Qualification of a Reference Measuring System for Impulse Voltage

摘要

Requirements for qualification of impulse voltage measuring systems are providedin IEC TC42(secretariat)71. Qualification of reference systems are not explicitly covered by the referenced paper, but are to be performed with procedures defined by the laboratory. The procedures focus on the traceability of calibration to national Standards. Procedures are outlined in the present paper for a 600 kV lightning impulse measuring system based on a resistive divider and a digital surge oscilloscope.