3 phase 208 to single phase

[wire monk]

The transformer feeding the building is 3 phase 3 wire 120/208 and we want to put 4 meters on the building single phase 2 wire 120/
208 single phase 2 wire to each meter can it be done??

 

[Dennis Alwon]

The transformer feeding the building is 3 phase 3 wire 120/208 and we want to put 4 meters on the building single phase 2 wire 120/
208 single phase 2 wire to each meter can it be done??

Sure but the load won't be balanced on the phases so you would have to make sure the trany is large enough for the loaded phases.

AB BC AC then choose another...

 

[iwire]

Do yourself a favor and buy a meter stack for this and the meters sockets will have to have a 5th terminal

 

[infinity]

How can you have a 3 phase 3 wire Wye system and get 120 volts?

 

[SEO]

He forgot to say 4 wire.:smile:

 

[wireguru]

other than maybe saving a little bit of money on the gear, what is the benefit of doing this?

 

[LarryFine]

The transformer feeding the building is 3 phase 3 wire 120/208 and we want to put 4 meters on the building single phase 2 wire 120/
208 single phase 2 wire to each meter can it be done??

Yes, and I've done it. (It will be four wires, like the guys said.) The voltage in each panel will be 120/208, not 120/240. so make sure all "220v" loads are rated for 208v also.

Try to make sure the two smallest loads are the ones that are connected to the same two phases. You can order a stack that way, or field-re-connect them yourself.

 

[beanland]

Standard Apartment

Standard Apartment

That is common. Take a 208Y/120V 3-phase 4-wire service and feed a meter rack. Each meter is "V"-phase meaning 120/208V 3-wire with 120V, 120V and 208V. This is a common installation in many apartments where the utility wants a 3-phase service and the tenants only need single-phase. Like mentioned above, make sure applicances are the 208V versions (water heater, range, oven, dryer, etc.).