167V

[petersonra]

Well, I have to test a new loadbank that runs at 167V across the elements. It is somewhat of an unusual voltage.

Any ideas on how to get 167V (or something close) from common transformers? I do not have money to buy transformers so it would be nice if I could rewire something I have. 120kw or there abouts.

I have 208 and 480 available.

 

[Jljohnson]

How about a 16/32 volt secondary transformer configured at to buck 32 volts from your 208 volt supply, should come in around 176 volts.

 

[iceworm]

Well, I have to test a new loadbank...

I do not have money to buy transformers ...

120kw or there abouts. ....

Job scope is to test the load bank
120kw is non-trivial
Job does not have any funding.

Using precise engineering terms - you're hosed.

ice

 

[iceworm]

Or maybe not

1ph or 3ph?
If 3ph, 167D or 289Y?

I don't have an answer yet - just thinking.

ice

 

[Jraef]

Do you have any budget money at all? Seems kind of problematic to be expected to test something at 718A (or 415A if it is 167V 3 phase) with zero budget. What transformers to you already have?

 

[petersonra]

Do you have any budget money at all? Seems kind of problematic to be expected to test something at 718A (or 415A if it is 167V 3 phase) with zero budget. What transformers to you already have?

I have a vague recollection about using elements in series on 480V, but now I cannot get that to come out right. I will have to go back and see if my notes are any help.

 

[petersonra]

I went back and looked at my notes.

If I bump the building 480V to 500V and wire 3 elements in series on each phase, they will see 167V across each element.

I knew I must have had some kind of plan, but I just could not recall what it was.