暂态地电压检测仪性能等效测试方法研究

Research of Working Principzuoyle and the Method of Performance Comparison about TEV Detecting Equipment

暂态地电压检测技术已经成为高压开关柜状态检测的重要手段之一,然而由于行业内尚未出台相关标准,对暂态地电压局部放电检测仪的技术性能进行规范,导致暂态地电压检测仪在选购、验收过程中出现测评难的问题。本文针对此问题,详细分析了暂态地电压检测仪的工作原理和特性参数,提出了信号模拟测评法和模拟故障测评法两种测评对比方法,并通过实测,验证了测评方法的有效性。

Transient voltage detection technology has become one of the important means of high voltage switch cabinet status detection.However, there is no standard to test the technical performance of transient voltage partial discharge detector. This problem causes the transient voltage detector in the purchase, acceptance process is difficult to evaluate, The article described the Mechanism of TEV on the surface of switchgear and the method of detecting Instrument working. Based on the problem of TEV equipment selection, Signal simulation test method and simulation fault test method are proposed. At the same time, the validity of the two methods is proved by experiments.