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目前,随着电容型设备介损测量状态监测技术的不断发展,作为其前端电流信号采集装置的介损测量电流取样单元被广泛应用到现场中,其性能直接影响整个测试系统的构成及检测效果。首先介绍了电容性设备状态监测的检测原理,并对目前常见的两种形式的取样单元进行安全性、可靠性等指标的比较分析,并结合两者在现场中的实际反馈信息,为各网省公司在介损测量取样单元的现场选型提供了参考。
At present, with the continuous development of dielectric loss measurement condition monitoring technology of capacitive devices, the sampling unit of dielectric loss measurement current as the front-end current signal acquisition device is widely applied to the field, and its performance directly affects the composition and the detection effect of the entire test system . Firstly, the detection principle of capacitive device condition monitoring is introduced. And the comparability of safety, reliability and other indicators of the two common sampling units are introduced. Combined with the actual feedback information of the two in the field, Provincial companies in the dielectric loss measurement sampling unit on-site selection provides a reference.