Investigated drift of the CT error and an aluminum shielding

Investigated drift of the CT error and an aluminum shielding

The drift of the error of a window-type high current transformer(CT) was observed by an automated calibration system that consists of a current comparator(CC) [1] and a current ratio transfer standard(CRTS) [2]. Furthermore, the shielding by means of aluminum plates for preventing local magnetic sat...

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Bibliographische Detailangaben
Hauptverfasser: Takahashi, K., Yamawaki, M., Tadokoro, T.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Aluminum
Calibration
current comparator
Current measurement
current transformer calibration
Current transformers
exciting impedance
Impedance
magnetic saturation
Measurement uncertainty
Windings
window-type current transformer
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Beschreibung
Zusammenfassung:The drift of the error of a window-type high current transformer(CT) was observed by an automated calibration system that consists of a current comparator(CC) [1] and a current ratio transfer standard(CRTS) [2]. Furthermore, the shielding by means of aluminum plates for preventing local magnetic saturation is also proposed in this paper.
ISSN:0589-1485
2160-0171
DOI:10.1109/CPEM.2012.6250707