基于RTDS的小电流接地选线装置轮切功能测试方法

Test Method of Alternate Switching Function of Small Current Grounding Line Selection Device Based on RTDS

为了提高小电流接地选线装置选线准确率,提出了一种基于RTDS的小电流接地选线装置轮切功能测试方法。该方法通过RTDS实时数字仿真器模拟产生接地故障信号,多路功率放大器将接地故障信号放大,选线装置根据放大后的接地信号选出多条线路,并按接地概率大小对选中线路进行轮切操作。该方法为小电流接地选线装置轮切功能测试提供了思路。

In order to improve the line selection accuracy rate of small current grounding line selection device,a test method of alternate switching function of small current grounding line selection device based on RTDS is proposed.In the method,the grounding fault signal is simulated by RTDS real-time digital simulator,and amplified by multi-channel power amplifier,and then the line selection device selects several lines based on the amplified grounding signal and executes alternate switching operations to selected lines according to their grounding probabilities.The method provides an idea for the alternate switching function test of small current grounding line selection device.