Here is a small confusing discussion on transformers:

http://www.youtube.com/watch?v=bJd8606oNNk&feature=youtu.be


I thought all transformers provided voltage gain..........or reduction.


"+John Emmerson Transformer do NOT add gain, that's a physical impossibility for a passive component, you are talking nonsense. If transformers provided gain, then the electric utility companies would be out of business. Every transformer has a loss factor, due to heat, eddy currents etc."

 

Just get specific about which gain. A transformer can't do power gain, but the voltage and current are entirely negotiable.

Edit: Do you think anybody is going to watch 38 minutes of video to find the context for one statement?
Don't answer that.

 

Here is a small confusing discussion on transformers:

http://www.youtube.com/watch?v=bJd8606oNNk&feature=youtu.be


I thought all transformers provided voltage gain..........or reduction.


"+John Emmerson Transformer do NOT add (missing qualifier) gain, that's a physical impossibility for a passive component, you are talking nonsense. If transformers provided gain, then the electric utility companies would be out of business. Every transformer has a loss factor, due to heat, eddy currents etc."

Emmerson's quote doesn't say voltage gain; it just says gain. He's talking about power gain.

Edit: #12 beat me to it.

 

Thank you, Gents.

I'll have to re-read the transformer section.

Again and again.........

 

I thought it was easy to understand:

Power in = available power out - loss

Voltage out = ratio of windings * voltage in
Current out = voltage out over load

 

Now now, we all have weaknesses. No showing off.