屏蔽电极对介质损耗试验测量误差研究

Study on measuring error of shielded electrode to dielectric loss test

高压电机绝缘体系中,在绝缘被应用于生产之前都会对该绝缘体系进行一系列的工艺性能试验,以确保绝缘系统在运行过程中的稳定性。然而在进行介质损耗试验过程中发现在屏蔽电极不存在的情况下,依然能测量出介质损耗角正切值。本文针对屏蔽电极的存在与否对高压电机主绝缘系统的介质损耗试验测量误差进行系统研究,为高压电机介质损耗角正切值的试验精确度提供了参考。

In the high voltage motor insulation system,a series of process performance tests are carried out on the insulation system before it is applied to production to ensure the stability of the insulation system during operation.In this paper,the measurement error of dielectric loss test in the main insulation system of high voltage motor,due to the presence or absence of shielded electrodes,is systematically studied so as to provide reference for the test accuracy of the tangent value of the dielectric loss angle in high voltage motor.