| 并联型真空发电机断路器的电流转移过程 |
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| 引用本文： | 郑祥,邹积岩,程卓. 并联型真空发电机断路器的电流转移过程[J]. 高电压技术, 2009, 35(11): 2709-2715 |
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| 作者姓名： | 郑祥 邹积岩 程卓 |
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| 作者单位： | 大连交通大学电气信息学院,大连,116028;大连理工大学电气工程与应用电子技术系,大连,116024;大连理工大学电气工程与应用电子技术系,大连,116024;大连东软信息学院计算机科学与技术系,大连,116023 |
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| 摘 要： | 目前越来越多的电厂已经认识到在发电机与升压变压器之间安装发电机断路器(generator circuit breaker,GCB)的重要性。由于具有安全、价格及体积等优势,真空型的发电机断路器是中小型电厂的首选。为提高开断能力和通流能力,提出了一种区别于传统并联断路器控制机制而采用两断口分步打开开断方式的新式并联双断口真空发电机断路器,它将电流转移到后打开的灭弧室,利用相控方法进行开断。通过对3种故障电流下的电流转移过程分析,推导出3种故障情况下的电流转移过程变化公式,并对100kA周期电流下进行仿真分析,得到实现电流转移的根本原因。通过样机实验和理论计算对比,忽略电弧电阻是计算产生误差的主要原因。
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| 关 键 词： | 发电机断路器 相控原理 电流转移过程 电弧电阻 并联 真空断路器 |
Current Transfer Process of Paralleled Vacuum Generator Circuit Breaker |
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| ZHENG Xiang , ZOU ji-yan , CHENG Zhuo. Current Transfer Process of Paralleled Vacuum Generator Circuit Breaker[J]. High Voltage Engineering, 2009, 35(11): 2709-2715 |
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| Authors: | ZHENG Xiang ZOU ji-yan CHENG Zhuo |
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| Affiliation: | ZHENG Xiang1,2,ZOU Ji-yan2,CHENG Zhuo3(1.School of Electronics and Information Engineering,Dalian Jiaotong University,Dalian 116028,China,2.Department of Electrical and Electronics Engineering,Dalian University of Technology,Dalian 116024,3.Department of Computer Science and Technology,Dalian Neusoft Institute of Information,Dalian 116023,China) |
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| Abstract: | The importance of Generator Circuit Breaker(GCB)between generator and step-up transformer is recognized by more power plant.Because of the advantages of safety price and volume,vacuum GCB is firstly selected by middle and small power plants.This paper puts forward a novel vacuum GCB with two breaks in parallel.Different from traditional control style of paralleled breakers,it adopts the breaking style which two interrupters open step by step.After current is transferred in latter interrupter entirely,the cu... |
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| Keywords: | GCB phase control current transfer process arc resistance parallel vacuum CB |
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