This paper introduces the parameter selection, installation, grounding mode of low-voltage power grid and construction method of residual current operated protective device.
文中详细论述了剩余电流动作保护装置的参数选用，安装要求，低压电网接地方式及安装施工要求等。
The paper analyzed in detail that how to improve the motional success rate of grounding protection or automatic line selection device, and gave the concrete Suggestions.
本文对如何提高微机接地保护或自动选线装置的动作成功率，进行了比较系统和详细分析，提出了具体建议。
Based on the characteristics of TMS320LF2407, this paper presents the application of DSP to single earth fault selection device with small current grounding system.
根据TMS320 LF 2407的特点，介绍了DSP在小电流接地系统单相接地选线装置中的应用。
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