Test Methods for Performance of Protective Devices Excited by Conducted Transient Electromagnetic Disturbance

This paper firstly summarizes the requirements of different standards for conducted transient electromagnetic disturbance waveforms and the protection test methods. However, they mainly focus on the testing methods of low-voltage protective devices. To quantify the performance of the medium- and high-voltage protection devices excited by electromagnetic transients, an effective test method is then proposed. The test setup consists of a pulser, a high-voltage power divider, a protective device under test, transmission lines and the measurement system. The test results of 10-kV non-gapped metal-oxide arrester verify the validation of the proposed test method. Additionally, the applied current and the current flowing through protective devices can be calculated so that the response time delay and the performance can be evaluated.