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Direct-Reading Method for Nonlinearity Index of Silicon Carbide Varistor

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2 Author(s)
Masami Uno ; Faculty of Engineering, Shizuoka University, Hamamatsu, Japan. ; Hiroyuki Tanaka

This paper presents a direct-reading method for the nonlinearity index of silicon carbide varistor. Varistors of voltage rated from 50 V to 700 V can be measured without range switching. Measurement is made either at 0.1 and 1 mA or 1 and 10 mA of the varistor current. Precalibration is made by using an ordinary resistor. Measurement accuracy is -3 percent.

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:IM-20 ,  Issue: 1 )