The earthing method of the metal sheath varies somewhat in different cable lengths, which affects greatly line parameters, especially zero sequence impedance.
对于不同长度的电缆线路其金属护套的接地方式亦不尽相同，从而对电缆线路参数，尤其是对零序阻抗将产生较大的影响。
This paper puts forward magnetic balanced inspection method, and designs DC earthing inspection system based on magnetic balanced method.
本文提出了磁平衡监测方法，设计了基于磁平衡法的直流接地监测系统。
A sort of electrostatics problem that using electric image method to solve the electric field in the wedge area between two infinite earthing metal boards are discussed using group theory.
对静电学中用电象法求解两无穷大接地金属板间楔形区域内的电场的题目，利用群论方法加以讨论，给出了可求解的条件及一般的象电荷分布。
To solve the problem of locating the multipoint earthing of the transformer core, two novel methods, named as high-frequency method and travelling-wave method, are analyzed and compared in detail.
为对变压器铁心发生的多点接地故障进行准确定位提出了高频法和行波法两种检测方法，并对它们进行了较为详细的分析和比较。
Adopt single some earth, multipoint earthing, mix earth, simulation circuit earth, digital circuit earth introduce PCB printed circuit board earth mentality of designing, design method, skill.
并通过单点接地、多点接地、混合接地、模拟电路接地、数字电路接地介绍了P CB印刷电路板接地的设计思路、设计方法与技巧。
The basic principle of earthing transformer is analysed. A proper capacity calculation method for earthing transformer is introduced. The calculation example is given too.
分析了接地变压器的基本原理，介绍了一种比较合理的接地变压器容量计算方法，并给出了计算实例。
According to the practical situations of substation engineering, this paper analyzes the method to reduce grounding resistance. It helps for construction of substation earthing grid.
从变电站工程施工的实际情况出发，分析了变电站降低接地电阻的方法，以期对变电站接地网建设有所裨益。
According to the practical situations of substation engineering, this paper analyzes the method to reduce grounding resistance. It helps for construction of substation earthing grid.
从变电站工程施工的实际情况出发，分析了变电站降低接地电阻的方法，以期对变电站接地网建设有所裨益。
应用推荐