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Old 17th Oct 2020, 4:52 pm   #5
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Default Re: transformer

I wouldn't expect the secondary to get up to the calculated voltage because the core is likely to saturate long before. You're applying 400v to a 160v winding, 2.5 times the intended voltage.

When the core saturates the primary inductance plunges and the primary current goes through the roof. It's a race between a fuse and the wire going first.

David
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