| PLC在备用电源自动投入中的应用 |
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| 引用本文： | 姚明仁,赵芳.PLC在备用电源自动投入中的应用[J].三峡大学学报(自然科学版),2001,23(5):424-426. |
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| 作者姓名： | 姚明仁 赵芳 |
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| 作者单位： | 三峡大学电气信息学院, |
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| 摘 要： | 介绍了大、中型工厂总降压谱电所主变压器二次侧常采用的运行方式，将PLC地主变压器二次侧单母级分段联络断路器的备用电源自动投入装置中，可提高供电系统的可靠性，与继电器组成的备用电源自动投入装置相比，具有可靠性高、接线简单、控制灵活、调试方便和投资小等优点。
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| 关 键 词： | PLC 工厂供电 备用电源 自动投入 |
| 文章编号： | 1007-7081(2001)05-0424-03 |
| 修稿时间： | 2001年4月11日 |
Application of Programmable Controller(PLC) to Automatic Throw-in of Emergency Power Supply |
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| Yao Mingren,Zhao Fang.Application of Programmable Controller(PLC) to Automatic Throw-in of Emergency Power Supply[J].Journal of China Three Gorges University(Natural Sciences),2001,23(5):424-426. |
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| Authors: | Yao Mingren Zhao Fang |
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| Abstract: | The usual run mode of secondary sides of main transformers in chief step-down substations of large and medium-sized factories is introdu ced.The reliability of the power supply system can be improved if a programmable controller (PLC) is applied to the automatic throw-in of emergency power suppl y in the single-bus section connecting breaker of the secondary side.Compared w ith the automatic throw-in equipment consisting of relays,this method has highe r reliability and simpler mode of connection.It also has the advantages of flexi ble controlling,convenient debugging and small investment. |
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| Keywords: | programmable controller (PLC) factory power supply em ergency power supply automatic throw-in |
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