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NEON- Re: dimming HPF
Dave,
>>>National Cathode Corp. in New York dimmed HPF transformers regulary with
Variac dimmers. Putting the correct size cap. in series [parallel???] across the
primary of a NPF should make it a HPF. On the Tecnoservice transformers (a
TecnoLux company) the Cap. is on the lid with the primary disconect . Change the
lid, change the power factor. David Ablon<<<
I stand corrected. I had not considered the variac method for dimming HPF
transformers (per my reference to "switching" dimmers).
As an aside, I thought most manufacturers did their PF correction by using an
autotransformer type primary winding in order to use a smaller capacitor
(physically, value-wise, and $-wise. Your statement implies that they just drop
a cap right across the line terminals. Is this impression accurate?
Regards,
Telford Dorr
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