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Study of phase current measurement by the whole conductors clamping method for three‐phase cable
Author(s) -
Iwasaki Fumio,
Ohnishi Kazunori
Publication year - 2008
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20753
Subject(s) - bobbin , electrical conductor , clamping , current (fluid) , electromagnetic coil , electrical engineering , voltage , three phase , phase (matter) , current sensor , engineering , rogowski coil , materials science , acoustics , mechanical engineering , physics , quantum mechanics
This paper describes a new measuring method for the phase current in a high‐voltage three‐phase cable. Twenty‐four pieces of independent coils wound around the coreless bobbins are used to make a CT sensor. The primary phase current may be calculated based on the output voltage of each coil. The certain correlation between the output voltage and primary phase current is observed by the experimental data. This new CT sensor enables the measurement of the phase current using the whole conductors clamping method for a three‐phase cable. © 2008 Wiley Periodicals, Inc. Electr Eng Jpn, 165(2): 9–20, 2008; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20753