Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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电厂电流互感器基建期调试方法研究

来源:电工电气发布时间:2020-10-23 15:23浏览次数:539
电厂电流互感器基建期调试方法研究
 
王思聪,罗凯,张清
(中国大唐集团科学技术研究院有限公司西北电力试验研究院,陕西 西安 710021)
 
    摘 要:对于新建、扩建发电机组,在基建调试过程中必须对电流互感器(CT)的变比、准确级、接线、极性等进行检查确认。对调试过程中极性判别及接线检查、伏安特性及10%误差曲线校核、倒送电及整套启动过程CT检查进行了原理分析,并给出了具体调试步骤,确保CT的接线、极性等完全正确。
    关键词:基建调试;电流互感器;极性检查
    中图分类号:TM452     文献标识码:A     文章编号:1007-3175(2020)10-0051-04
 
Study on the Commissioning Method of Current Transformer in the Construction Period of Power Plant
 
WANG Si-cong, LUO Kai, ZHANG Qing
(China Datang Corporation Science and Technology Research Institute Co.,Ltd,
Datang Northwest Electric Power Test & Research Institute, Xi'an 710021, China)
 
    Abstract: For the newly built and expanded generator sets, the transformation ratio, accuracy level, wiring, polarity of current transformer(CT) must be checked and confirmed during the process of infrastructure commissioning.The principle analysis of polarity discrimination and wiring inspection, volt-ampere characteristics and 10% error curve verification, reverse power transmission and CT inspection of the entire start-up process during the debugging process are carried out, and specific debugging steps are given to ensure the wiring and polarity of the CT are completely correct.
    Key words: infrastructure commissioning; current transformer; polarity check
 
参考文献
[1] 赵盛,董新丛. 电流互感器极性详解[J]. 工程建设与设计,2018(22):71-72.
[2] 高大全,唐大洪,李波. 现场正确判定电流回路极性的方法及应用[J]. 冶金动力,2019(9):24-28.
[3] 鲜万春. 电流互感器的接线及极性测试的分析[J].科技资讯,2017,15(33):41-42.
[4] 陈冬蕾,燕宝峰,苟晓桐,赵磊. 电流互感器极性检查现场测试常用方法[J]. 内蒙古石油化工,2015,41(8):66-68.
[5] 苏果. CT伏安特性曲线及10%误差校验方法探讨[J]. 水电站机电技术,2018,41(5):16-18.
[6] 甘园林. 电流互感器CT 10%误差校验及举例[J].化学工程与装备,2016(9):228-230.
[7] 顾建华,彭前位,盛利华. 利用变压器短路试验电流检查差动保护二次电流回路接线[J]. 电世界,2017,58(8):14-15.
[8] 王霏霏. 利用励磁涌流校核差动保护极性的可行性研究与实践[J]. 湖南电力,2016,36(6):26-29.