Parallet and Series transformer Setting problem

[weberluk]

Dear Sirs,

I have got a question, this is about series and parallet transformer
type. What's different of them? If I need the 10 Amp currency. The
parallet type is fit to use, the series type as same about. Even the
currency is equal. But the series VA just provide 150VA, not the 300VA.
Who can tell me what is problem? Almost book written the VA quite
important. I would like to know there different and should I use the
150Va and series type push the 10Amp equipment?
At now, I sharded my figtures and details.

http://www.geocities.com/weber_luk

I am looking forward to hearing from you soon, thank you very much.

Yours faithfully,

Weber Luk

[Al_The_Man]

If I understand you correctly, you want 24v at 300va then both arangements should give you that. The series connection give you 300va also, because you calculate them individually and add.
Al.

[weberluk]

Hi Al The Man,

I just know the currency is unable to change form series. Why did it add to 300VA? Did it keep the 150VA?

Weber

[weberluk]

Hi Man,

Why did not peoples written about series setting for transformer, they often posted the parallet format? I don't understand. If possible, I think it will got two low VA transformer and make as same effect about one transformer. Because was very different to looking for the big one and they are lightly expensive. I don't think so........

Weber

[Al_The_Man]

Both systems provide the curent required at the required voltage, therefore the total VA is the same.
Al.

[weberluk]

Hi Man,

Thank you very much, I understand what is mistake by me! It was because I forget the voltage in series. When the volt add to 24v after, and then I need to calculation the currency( I ) by voltage( V ). Final the VA as same about Parallet type.
Yes, I agree with you. Very basic founduation, even I forget that. It's very important. Thank you.

Weber