[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
PTs
Original poster: "Christopher Boden by way of Terry Fritz <twftesla-at-uswest-dot-net>" <chrisboden-at-hotmail-dot-com>
I have several PT's 2 rated at 14.4kV at 1kVA with a 120 primary and a whole
truckload of 2400VAC-120VAC 500VA (or are they 1K...hmmm Mark? you
remember?) and I want to test them to see if they work.
What should they read on an ohm meter?
I got an MOT and clipped off the 2 wires for the filament then connected the
sec lead around itself, still connected to the core.
I connected the primary leads in series with the 14KV PT and got......squat.
The voltage was discusting, I had to TOUCH the wires to get ANYTHING and I
coulldn't draw ANY kind of an arc. It looked like getting about 100V at
best.
Why?
In the past I have connected an MOT directly to the wall as long as I didn't
draw an arc, nothing happened. Pull an arc, couple seconds later, tip the
breaker. Tried connecting the big PT straight to mains and 2 seconds after
plugging it in, BEFORE I drew an arc, it tripped the breaker.
POO!
Why?
help, I'm confused (as usual)
Christopher A. Boden Geek#1
President / C.E.O. / Alpha Geek
The Geek Group
www.thegeekgroup-dot-org
Because the Geek shall inherit the Earth!
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn-dot-com