| 带接地保护功能塑壳断路器在发电厂低压电动机中的应用 |
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| 引用本文： | 龙军,朱远萍. 带接地保护功能塑壳断路器在发电厂低压电动机中的应用[J]. 四川电力技术, 2011, 34(2): 34-37 |
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| 作者姓名： | 龙军 朱远萍 |
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| 作者单位： | 西南电力设计院,四川,成都,610021 |
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| 摘 要： | 根据厂用电规程相关要求,发电厂低压厂用电动机相间短路保护如不能满足单相接地短路的灵敏度时,应另装接地短路保护,介绍了常规接地保护的实现方法并指出其在某些特殊情况下的局限性,结合发电厂实际情况介绍了一种采用带接地保护功能的塑壳断路器实现电动机单相接地短路保护的方法,供大家参考。
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| 关 键 词： | 塑壳断路器 漏电保护模块 电子脱扣器 单相接地 |
Application and Discussion of Moulded Case Circuit-breaker with Ground Protection Function to Low-voltage Motor of Power Plant |
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| Long Jun,Zhu Yuanping. Application and Discussion of Moulded Case Circuit-breaker with Ground Protection Function to Low-voltage Motor of Power Plant[J]. Sichuan Electric Power Technology, 2011, 34(2): 34-37 |
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| Authors: | Long Jun Zhu Yuanping |
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| Affiliation: | Long Jun Zhu Yuanping |
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| Abstract: | According to the technical rules for designing auxiliary power system of fossil-fired power plants,if the interphase short-circuit protection for low-voltage motor can not meet the sensitivity requirements of single-phase earth fault,a special earth fault protection device shall be provided.A traditional design for earth fault protection is introduced and its limitations in a certain case are pointed out.For reference,a way to realize single-phase earth fault protection is introduced by using moulded case c... |
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| Keywords: | moulded case circuit-breaker leakage protection module electronic trip element single-phase earthing |
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