Transformer as a Relay

156

02:40:30

I was playing with transformers tonight and i noticed it could be used as a relay.... Sort of. The off current will never be 0A but it will be quite small when the transformer's secondary is unloaded. Once you close the switch e.g. load it, more current will flow through the load, as the transformer strives to meet the requirement. 

published 10 years ago

yra

10 years ago

Good job bugger, I've seen this by accident. Never thought about why.

ferlop

10 years ago

If you add a voltage source in series with the switch and reduce the turns to 100 or less in the secondary, you have dimming control, it acts as a magnetic amplifier.

thebugger

10 years ago

Magamps don't work here. Something to do with the core saturation.

ferlop

10 years ago

I said it acts like!

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