| 基于7SJ68微机综合保护测控装置的低压继电保护改造 |
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| 引用本文： | 胡平.基于7SJ68微机综合保护测控装置的低压继电保护改造[J].合成技术及应用,2016(1):56-61. |
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| 作者姓名： | 胡平 |
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| 作者单位： | 中国石化仪征化纤有限责任公司PTA生产中心,江苏仪征,211900 |
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| 摘 要： | 本文针对PTA装置原低压进线继电保护装置存在的问题,提出了继电保护改造的方案,并基于西门子7SJ68微机综合保护测控装置对控制逻辑及控制回路进行重新设计。经改造验证,综合保护测控装置工作可靠,实现了不停电倒闸及备自投功能,解决了原继电保护装置存在的问题。
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| 关 键 词： | 继电保护 不停电倒闸 备自投 |
Renovating of low voltage relaying protection based on 7 SJ68 integrated protector |
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| Abstract: | This paper proposes relaying protection renovating solutions to the problems existed in PTA original LV incoming line relaying protection device. The control logic and control circuit are redesigned based on 7SJ68 in-tegrated protector. The renovating result has proved that the integrated protector works reliably, the function of switching and spare power automatic switching is realized,and the problems existed in original relaying protection device are solved. |
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| Keywords: | relaying protection switching without power failure spare power automatic switching |
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