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| 摘要: |
| 研究了电流互感器二次侧发生短路故障，尤其是相间短路时，保护装置测量电流的变化情况。通过公式推导和向量分析，简要分析了其对某些保护功能尤其是距离保护和差动保护的影响，并提出了电流互感器二次侧短路的判据对策。 |
| 关键词: 电流互感器 短路 继电保护 |
| DOI： |
| 分类号:TM452 TM772 |
| 基金项目: |
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| Analysis of CT secondary circuit short-circuit fault and its countermeasure |
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YANG Li-fan CHANG Bao-bo
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| Abstract: |
| The current variations measured by protective relay during the CT short-circuit fault atsecondary side,eapecially inter-phase S/C,are studied. Using formula derivation and vector analysis,its influence on some functions of protective relays,especially distance relay and differential relay,is introduced and its countermeasure is presented. |
| Key words: current transformer,short circuit,protection relay, |
