Tap changing transformer

Details Tap changing transformer Tap changing transformer

H - Electricity

01

F

336/43

H01F 29/02 (2006.01)

Patent

CA 1120112

ABSTRACT OF THE DISCLOSURE A tap changing transformer in which the voltage developed between the high-voltage terminals is adjusted by changing over the taps of the tap winding provided for the high-voltage winding by a first tap changer while the voltage between the low-voltage terminals is controlled by the series transformer connected with the low-voltage winding. The series winding connected with the low-voltage winding and the exciting winding for exciting the series winding constitutes the series transformer and one end of the exciting winding is connected with the tap winding of the high-voltage winding while the other end of the exciting winding is connected with a second tap change for changing over the taps of the tap winding. Accordingly, the exciting winding of the series transformer and the tap winding connected therewith through the second tap changer are caused to operate in combination, whereby the number of tap leads can be considerably decreased, which facilitates the taking-out of the leads and simplifier the structure of the tap changing transformer.

308748

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