[TCML] 400 hz variacs
jimlux at earthlink.net
Sun Dec 12 10:26:10 MST 2010
On Dec 11, 2010, at 10:37 PM, HomerLea at aol.com wrote:
> These seem just as heavy as 120v 1.3 amp 60hz ones. What I don't get is how
> some fixed transformers are rated, for example, at 47hz to 400 hz; not
> uncommon for military transformers. Guess I should have been an electrical
> engineer instead of chemist.
They build them for the whole range. Cross-sectional area for the low frequency. Thin laminations and low hysteresis for the high.
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