single phase boost transformer

[tommy brbooks]

I have wired three 240 /32 buck / boost transformers in boost configuration, with 247 vac input I get 354 volt output. I have 23 amp load at breaker panel with no load on 354 volt terminals. Is this 23 amp load expected??
tommy brooks

 

[tommy brbooks]

Left out a little info. The transformers are 10 kva, 1.5 kva and 1 kva.
tommy brooks

 

[ptonsparky]

Are they serving the same machine or load?

Why do you have three different sizes?

What is the load you are boosting? 10, 5, 20 Amps?

What is your voltage goal?

 

[gar]

181007-2365 EDT

tommy brbooks:

Break your circuit into pieces. 23 A should not be expected.

1st. Remove all the boost primaries. What is current at breaker panel? We expect zero.
2nd. One at a time connect a boost transformer and record the current. Do this with the secondaries unconnected to each other even though this should make no difference

Report back.

Also I assume your transformer secondaries are in series. The measured voltage would seem to imply this. Because you describe these as buck/boost I also assume this means the secondaries are isolated from their primary.

.