Research on DC reference voltage and leakage current of multi-column parallel arresters for UHV DC converter station based on low voltage micro-amperemeter method
Yang Li1, Gao Lichao2, Yang Zhihua2, Gong Yuan2
1. State Grid Gansu Electric Power Company, Lanzhou 730030 2. State Grid Gansu Electric Power Research Institute, Lanzhou 730070
Abstract：UHV DC Converter Station DC Field have a lot of Multi-Column Parallel, the lightning arrester must when handing over the test or preventive test for DC reference voltage and leakage current test, and now for the lightning arrester reference voltage and leakage current test method or the conventional AC arrester test methods, the conventional method is only suitable for single lightning arrester or more than series arrester, more than for the parallel operation of surge arrester without corresponding test method. In this paper, a low pressure microamps table test, the test method can be without dismantling equipment, accurately measure the test data, reduce the workload, and to a certain extent, to avoid damage caused by the demolition of surge arrester.
杨力, 高立超, 杨志华, 龚源. 基于低压微安表法的特高压直流换流站多柱并联避雷器直流参考电压和泄漏电流测量方法的研究[J]. 电气技术, 2018, 19(2): 105-108.
Yang Li, Gao Lichao, Yang Zhihua, Gong Yuan. Research on DC reference voltage and leakage current of multi-column parallel arresters for UHV DC converter station based on low voltage micro-amperemeter method. Electrical Engineering, 2018, 19(2): 105-108.
2018, Vol. 19 
