110kV单母线分三段系统的PT并列切换装置升级技术探讨  

Discussion on Upgrading Technology of PT Parallel Switching Device for 110 kV Single-bus Three-section System

作　　者：徐勇军 XU Yongjun(Guizhou Qianyuan Electric Power Co.,Anshun 562100,Guizhou,China)

机构地区：[1]贵州黔源电力股份有限公司普定发电公司,贵州安顺562100

出　　处：《电气传动自动化》2022年第5期26-28,共3页Electric Drive Automation

摘　　要：某电站110kV采用单母线分三段接线方式,由于电站原始设计和地理位置受限,仅在110kVI段母线和III段母线设置电压互感器,导致110kVII段母线设备使用的保护、测量、计量二次电压只能由110kVI段母线电压互感器或III段母线电压互感器供给,这使发电公司110kV电压互感器并列切换装置的设计不同于常规单母线分段的PT并列装置设计。原发电公司电磁型110kV电压互感器并列切换系统采用自主设计和安装的系统,该系统存在电压监视功能不完善等缺陷;在保证设计原理不变的前提下,将该系统进行升级成微机型110kV电压互感器并列切换系统。The power station adopts single bus three-section connection mode,because of the original design and limited geographical position of the power station, only 110kVI bus and III bus are installed with voltage transformers, as a result, the secondary voltage for protection, measurement and measurement of the 110KVII bus equipment can only be supplied by the 110kVI bus or the III bus voltage transformers, this makes the design of the110 kv voltage transformer parallel switching device of power generation company different from the design of the conventional single bus segment PT parallel device. The original electromagnetic 110kV voltage transformer parallel switching system of.The power station adopted self-designed and installed system, which has some defects such as imperfect voltage monitoring function under the premise of guaranteeing the design principle unchanged,will upgrade the system into microcomputer-based 110kV voltage transformer side-by-side switching system.

关 键 词：单母线分三段 电磁型110kV电压互感器并列切换系统 微机型110kV电压互感器并列切换系统 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]