Title :
Evaluation of errors in a current comparator system used for current transformer testing
Author :
Takahashi, Kunihiko
Author_Institution :
Japan Electr. Meters Inspection Corp., Tokyo, Japan
fDate :
4/1/1989 12:00:00 AM
Abstract :
An error evaluation method for a current transformer (CT) test system using a current comparator is described, and evaluated results of the CT test system are given. The CT test system is designed for use at power frequencies, and at winding ratios of 1:1 to 20:200 with in-phase and quadrature errors of less than 1 ppm and 2 μrad, respectively, over this range
Keywords :
calibration; comparators (circuits); current transformers; electric current measurement; measurement errors; test equipment; transformer testing; current comparator; current transformer testing; errors; measurement errors; test equipment; Automatic testing; Circuit testing; Current transformers; Detectors; Frequency; Helium; Operational amplifiers; System testing; Transformer cores; Watthour meters;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
