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Author Topic: Transformers 110v ac to 240v ac  (Read 3391 times)
merkland
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« on: October 16, 2008, 10:22:22 AM »

List,

I have a salvaged 3Kva lister generator which I thought was 240v ac but has turned out to be only 110v.
Can anyone tell me whether it is safe and possible to use a 110v site transformer in reverse to give me 240v and, if so, how much of my 3Kva will I lose in the process?

merkland.
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200w wind turbine grid tied, 1x175w PV grid tie or to batteries,
2x55w PV to batteries, 24vx440ah battery bank. 3.5Kw grid tie (14xSanyo 250w facing 160degrees at 80 degrees inclination, Aurora 3.6 inverter), 2xflat panel water heating (for over 30 years )
Alan
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« Reply #1 on: October 16, 2008, 10:36:00 AM »

No probs

If the generator has a yellow socket.

Dont use a yellow plug, bit of cable and another yellow plug
Some one could pull out the yellow plug at the transformer and the male pins would be live.

fit a gland on the transformer and wire direct to the transformer.


Dont connect the earth pin on the transformer to the metal work on the generator unless the generator has a yellow socket allready fitted.

losses about 2 - 3 %

regards

Alan
« Last Edit: October 16, 2008, 10:46:50 AM by Alan » Logged
renewablejohn
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« Reply #2 on: October 16, 2008, 12:35:05 PM »

Check your generator plate. I recently purchased a Tower light because the generator plate said it was 3 phase even though it was wired for 4 x 110v tower lights. I have now had the 110v disconnected and a 3phase socket and separate 240v socket installed.
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merkland
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« Reply #3 on: October 16, 2008, 02:57:34 PM »

renewablejohn and Alan.

Thank you for your replies, I will now go ahead and get the transformer.

merkland.
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200w wind turbine grid tied, 1x175w PV grid tie or to batteries,
2x55w PV to batteries, 24vx440ah battery bank. 3.5Kw grid tie (14xSanyo 250w facing 160degrees at 80 degrees inclination, Aurora 3.6 inverter), 2xflat panel water heating (for over 30 years )
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