Bill,
Before going off on this transformer, look at my off list message. You are
most likely measuring capacitively coupled volts with a high impedence volt
meter. Ground the CT and remeasure you should get 1700 volts (or more with
late yrs higher line volts) between each side and ground.
Sam, W5Lu
>From: "Will Matney" <craxd@engineer.com>
>To: amps@contesting.com
>Subject: Re: [Amps] Transformer core shorted to secondary winding??
>Date: Sat, 23 Jul 2005 20:14:05 -0500
>
>Bill,
>
>It definately has a high-ohm short in the secondary. They've wound the
>primary on the outside which I dont like to do. That way the secondaries
>leaking to the core instead of the primary. If the primary had been the
>first coil and it did that, it would blow a fuse most likely. The best
>check to find it is use a megger or a hipot, and it would make it show
>quickly.
>
>Best,
>
>Will
>
>
>----- Original Message -----
>From: "Bill Smith" <ko4nrbs@yahoo.com>
>To: amps@contesting.com
>Subject: [Amps] Transformer core shorted to secondary winding??
>Date: Sat, 23 Jul 2005 17:54:02 -0700 (PDT)
>
> >
> > Transformer is a 3400vac CT
> >
> > All Secondary leads lifted and using a HV Probe (Fluke
> > 80K-40)
> >
> > CT to chassis- 843 volts
> > One side of secondary to chassis- 2450
> > Other side of secondary to chassis- 863
> >
> > No continuity between secondary windings and the
> > chassis when checked with an ohm meter.
> >
> > 73,
> > Bill
> >
> >
> >
> > Bill Smith KO4NR
> >
> >
> >
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