针对此问题,提出涂制阻燃性绝缘涂层方法改进母线桥的绝缘防护能力。经现场应用验证,采用绝缘涂层能避免主变母线桥短路、放电等安全事故的发生,有效提高绝缘防护能力,保证电网的安全稳定运行。Transformers are one of the important equipment in electric networks.Its low voltage side and switch whicle busbars are usually connected by busbar bridge.The unccwered parts are adopted insulating termal shrinkable drivepipe way to increase busbar insulating propery,but the insulating termal strinkable drivepope is of technique complex under coustruction and easy to be damaged to drop,long service period and imperfect measures to prevent small animals.On these problems,the paper puts forward coating fire resistance insulating coating way to improve insulated protective ability of the busbar loridges.The field verification shous that the insulated coating can avoid main busbar bridges to be shorted,discharge acccidents huppen,effectively increase insulating protective ability and ensure the network safety operation.

关 键 词：绝缘防护 阻燃性绝缘涂层 防小动物 

分 类 号：TM63[电气工程—电力系统及自动化]