UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - wiring toroidal transformer primary in parallel

Ed_Dinning · 22nd Feb 2021, 1:54 pm

Hi Andy, if it hase 2, 115v primaries they are meant to be wired in parallel FOR 115V ONLY, as otherwise the primary will be overloaded if only 1 is used.
Applying 240v to this 115 winding pair will push the primary well beyond saturation and cause mains circuit fuse blowing.

Ed

22nd Feb 2021, 1:54 pm	#4
Ed_Dinning Dekatron Join Date: Jan 2004 Location: Newcastle upon Tyne, Tyne & Wear, UK. Posts: 8,194	Re: wiring toroidal transformer primary in parallel Hi Andy, if it hase 2, 115v primaries they are meant to be wired in parallel FOR 115V ONLY, as otherwise the primary will be overloaded if only 1 is used. Applying 240v to this 115 winding pair will push the primary well beyond saturation and cause mains circuit fuse blowing. Ed