华电技术 ›› 2010, Vol. 32 ›› Issue (9): 68-70.

• 技术交流 • 上一篇    下一篇

关口计量误差分析与技改实践

章海峰,明强,朱启华,俞开红   

  1. 贵州大方发电有限公司,贵州大方551600
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-09-25 发布日期:2010-09-25

Analysis of gateway energy metering error and technical reformation practice

ZHANG Haifeng, MING Qiang, ZHU Qihua, YU Kaihong   

  1. Guizhou Dafang Power Generation Corporation Limited, Dafang 551600, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-09-25 Published:2010-09-25

摘要: 针对关口计量系统非正常计量误差的问题,深入分析了产生此类问题的原因,从多方面排查了可能存在的问题。采取了新增一组专用电流互感器、校验电压互感器综合误差、就地安装关口计量箱、减小电压互感器二次压降等措施,解决了长期存在的非正常误差的问题,挽回了经济损失。

关键词: 计量误差, 问题排查, 原因分析, 整改措施

Abstract: Aiming at the abnormal metering error of gateway metering system, the reasons caused the abnormal error were analyzed in depth, and the potential problems were investigated from different respects. Some improvement measures were adopted, which include adding a set of special current transformers (CT), testing the comprehensive error of the voltage transformers (PT), installing the gateway metering box near with the voltage transformers to reduce the secondary voltage drop of PT and others. Then the abnormal metering error, which existed in long term, had been eliminated, and large amount of economical losses was retrieved. 

Key words: metering error, problems investigation, reason analysis, improvement measures