[AMPS] ALPHA 77SX on 50Hz

[Barry Kirkwood]

Yes,
I think you need to be careful when running up over 1kVA or so full load,
but would be very surprised if problems showed up with magnetising current
alone.
Have once or twice in 50 years encountered problems with smaller
transformers on 60/50 transition, but suspect they were bad transformers
even on 60hz.
73
Baz
end
Barry Kirkwood PhD ZL1DD
Signal Hill Homestay
66 Cory Road
Palm Beach
Waiheke Island 1240
NEW ZEALAND
www.waiheke.co.nz/signal.htm
----- Original Message -----
From: Vic Rosenthal <rakefet@rakefet.com>
To: <amps@contesting.com>
Sent: Sunday, 08 April, 2001 8:57 AM
Subject: Re: [AMPS] ALPHA 77SX on 50Hz


>
> Barry Kirkwood wrote:
>
> > I have never heard of a transformer burning out with just magnetising
> > current on 50Hz when it would run cool on 60Hz.
> > Did you call Peter Dahl on April 1st?
>
> No, it wasn't April 1.  I too have used 50/60 Hz equipment such as the
SB200 on
> 50 Hz without any trouble.  I've also used 115v/60 Hz. US gear with
step-down
> transformers on 230v/50 Hz.  However, larger transformers can be built for
60
> Hz. only and in the case of the transformer rated at approximately 3kva
CCS
> which I used, Dahl told me that a 50 Hz. rating was neccessary.
>
> 73,
> Vic, K2VCO
> Fresno CA
>
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>


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