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RE: isolation transformer grounding issue

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In Reply to: RE: isolation transformer grounding issue posted by vinnie2 on June 27, 2018 at 10:01:23

"Your drawing shows the transformer housing grounded on the input side if I am reading it correctly."

The difference is that in your situation you have only a transformer. The drawing assumes there is some metal box housing the transformer. For safety that metal box should be grounded. Further, the ground on the primary side is connected to the ground on the secondary female receptacle and any metal box would be connected to that common ground.

In your photo I see only two wires going into the female receptacle from the secondary: I don't see any connection to the ground. That's not correct. The ground wire from the primary side cable must be connected to the female receptacle ground.

Follow Ups:

RE: isolation transformer grounding issue - vinnie2 17:50:30 06/27/18 (6)
Roger on that. It's hard to see in the photo, but bottom center is the end of a green wire with a yellow terminal on it. That will be connected to the female ground via another wire. Is there any reason why I shouldn't ground the housing of the transformer, or is that totally unnecessary?
- RE: isolation transformer grounding issue - Palustris 05:57:59 06/28/18 (1)
  Vinnie, I think that a much safer female for the secondary side would be one as illustrated below. You don't need to ground the transformer but put the whole thing in a box or behind a panel with the female connector protruding on a 16 Gauge extension cord cable that has all three wires in a rubber sheath.
  - RE: isolation transformer grounding issue - vinnie2 07:38:01 06/28/18 (0)
    Roger on that. That has been the plan all along. Just trying to get the hookup order correct before putting it in an enclosure. Thanks.
- Quote Palustris - Uncle Mike 04:56:37 06/28/18 (3)
  "The drawing assumes there is some metal box housing the transformer. For safety that metal box should be grounded."
  Vinnie you need to pay attention. Also that Rube Goldburg you have needs to be cleaned up.
  - RE: Quote Palustris - vinnie2 07:46:06 06/28/18 (2)
    Uncle Mike, you need to read my posts before you reply to them. I said I was planning on putting it in a case when I had the wiring right. If I build a wooden case grounding the transformer might be a good idea, that's why I asked. As for the Rube Goldberg part, don't be so quick to jump to conclusions. That is the way I found it at the hamfest. I never said I was planning on leaving it that way.
    
    Edits: 06/28/18 06/28/18 06/28/18
    - RE: Quote Palustris - Uncle Mike 14:36:27 06/28/18 (1)
      Vinnie
      You are right, always right, do lovely work and everything you do is spot on correct.
      Myself I would be ashamed to post a picture of that kind of work no matter what stage but I'm not the expert you are.
      
      Edits: 06/28/18 06/28/18
      - RE: Quote Palustris - vinnie2 14:48:38 06/28/18 (0)
        
        In Reply to: RE: Quote Palustris posted by Uncle Mike on June 28, 2018 at 14:36:27
        
        What part of "this is the way I found it at the hamfest" did you not understand? I haven't DONE any work yet.
        
        Edits: 06/28/18

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