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On the mechanical short-time rating of a current transformer
V. Jayashankar
Published in
2009
Volume: 24
   
Issue: 1
Pages: 480 - 481
Abstract
Closed-form expressions and a finite-element method are used to compute the maximum force in the primary conductor of a wound current transformer (CT). It is shown that for a given volume for the primary winding, one configuration exists that leads to a maximum force. It is proved that the mechanical short-time rating of two CTs having different turns but identical ampere turns is not equivalent. Designers can now establish and test a CT with a worst-case configuration. © 2008 IEEE.
About the journal
JournalIEEE Transactions on Power Delivery
ISSN08858977
Open AccessNo
Concepts (7)
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    ELECTRIC INSTRUMENT TRANSFORMERS
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    A WOUNDS
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    CLOSED FORMS
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    CURRENT TRANSFORMER (CT)
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    Finite-element method (fem)
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    SHORT-TIME RATING
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    Finite element method