An engineering method of calculating the critical thickness of the discs of the windings of transformers for resistance-welding machines

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It is established that resistance welding machine's transformer winding discs thicknesses growth higher than certain critical value causes loss increase and excessive consumption of the winding copper. An analytical calculation of this value is given. Relative units' application in analytic expressions considerably simplifies disc critical thickness calculation.

Keywords: coil loss; disc critical thickness; inverter power supply; resistance welding machines; surface effect; transformer

Document Type: Research Article


Affiliations: 1: Elektrik Company, Vladivostok, Russia 2: St Peterburg State Technical University, St Peterburg, Russia

Publication date: July 1, 2011

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