| 电缆线路电流速断保护原理及整定计算 |
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| 引用本文： | 罗风立. 电缆线路电流速断保护原理及整定计算[J]. 水泥工程, 2017, 30(3): 58-61 |
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| 作者姓名： | 罗风立 |
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| 作者单位： | 中信重工工程技术有限责任公司 |
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| 摘 要： | 本文就工厂企业中常见的6kV及10kV电缆线路保护误动原因进行分析,以电流速断保护理论为依据,阐述了保护误动的原因,并结合实例说明保护定值计算中应注意的问题,对电气设计及运行人员在实际的保护配置和整定计算中具有借鉴意义。
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| 关 键 词： | 线路保护；瞬时电流速断；限时电流速断；容量；供电；配电网络 |
Principle and setting calculation of current quick breaking protection for cable line |
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| Luo Fengli. Principle and setting calculation of current quick breaking protection for cable line[J]. Cement Engineering, 2017, 30(3): 58-61 |
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| Authors: | Luo Fengli |
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| Affiliation: | CITIC Heavy Engineering Technology Co., Ltd. |
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| Abstract: | In this paper, the protection maloperation of common 6 kV and 10 kV cable line protection malfunction is analysed, and according to current quick break protection theory, the reason of misoperation is expounded. And combined with examples the problems that we should pay attention to in calculation of protetion setting value are explained, which can be used as a reference for the electrical design and operation personnel in the actual protection, configuration and setting calculation. |
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| Keywords: | line protection instantaneous current quick break limited current quick break capacity power supply distribution network |
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