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

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 cer...

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Veröffentlicht in:	Electrical engineering in Japan 2008-11, Vol.165 (2), p.9-20
Hauptverfasser:	Iwasaki, Fumio, Ohnishi, Kazunori
Format:	Artikel
Sprache:	eng
Schlagworte:	phase current random arrangement of cables unbalanced three-phase current whole conductors clamping method
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Beschreibung
Zusammenfassung:	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
ISSN:	0424-7760 1520-6416
DOI:	10.1002/eej.20753