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Development of a programmable partial discharge generator for the evaluation of partial discharge measuring devices

机译：用于评估局部放电测量装置的可编程局部放电发生器的研制

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Partial discharges (PD) measurement provide valuable information for assessing the condition of the insulation elements in high voltage (HV) electrical grids. During the last three decades, several instruments integrated with specific technical functionalities have been developed in order to perform accurate diagnostics when temporary or monitoring measurements are carried out on-site and on-line. Some electrical utilities, maintenance companies and large electricity consumers have defined technical specifications trying to select the most appropriate PD measuring systems, but in general, no tests are performed to check their capability to perform appropriate and accurate diagnostics. Furthermore, no standard exists to define what type of evaluation should be required to assess the efficacy of this type of instrumentation. In this paper, a reference PD generator developed for the evaluation of the functional features of PD measuring and diagnostic instruments is presented. This PD generator enables the characterization of the technical functionalities of commercial PD instruments in a controlled and homogenous way and without the requirement of apply HV in a test facility. Reference analogue PD time series with superimposed electrical noise time sequences are generated simulating real acquisitions of on-line PD measurements.
机译：部分放电（PD）测量提供了用于评估高压（HV）电网中的绝缘元件条件的有价值的信息。在过去的三十年中，已经制定了几个与特定技术功能集成的仪器，以便在现场和在线进行临时或监测测量时进行准确的诊断。一些电力公用事业，维护公司和大型电力消费者已经定义了试图选择最合适的PD测量系统的技术规范，但一般情况下，没有进行测试以检查其执行适当和准确的诊断的能力。此外，不存在任何标准来定义应该需要什么类型的评估来评估这种类型的仪器的功效。本文提出了一种用于评估PD测量和诊断仪器功能特征的参考PD发生器。该PD发生器能够以受控和均匀的方式表征商业PD仪器的技术功能，并且在测试设施中不需要应用HV。通过叠加电噪声时间序列的参考模拟PD时间序列模拟在线PD测量的真实采集。

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