Modular Transformer

[liaxx2023]

Does anyone ever had an experience working with a modular step down unit? Where the transformer and panels are in a single enclosure. How do we usually connect the meter on it?

 

[JoeStillman]

Are you asking about a utility meter?

 

[liaxx2023]

Are you asking about a utility meter?

Yes. I have 208V loads, but required to install a new 480V 200A meter and 480V 200A disconnect. Then, required to have a modular step down unit as well. Does this mean the configuration will be, utility transformer > new 480V 200A meter > 480V 200A disconnect > modular step down unit transformer > 208V loads?

 

[JoeStillman]

If the service is at 480V, then yes, that is the configuration. The utility won't want their meter to be downstream of a customer-owned transformer. If it was, the transformer losses would not get metered.

 

[augie47]

Be sure to check with your power provider. Many of them have particular requirements for their meter bases and, since you are dealing with a 480v service, some POCOs require a meter disconnect ahead of the meter,.

 

[tom baker]

Does anyone ever had an experience working with a modular step down unit? Where the transformer and panels are in a single enclosure. How do we usually connect the meter on it?

Look up a Square D Mini Power Zone, primary disconnect, xfmr, secondary panel in one enclosure.
But as pointed out our POCO requires disconnect ahead of meter for 480V

 

[hillbilly1]

It’s called “cold sequence metering”.