Hi, I have two identical 3 phase high voltage transformer (each around 4KVA / 50 kg/ 100 pounds). Issue is they are designed for US 3 phase voltages. (so 120 / 204V) so can't use them in Europe as is
Carel, what is your primary voltage there? Do you have three phase primary power? 73, Gerald K5GW In a message dated 10/25/2011 1:11:15 P.M. Central Daylight Time, pc5m@xs4all.nl writes: Hi, I have t
Hi. The problem is the primaries. You'll need to either have a third transformer as a step down (from EU to US voltages) or separate the common (star) point of each transformar primary, and wire them
Hi Gerald, We have here 400V 3 phase power (voltage between the phase's) and as a result 230V between a phase and ground. So the lowest voltage I have "available" is 230Vac... gl, Carel. your primary
Carel, I think what you were originally suggesting might work, as long as you have access to both sides of each primary winding. If you call the phases Red (R), Yellow (Y) and Blue (B) as we used to
Hi Mike. back feeding from one secondary to the other may not be such a bad thing. That would force the primary voltage division to the two transformers to be exactly what is needed for equal seconda
That depends on the impedance of the power source. If it is very low this balancing effect would be minimal and there would be current flow between the secondaries. I have a 5kW plasma generator whic
Bill, Dave, Mike, Gerald Thanks all for the good advices !. Looks like it all "depends" and some hands on experiment is mandatory :-). It seems I don't need to scrap the transformers yet... Think I w
What are the European 3 phase voltages? I remember using 308 for something at work, but that's it. 73 Roger (K8RI) _______________________________________________ Amps mailing list Amps@contesting.co
Hi Bill, if the primaries were connected in parallel, I would agree with you. But, the in discussion case, the transformer primaries will be connected in series which forces the primary current to be
Author: Anthony R. Gold <ham-radio-mail-lists@ahjg.co.uk>
Date: Mon, 31 Oct 2011 18:45:52 +0000
My London home has Y or star network wired power with 240V phase to neutral and 415V phase to phase. _______________________________________________ Amps mailing list Amps@contesting.com http://lists
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Tue, 01 Nov 2011 23:59:41 +0000
Though the UK is now officially using 230 V phase to neutral, which is 398 phase to phase, so I guess you would call it 230/400. 3 phase is quite unusual for domestic properties in the UK, though I t
Author: Anthony R. Gold <ham-radio-mail-lists@ahjg.co.uk>
Date: Thu, 03 Nov 2011 01:12:38 +0000
That is a common misconception. For the purpose of harmonizing the markets in domestic appliances all countries in the Eu were required to move to a domestic power supply of 230V +- 6% @ 50Hz by 2008