question

kev-rm avatar image
kev-rm asked

Autotransformer with 120V input

What does the Autotransformer do with the 120V side if the input on the 240V side is 120V?


Autotransformer
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

3 Answers
snoobler avatar image
snoobler answered ·

It steps it up to 240V then center taps that coil for split phase 120/240V output.

From the datasheet:


1670220803929.png


1670220803929.png (53.8 KiB)
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

kev-rm avatar image
kev-rm answered ·

Interesting.. ok so basically wired that way, I can have 240v or 120v shore input power and single phase 120v back to house? (I really only need single phase.. but have a 120V generator and 240V shore power at the moment)

2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

snoobler avatar image
snoobler answered ·

Datasheet:

https://www.victronenergy.com/upload/documents/Datasheet-Autotransformer-32A-and-100A-EN.pdf

Unfortunately, I didn't completely understand your question.

If you had the two sources isolated and connected them individually, I believe you would get what you want.


2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.