Now Microwave oven transformers which i will refer to from here on in as MOT's have been a keystone for beginners and advanced high voltage hobbyists alike for as long as I personally can remember. And as fun and as simple as these deadly but wonderfully robust transformers are, it is possible to get more technical into them. In future instructables that I shall be making I shall cover such things as MOT welders, High current for HHO production, MOT PSU's capable of a kilowatt of power. In this instructable however i shall detail the steps behind making measly MOT arcs into HUGE arcs utilising the magic of resonance (not real magic) And then furthering that with a little thing call power factor correction which i will refer to as PFC and ballasting which i will refer to as.. ballasting.
FOR MORE CONTINUE TO STEP (1)
VIDEOS ON THE LAST STEP OF LONG RESONANT ARCS AND SHORTER STABLE ARCS USING POWER FACTOR CORRECTION AND BALLASTING!
Also as this is my first instructable constructive criticism and feedback is most certainly welcome. please no negativity :)
Step 1: Obtaining the parts!
Now then, I shall list the components... now:
1) You will need two or three MOT's, Three is better as you can use one as ballast.
2) An appliance that you may use as ballasting for your transformers. A hair dryer or a toaster works anything like that, this is only if you can only find two MOT's
3) 4 Microwave oven capacitors which i shall refer to as MOC's (These are the key in the resonant side of things)
4) A motor start capacitor or something of similiar value. to use as a PFC capacitor, for >230 Volts use about 20uf and above 300 Volts. and for the 120 Volt people use 80uf rated for >200 Volts. Must be AC type capacitors!
5) A 10-15 amp Circuit Breaker ( For Safety)
6) A 120-240 Volt Rated switch
7) Lots of wire including a 3 pin grounded wall plug.
8) A 2 foot long (minimum) Piece of PVC or insulating electrical conduit ( To be used as a 'chicken stick' )
9) A Wooden Base for it to go on!
10) Dark sunglasses or a welders mask! Arcs are bright! and will damage your eyes!
11) most importantly, common sense!
Also as a heads up, the wire, the MOC's, the MOT's and the grounded plug can all be salvaged from a microwave. Be sure to strip it entirely, there's two strong magnets in the magnetron there's diodes to be used in a MOT Doubler, there's switches fuses resistors lots of wonderful stuff!
The picture below is my current arcing set-up. Not configured for drawing long resonant arcs but shorter stable arcs. I will add a video of this soon. two of the MOT's are for ballast.