Using UK equipment in USA

fatcat posted:

Innocent Bystander posted:

fatcat posted:

Allante93 posted:

A couple of Authorized Dealers, suggest it was ok, by letting me know, they could have it converted from 230 to 115.

Not 100% certain, but converting from 230v to 110v will effectively reduce the number of primary windings by half. Surely this is effectively the same as using a transformer that is half the size. Probably not a good thing.

 Although I could be wrong.

No, half the voltage means twice the current for the wame power, so wire twice the size! Net effect probably similar dimensions for the winding.

In this case we’re talking about converting a 240v transformer for use with 110v. The wire gauge is what it is, it can’t be increased. (Or should that be increased.)

Would this have any implications with regards the power the transformer could deliver. Would it be reduced.

You don't actually convert a transformer to use with 110v. Either it has two primary windings, that for 240v are used in series and 120 v used in parallel (same product of current and voltage) (if the maximum power drawn is less than half the maximum the series 240v winding can take, then you could just use a single 120v winding) , or you change the transformer. The twin primary winding is a very common approach by manufacturers wanting to service different markets, and is a simple conversion, and sometimes is enabled by a simple changeover plug or link or switch on the back plate 

Thanks for the explanation.

I know there are two 120v windings wired in series for 240v, but I didn't know they where wired in parallel for 110v, I assumed one winding became redundant.

Simon-in-Suffolk posted:

badlands posted:

..You cannot just connect UK spec equipment to a US 240 volt circuit.

Why? - some of the world uses 240volt 60Hz as standard - I am not aware of any warnings of any domestic equipment designed for 50Hz saying it cant run at 60Hz. In some countries you have a mixture of 50Hz and 60Hz and I have never seen variants of consumer products for these different specs and it could be a real PITA with shops having to stock two variants - one for 50Hz and one for 60Hz and I suspect most consumers in those countries wouldn't even know what their utility frequency was.

I have checked my Cyrus manuals - there is no mention of utility frequency - just that the device is either set for 230V (220-240)  or 115V  (110-120).......

Contact Cyrus for the explanation, that's what I did, or the US distributor for the correct explanation. I don't really remember the specifics, but I was told that the transformers are completely different because of the voltage difference, and that you definitely couldn't just plug in a UK spec amp into an US 240 volt spec outlet.

I was also told that the transformers for US spec amps are of much higher quality than those used in the UK, I know it sounds strange, but that's what was told to me. Whether it's true or not, I have no idea, just giving you my input of what was expressed to me.

Innocent Bystander posted:

You don't actually convert a transformer to use with 110v. Either it has two primary windings, that for 240v are used in series and 120 v used in parallel (same product of current and voltage) (if the maximum power drawn is less than half the maximum the series 240v winding can take, then you could just use a single 120v winding) , or you change the transformer.

{The twin primary winding is a very common approach by manufacturers wanting to service different markets, and is a simple conversion, and sometimes is enabled by a simple changeover plug or link or switch on the back plate}

I would think the latter would be the case, in which the same transformers are used in the UK & US versions. 

In my case, the SC is of interest!

Allante93!

Allante93 posted:

Innocent Bystander posted:

You don't actually convert a transformer to use with 110v. Either it has two primary windings, that for 240v are used in series and 120 v used in parallel (same product of current and voltage) (if the maximum power drawn is less than half the maximum the series 240v winding can take, then you could just use a single 120v winding) , or you change the transformer.

{The twin primary winding is a very common approach by manufacturers wanting to service different markets, and is a simple conversion, and sometimes is enabled by a simple changeover plug or link or switch on the back plate}

I would think the latter would be the case, in which the same transformers are used in the UK & US versions. 

In my case, the SC is of interest!

Allante93!

Since, I'm on the Padded Cell, I also liked your previous reply, but it was on the Hi Fi Corner Then.

That's when my Alert notifications, went bonkers!

Allante93!