| 引用本文: | 陈医平,蔡旭,曹小连,吴巍.厂用电切换方式探讨[J].电力自动化设备,2006,(11):107-110 |
| .Discussion on house supply transfer[J].Electric Power Automation Equipment,2006,(11):107-110 |
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| 摘要: |
| 详细分析了厂用电系统母线断电后母线残压特性,厂用系统电源切换可能面临的问题,提出了4种可能的切换方式:快速切换、首次同相切换、残压切换和长延时切换,并就每种切换方式结合其判据及实际录波波形对切换的全过程、切换前系统的特征、切换后对系统的影响及整定方法进行了细致的分析。最后得出快速切换是最安全、可靠的切换方式,它是主切换且是无损切换,首次同相切换、残压切换和长延时切换属于后备切换模式,是有损切换,是对快切模式的补充。 |
| 关键词: 快速切换,母线残压,首次同相,长延时切换 |
| DOI： |
| 分类号:TM621.6 |
| 基金项目: |
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| Discussion on house supply transfer |
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CHEN Yi-ping CAI Xu CAO Xiao-lian WU Wei
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| Abstract: |
| Residual voltage characteristics of the busbar after outage are analyzed,as well as possiblematters during house supply transfer.Four possible transfer modes are presented:the fast transfer,the first phase coincidence transfer,the residual voltage transfer and the long delayed transfer.Combined with the criterion and site recorded waves,each mode is discussed on the whole transfer process,pre-transfer system characteristics,the post-transfer influence on the system and the setting way.The fast transfer is the safest and most reliable mode,which is a lossless transfer and regarded as the main transfer,while others are lossy ones and as the backup. |
| Key words: fast transfer,busbar residual voltage,first phase coincidence,delayed transfer |
