voltage-ratio method

Error Test of Current Transformers with Low-voltage Deduced Method

低压外推法测定电流互感器误差

Use the classical bridge method to test the position of the insulated fault point, adopt high voltage and high performance electronic amplifier to substitute galvanometer extend the measuring range of the insulation resistance to 10M Ω.

利用经典电桥法对电缆绝缘故障点位置进行测定，采用高电压、高性能电子放大器代替检流计使测量范围延伸到高达10MΩ的绝缘故障测量。

The basic configuration of the constant-voltage method using electrometer or picoammeter is shown in Figure 2-30 a.

使用静电计和皮安计的恒压法的基本电路配置如图 2-30a 所示.

A Method of Testing Current and Voltage Circuits before its Commissioning

一种模拟送电调试的试验方法

The operational principle of applied voltage method, the design of test circuit and outgoing line mechanism etc.

文中首先介绍了外加电压法的工作原理；测试回路和引线机构的设计等；