| 一起变压器低压侧故障跳开中压侧母联断路器原因的分析 |
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| 引用本文： | 冯毅,王少杰,田文平,王亚杰.一起变压器低压侧故障跳开中压侧母联断路器原因的分析[J].电力系统自动化,2012,36(9):113-115. |
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| 作者姓名： | 冯毅 王少杰 田文平 王亚杰 |
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| 作者单位： | 1. 宁夏电力公司吴忠供电局,宁夏回族自治区吴忠市,751100
2. 西安交通大学电气工程学院,陕西省西安市,710049 |
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| 摘 要： | 通过分析一起110kV变压器低压侧10kV母线相间短路故障对主变压器中压侧后备保护的影响,提出后备保护时间合理配合、改变系统运行方式等应对主变压器低压侧相间故障对中压侧后备保护影响的措施,并通过模拟故障、理论计算验证了其可行性,对电力系统整定计算方案的确定具有参考意义。
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| 关 键 词： | 变压器 后备保护 母联断路器 分列运行 整定计算 |
| 收稿时间： | 6/16/2011 9:24:43 PM |
| 修稿时间： | 2012/4/17 0:00:00 |
Analysis of Bus Tie Circuit Breaker Tripping in Medium Voltage Side Caused by Transformer Fault in Low Voltage Side |
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| FENG Yi,WANG Shaojie,TIAN Wenping,WANG Yajie.Analysis of Bus Tie Circuit Breaker Tripping in Medium Voltage Side Caused by Transformer Fault in Low Voltage Side[J].Automation of Electric Power Systems,2012,36(9):113-115. |
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| Authors: | FENG Yi WANG Shaojie TIAN Wenping WANG Yajie |
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| Affiliation: | 1.Wuzhong Power Supply Bureau,Ningxia Grid Corporation,Wuzhong 751100,China;2.School of Electric Engineering,Xi’an Jiaotong University,Xi’an 710049,China) |
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| Abstract: | The impact on operation of backup protection in medium voltage side caused by phase to phase short circuit fault in low voltage 10 kV bus side of 110 kV transformer is analyzed.Then,corresponding solutions such as fitting backup protection time,changing operation mode of system,etc,are proposed for reducing influence of low voltage side phase to phase fault on backup protection in medium voltage side.Through failure model simulation and theoretical calculation,the feasibility of previous solutions is verified,which may offer a reference for the setting calculation of power system. |
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| Keywords: | transformer backup protection bus tie circuit breaker parallel operation setting calculation |
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