Study of phase current measurement by the whole conductors clamping method for three‐phase cable

Autor:	Kazunori Ohnishi, Fumio Iwasaki
Rok vydání:	2008
Předmět:	Engineering Bobbin business.industry Electrical engineering Phase (waves) Energy Engineering and Power Technology Clamping Three-phase Electromagnetic coil Electrical and Electronic Engineering Current (fluid) business Electrical conductor Voltage
Zdroj:	Electrical Engineering in Japan. 165:9-20
ISSN:	1520-6416 0424-7760
Popis:	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
Databáze:	OpenAIRE
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