单相接地电容电流简便间接测量法

Simple Indirect Measurement Concerning the Single-phase Grounded Capacitance Current

运用重叠原理推导出中性点不接地馈电网单相接地电容电流的简便间接测量方法和计算公式，并运用变电所原有接地监视电压互感器配套，使测量装备少、结线简单、极易实施．改变直接接地测量法的不安全性和间接测量法的复杂性，可获得简单实用、准确率高的效果．

The simple indirect measurement and calculation formula of neutral point ungroundedsupply network with single-phase grounded capacitance current were deduced,by using asuperposition principle.Using a complete set of voltage transformer for original grounding moni-tor in substation,operation is easily carried out with less measurement device and simple wiring.The unsafety of direct-grounded measurement and the complexity of formerly indirectmeasurement will be changed greatly so that a result of high accuracy with easy operation hasbeen got.