| 剩余电流动作保护器动作电流值的研究 |
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| 引用本文： | 张洪. 剩余电流动作保护器动作电流值的研究[J]. 华中电力, 2011, 0(5): 46-48 |
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| 作者姓名： | 张洪 |
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| 作者单位： | 湖北电力公司松滋市供电公司 |
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| 摘 要： | 在交流50Hz,额定电压为380/220V,电源中性点直接接地,并按TT方式运行的农村低压电网中,剩余电流动作保护器分别安装在电源端、分支线路和负载端构成三级剩余电流保护系统,各级电流动作保护器的动作电流值是实现有选择性的重要保证,该研究系统阐述了各级电流动作保护器的动作电流值的整定,对农村低压电网的安全稳定运行具有较...
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| 关 键 词： | 剩余电流动作保护器 动作电流值 农村低压电网 |
Study of Actuation Current Value of Residual Current Operated Protective Devices |
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| ZHANG Hong. Study of Actuation Current Value of Residual Current Operated Protective Devices[J]. Central China Electric Power, 2011, 0(5): 46-48 |
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| Authors: | ZHANG Hong |
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| Affiliation: | Hubei Songzi Power Supply Company |
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| Abstract: | If a rural low voltage grid (AC 50HZ, 380V/220V, direct neutral point grounding) applies the TT work mode, and the residual current operated protective device is installed respectively to a three-layer residual current protective system which is constituted by VCC, branch circuit and load end. This paper systematically analyzes the setting of actuation current value of current operated protective devices on all levels, offers a high guidance value over safe and stable function of the rural low voltage grid. |
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| Keywords: | residual current operated protective devices operating current value rural low voltage grid |
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