中压网络试验系统瞬态恢复电压参数的计算及波形模拟  

Parameters Calculation and Waveforms Analog of Transient Recovery Voltage for Medium-Voltage Network Test System

作　　者：吴盛刚[1] 李向阳[1] 王学军[1] 杨海芳[1] 李玉春[1] 

机构地区：[1]中国电力科学研究院,北京100192

出　　处：《电工电气》2010年第6期1-6,共6页Electrotechnics Electric

摘　　要：瞬态恢复电压(TRV)是影响断路器短路开断能力的重要参数,在标准中都对它有明确的规定和要求。如何正确选择TRV测试方法(原理与线路)以获得符合标准要求的预期TRV波形,是每一个大容量试验室必须做的重要工作。给出了计算TRV的原理电路,在此基础上推荐了测取首开相及后开相预期TRV波形的低压模拟接线方式,经过实际测试,取得了较满意的效果。Transient recovery voltage （TRV） is an important parameter which impacts on circuit-breaker short-circuit breaking capacity. There are definite regulations and requirements in the standards. How to correctly choose TRV test method （principle and circuit）, so as to obtain required and predicated TRV waveforms in conformity with the standards, is important work which must be carried out for every large capacity test lab. The principle circuit adopted to calculate TRV was given, and on this basis, low-voltage analog wiring method was recommended for test to get predicated TRV waveforms of first-open-phase and post-open-phase. After actual test, more satisfactory effect is obtained.

关 键 词：网络试验 合成试验 瞬态恢复电压 波形模拟 

分 类 号：TM561[电气工程—电器]