HV Transformers

Discussion in 'General Electronics Chat' started by Overclocked2300, Oct 10, 2005.

  1. Overclocked2300

    Thread Starter Senior Member

    Apr 24, 2005
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    0
    Well I recently Salvaged a Microwave Transformer, smaller than usual though, but I want to put power to it. I know I'll get 2000kV out, but I have an idea.

    I have 2 120 to 44.5V Transformers that are capable of only 1Amp or so(I really dont know) So I was thinking that if I hooked them up like this:

    120 to 44.5 resistor 44.5 to 120

    I would have an isolation transformer. Now the purpose of the resistor is so I dont fry myself in the process or cause a circuit to blow,since Ive read these things can blow a 20Amp circuit breaker. The current will be limited to around 5mA.
     
  2. n9xv

    Senior Member

    Jan 18, 2005
    329
    1
    The resistor will fry simply by turning on power to the transformer! A much better way to limit the current would be to double fuse the 44.5-VAC windings. One in each leg. If thats 44.5 Volts @ 1-Amp, I would try to fuse it for 2-Amps or less for experimental purposes. Actually, I would fuse the 120-VAC from the wall outlet lest the whole experiment go arrye! The 2-kV is still very leathal! What are you going to do with 2-kV?

    I did some experimentation with a similar transformer and could spike the secondary up to almost 5-Kv by pulsing the primary with a 9-VDC battery!
     
  3. Overclocked2300

    Thread Starter Senior Member

    Apr 24, 2005
    124
    0
    No it wont, In a capactive filtering circuit when power is first switched on all that is seen is a dead short so how would a resistor fry? Sure it would fry if I had too much current and exceeded its power rating.

    I need 2kV For a jaccobs ladder or experimentation to make one or other HV stuff..
     
  4. n9xv

    Senior Member

    Jan 18, 2005
    329
    1
    In your origional post you did not specify any kind of capacitive filtering. What are you filtering between the 44.5-VAC windings? For an isolation transformer setup, it should be a simple direct connection.
     
  5. Overclocked2300

    Thread Starter Senior Member

    Apr 24, 2005
    124
    0
    I dont want to turn it into DC. The Resistor is there because I perfur it not to be on the 120 Side. Anyway A transformer only supplies what is taken from it.
     
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