MICROWAVE TRANSFORMER TO TRANSFORM MAIN 240VAC T0 110VAC

Thread Starter

dadadiouffy

Joined May 4, 2020
66
Hi there, I want a lower of 110/120vac power from 240vac main, I was thinking of removing the secondary coil of microwave transformer and rewind it with a 0.5mm stranded wire. keep checking with multi-meter till I got around 110/120vac. The problem I don't know about the current as I don't have a clamp meter to check. Is this way will work?
 

MaxHeadRoom

Joined Jul 18, 2013
20,936
A simple way to determine turns/volt is when you have removed the secondary, wind 10 turns on, measure the voltage and extrapolate the T/V from this.
Use double the wire gauge of the primary for the final secondary winding.
Remove/drive out any magnetic shunt bar that is originally fitted.
Max.
 

Alec_t

Joined Sep 17, 2013
11,419
Be aware that the microwave transformer may be rated for short term use only and could self-heat under prolonged use.
 
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