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| 摘要: |
| 扼要介绍了作者多年来在采样值差动保护的开发与应用中的一些体会与经验，对所遇到的一些主要问题作了相应的回答，对采样值差动的特殊能力作了一些介绍。着重讨论了采样值差动与瞬时值差动的区别，采样值差动的两个关键参数Ｒ和Ｓ在不同应用对象时的选择方法。还举出了作者将采样差动原理运用在母线差动保护，短线路中电流纵差动保护和变压器电流差动保护时，Ｒ和Ｓ的选择结果及其应用情况。在的保护装置中，动作性能良好。 |
| 关键词: 差动保护 采样值 继电保护 母线保护 电力系统 |
| DOI： |
| 分类号:TM773 |
| 基金项目:国家教育委员会博士点基金 |
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| On Problems about Sampling Value Differential Protection |
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CHEN De-shu YIN Xiang-gen ZHANG Zhe
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| Abstract: |
| Experiences in the development and application of sampling value differential protection are introduced.The answers to the main problems encountered are given.The special performances of the sampling value differential protection are introduced too.The differences between the sampling value differential protection and transient value differential protection,the methods for selecting the main parameter R and S in different applications are discussed.Some examples of the application situations R & S selection results in bus bar protection,short line protection and transformer protection with sampling value differential principle are presented.The performances of these protections are better than the traditional equipment. |
| Key words: differential protection,sampling value,protective relaying |
