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terminology for apartment style 120/208V meters

terminology for apartment style 120/208V meters

terminology for apartment style 120/208V meters

(OP)
What is are good terms for differentiating polyphase meters and household style meters? Household meters are either standard 120/240V single phase meters or they are an apartment style service which comes off of a 3 phase grounded wye bank, and each apartment only uses two phases and a neutral for feeding each "two phase" 120/208V meter. The apartment style service is very similar to standard single phase service, but calling it single phase is technically incorrect. Unfortunately many small businesses are connected to 120/240 V and 120/208V services, so calling this style a "household" meter is also technically incorrect.

An example usage would be:
“single phase meters collect interval data every 60 minutes whereas polyphase meters collect data every 5 minutes.”
The best suggestion so far is:
“2s and 12s meters collect interval data every 60 minutes whereas 3s, 4s, 8s, 9s, 15s, and 16s meters collect data every 5 minutes.”

RE: terminology for apartment style 120/208V meters

ANSI calls your apartment service an "open wye circuit" with a "network" meter. Hard to go wrong with the meter forms, though.

RE: terminology for apartment style 120/208V meters

(OP)
Most of the folks in the audience for this description are non technical folks who have no idea what the various meter forms mean. We have a grid network system with a mixed "network" meters and 3 phase meters, so I think using "network" might cause even more confusion.

RE: terminology for apartment style 120/208V meters

The ANSI descriptions pre-date AMI.

“Single phase and open wye meters collect interval data every 60 minutes whereas polyphase meters collect data every 5 minutes.”

You may need to explain what open wye is and where it is used, but you'll be technically correct.

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