Rewound MOT Shorting Sparks

Decided to grab my MOT out, and wound it with 3 turns of thin-ish wire. The rest is pretty self explanatory.
I did actually forget to plug the transformer in at the start, and the first spark scared the cr@p outta me!

Category:

Science & Technology

Tags:

• MOT
• microwave
• oven
• transformer
• rewound
• winding
• spark
• arc
• high
• current
• AC
• weld

[dzdice]

yeah... i just broke the primary of my MOT trying to figure how to rewind my secondary.... and still everything is glued together... :\ well.. at least now i know i can rewind the entire MOT from scratch... 48v 26amps that's more than enough and all i need..! :)

[LPFthings]

@dzdice Let me know how you go, rewinding the primary is a hell of a job, and fitting that may turns on there again is usually an issue.

[LPFthings]

Hours and hours with a hacksaw, screwdriver and hammer :)

I started off by cutting off the exposed part of the winding, then using the screwdriver and hammer to knock the parts out of the core.

[hitachi088]

finished mine: 17volt 75amp~. it was a small MOT i got from a small microwave in the garbage.

[juniortore1]

@animebsd Mine only takes like 15 minutes to take the old secondary out. All I do is stick the MOT in the vise, hacksaw one exposed side of the winding out, and hammer out one side of the old coil at a time. I will make a video of it when I make my next high current transformer, since my last one got fucked up, shorted and bunt out in a big ball of smoke.

[animebsd]

@LPFthings lol cool

mine took only like 45 min

i used a chizel

[jonathanmlang]

You could use that as a spot welder!

[Twizt3dArc]

How did you remove the original winding from the transformer?