Title :
A 150,000-A transient current measurement of AC comparator for national test station
Author :
Ren, Shiyan ; Hu, Wenyi ; Lu, Sunan
Author_Institution :
Dept. of Electr. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A 150,000-A transient current measurement device based on self-balancing AC current comparator type, which can be used in National Test Station and industrial heavy current system for calibration and measurement is presented. Testing of the comparator indicates that its transient current tolerance is less than 1% under the conditions of 150,000-A primary transient current, 100% full offset DC component, and 150 ms time constant of primary current. The transient performance and the test results are discussed
Keywords :
calibration; current comparators; electric current measurement; measurement standards; transients; 150 ms; 150000 A; calibration; current tolerance; full offset DC component; industrial heavy current system; national test station; self-balancing AC current comparator; time constant; transient current measurement; Automatic testing; Circuit testing; Current measurement; Current transformers; Equivalent circuits; Inductance; Laplace equations; Magnetic field measurement; Power system transients; System testing;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1997. IMTC/97. Proceedings. Sensing, Processing, Networking., IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-3747-6
DOI :
10.1109/IMTC.1997.603977
