Allowable limits to Short Time Voltage Drops in HV Withstand Tests

The current versions of IEC60060 part 1 [1] and part 2 [2] give incomplete definitions about the allowable voltage drop during a HV test and give limited requirements for measuring systems necessary for tests where non-disruptive discharges occur. Currently, there is vague information in IEC60060 Part 1 as to how long the specified maximum voltage drop can persist before the test is considered a failure. IEC60060 Part 2 contains some information about the frequency response of measuring systems for AC and DC voltages but does not give guidance on the characteristics of measuring systems needed to record fast, non-disruptive discharges that may be more than 10% for DC and 20% for AC. In this paper, we would like to stimulate a discussion and encourage researchers to work on this problem to…