| lhgin |
Hi guys,
I've just got a Topaz Isolation Transformer, model 91001-11. It's capable of handling 240V/120V input and also output.
I can successfully connect it in US with no problems at all. When I brought it back to Malaysia, which is 240V, I'm having difficulties to get it to work. The unit is originally wired for 110V operation. How should I wire the primary and secondary to get it to work in 240V?
Please help.
Many thanks! |
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| cocolino |
You have four 115V windings on this transformer, two each for primary and secondary.
You must wire the 2 primary windings in series, the same for the 2 secondary windings (if You want to have 240V in as well out).
The picture below is the 230V/240V wiring scheme for a Topaz transformer.
I`m not 100% sure if the number notations for the winding end points are the same on Your transformer but IŽd rather suspect so.
Hope it helps. |
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| cocolino |
BTW:
did You unscrew those aluminium "faceplates" yet (behind which are located the screw terminals for the windings)?
If I remember okay there should be an adhesive tag on the inside of one (or both?) of this plates showing a wiring scheme and notations for the screw terminals, just like something as in the picture above. |
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| lhgin |
Thanks Cocolino for the help!
I opened it up and saw the windings. I'll try the windings as stated in your post. |
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