I'm using a 10kv ignition transformer for a jacob's ladder.
It works great! Currently though I've only tested it on its own circuit. But I would like to have this thing running in my lab. (I know not to run for more than a minute at a time due to ozone generation, and my lab is well ventilated)
However my lab is only one circuit, and I'm worried about the flyback from unplugging it harming my rpis, etc.
How do I isolate this thing / compensate for the flyback?
This transformer is old style, not like a solid state NST.
Best Answer
Your concern is valid as you are disconnecting an large inductive load. Easy way out is to buy an extension cord (with ground) that has MOV protected outlets, usually 4 to 6 of them. If active noise filtering is included (a X2 capacitor) that is even better.
Don't build what you can buy at low cost. Note that such an outlet may just use the words "Surge Suppression" without much detail. If possible buy one that offers details and is UL or cUL approved. Statements about fuse rating, clamp voltage and/or clamp current help insure quality.
Use this protected outlet to power your Jacob's Ladder. Any surge or back-emf will be stopped there.