华电技术 ›› 2011, Vol. 33 ›› Issue (10): 51-53.

• 技术交流 • 上一篇    下一篇

2种变压器差动保护的比较与校验

戈晓军   

  1. 国网能源神头第二发电厂,山西朔州036011
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-10-25 发布日期:2011-10-25

Comparison and calibration of two kinds of transformer differential protection

GE Xiaojun   

  1. Shentou Second Power Plant, State Grid Energy Development Corporation Limited, Shuozhou 036011, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-10-25 Published:2011-10-25

摘要: 变压器微机差动保护与常规差动保护的原理和装置结构有很大差异,即使同是微机型差动保护装置,不同生产厂家的装置也各不相同,现场检验时必须认真区别对待。比较了南京南瑞继电保护有限责任公司RCS-978和北京四方继保自动化股份有限公司CSC-326差动保护实现原理的差别,在此基础上,以Y0/Y0/D-11型三绕组变压器为例,介绍了差动保护的校验步骤和校验方法。

关键词: 变压器, 差动保护, 校验

Abstract: The transformer microcomputer differential protection is very different from the conventional differential protection in their principle and the device structure. And the microcomputer differential protection devices, which are manufactured by different companies, are different from each other; so they must be treated earnestly and respectively in field calibration. The difference of protective principle between the two devices, which are the RCS978, manufactured by Nanjing Nanrui Relay Protection Company Limited, and the CSC326, the product of Beijing Sifang Relay Protection and Automation Company Limited, was compared. Based on this, taking the Y0/Y0/D11 threewinding transformer as example, the calibration step and calibration method of differential protection were introduced.

Key words: transformer, differential protection, calibration