Early Three Phase Open Delta ???

[Joethemechanic]

Looks like some kind of polyphase. Must have been a very state of the art installation at the time. I love the transformers mounted on the barn wall near the ground

 

[synchro]

It looks like there might be a third transformer behind the motor. If so, then it could be configured in a closed delta on the primary side.

 

[Joethemechanic]

It looks like there might be a third transformer behind the motor. If so, then it could be configured in a closed delta on the primary side.

Yeah I can see it now after I enlarged it. Good eye. What's your estimate of the year? I found it online without any info

 

[tortuga]

Nice find, looks like each transformer is connected to the center wire on the primary side.
probably something like 550V to 220V delta.

 

[Joethemechanic]

Manitoba 1946