CAD CAM EDM DRO - Yahoo Group Archive

Constant voltage transformer

Posted by dave_ace_me
on 2002-04-06 14:24:35 UTC
Hi all,

Thanks to you who advised me that what I have is a constant voltage
transformer or as some called it, ferro-resonant (sp) transformer.

In doing some further checking, and going by the size of the frame
and using the sq cm as the basis, it is of the same capacity as
the 'standard' transformer that was in the same unit.

My question is whether there is any plus (or minus) of using this
constant voltage transformer over the standard transformer.

The second question is to the reason why there is a 100 ohm
(measured) resistor across the taps of the cap. Does the constant
voltage transformer require a minum load or something ? I would have
expected a much smaller bleed resistor over such a large cap.

The resistor is a 100 ohm, 55 watt connected directly across the
68,000 / 75 volt capacitor.


Dave

Discussion Thread

dave_ace_me 2002-04-06 14:24:35 UTC Constant voltage transformer Alan Marconett KM6VV 2002-04-06 16:55:57 UTC Re: [CAD_CAM_EDM_DRO] Constant voltage transformer dave_ace_me 2002-04-06 19:34:07 UTC Re: Constant voltage transformer Jon Elson 2002-04-06 22:27:24 UTC Re: [CAD_CAM_EDM_DRO] Constant voltage transformer dave_ace_me 2002-04-07 07:02:31 UTC Re: Constant voltage transformer Raymond Heckert 2002-04-07 20:45:55 UTC Re: [CAD_CAM_EDM_DRO] Re: Constant voltage transformer Jon Elson 2002-04-07 22:09:37 UTC Re: [CAD_CAM_EDM_DRO] Re: Constant voltage transformer