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Content available On parameters determination of multi-port equivalent scheme for multi-winding traction transformers
Sobczyk T. J., El Hayek J.
Archives of Electrical Engineering
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2015
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Vol. 64, nr 1
17--27
EN
This paper aims to present a new equivalent scheme of multi-windings traction transformers, based on multiport purely inductive circuit. The mathematical background of this equivalent scheme is described. The determination of the different scheme elements is made through a finite-elements calculation of both main and leakage inductances, for the case of a four-winding transformer. A procedure is defined, which allows to estimate the values of these elements from some measurements on the transformer at no-load and short-circuit operations. A specific strategy of short-circuit tests is described, allowing to determine all parameters in a rather simple way.
2
Content available remote Estimation of Parameters of Multi-Port Equivalent Scheme for Multi-Winding Traction Transformers
El Hayek J., Sobczyk T.
Maszyny Elektryczne : zeszyty problemowe
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2014
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Nr 3(103)
19--24
EN
This paper aims to present a new equivalent scheme of multi-windings traction transformers, based on multiport purely inductive circuit. The mathematical background of this equivalent scheme is described. The determination of the different scheme elements is made through a finite-elements calculation of both main and leakage inductances, for the case of a four-winding transformer. A procedure is defined, which allows to estimate the values of these elements from some measurements on the transformer at no-load and short-circuit operations. A specific strategy of short-circuit tests is described, allowing to determine all parameters in a rather simple way.
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