File talk:Line-Interactive UPS Diagram.png

Taps in wrong order?
Assuming that there are an equal amount of windings on the primary and secondary, and that the output should be 120 volts, shouldn't the taps on the primary be in the reverse order? Ilikefood (talk) 22:58, 27 August 2008 (UTC)

Just what I was going to say. Either the transformer needs to be flipped around so there's multiple taps on the output (but of course you'd select the one that's 120V), or the order needs to change on the input so that more windings in the primary is a step-down (it would start with over 120V) while fewer windings would be a step-up. Dsm (talk) 01:42, 18 June 2009 (UTC)

Image depicts (wrongly by the way) a standard transformer, not an autotransformer like the text implies
The text is explaining how autotransformers are used for the purpose. But the image instead depicts a normal transformer with two coils (See Autotransformer).

Also the description of a normal transformer is incorrect as the author has confused how the voltage is stepped up and down. Furthermore I think the multiple taps are normally placed on the secondary side but I'm not sure if this is always true.

The image is a good ettempt to make a graphical explanation that is easy to understand. But it should be scientifically correct.


 * The transformer is indeed not an autotransformer. The transformer itself does need to be flipped either horizontally or vertically.  For the range over which these devices work, either would be acceptable, but froma strictly electrical perspective, the preference would be to fip vertically. 20.133.0.13 (talk) 08:55, 11 September 2009 (UTC)