According to related codes and standards the design method and some practice problems of grounding are discussed, combined with working principle of grounding of instrumentation and control system.
结合仪表及控制系统接地的工作原理,根据有关规范,讨论了接地工程的设计方法和一些实际问题。
In this paper, a new method for DC system grounding fault detecting is presented.
文中提出直流系统接地故障检测方法。
This method is suited for various distribution system with different neutral grounding modes. Moreover, it can be easily used in site without adjusting protective setting.
该方法适用于小接地电流系统的各种中性点运行方式,并且现场安装简单、不需要定值整定。
Results indicate that the method effectively raises the accuracy of faulty line detection for power system with small grounding current.
结果表明,该方法有效地提高了小电流接地选线的准确性。
This paper introduces principle and application of a new method circuit selection for small current system when single phase grounding failure happens, namely remote sensing circuit selection device.
本文介绍了一种小电流系统单相故障接地选线的新方法即遥感式选线装置的原理及应用。
The paper analyzes the method of low frequency signal injection, which is usually used to detect DC system grounding fault, and advances the method based on wavelet transforms.
分析了低频信号注入法,并且针对其缺陷提出了基于小波变换的检测方案。
Based on the method of moment and the boundary element method, an improved method to analyze the grounding system buried in multi-layer soil with finite volumes is presented.
提出了分析含有有限体积的参数不同的材料的水平分层土壤中的接地网接地性能的方法。
Based on the method of moment and the boundary element method, an improved method to analyze the grounding system buried in multi-layer soil with finite volumes is presented.
提出了分析含有有限体积的参数不同的材料的水平分层土壤中的接地网接地性能的方法。
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