![]() This meter is designed for 3-wire services but not 120/240 single-phase services. ![]() Networking refers to using 2 phases and a neutral from a 4-wire wye three-phase bank to provide 3 wires similar to a single-phase service.A form 2S meter cannot deal with the three-phase phase angles present in this type of service.The form 12S meter is required for self-contained network metering. The form 2S meter is often misapplied on a 3-wire network system. This meter is designed to meter the standard 3-wire 120/240-V residential service.Ĭommon Mistakes. ![]() The meter socket is incorrectly wired the two wires from the inverter should be connected on the top two terminals of the socket, and the wires leading towards the customer’s load center on the bottom two terminals. This meter is designed to meter the standard 2-wire 120-V residential service.Ĭommon Mistakes. Typical form types for self-contained are designated 1S, 2S, 12S, and 16S and transformer-rated meters are designated 3S, 5S, 6S, and 9S. Whereas large industrial customers usually require transformer-rated meters, the term transformer-rateddenotes instrument transformers CT and PTs will be installed along with the meter. Meter Form Numbers and Socket ConfigurationsĬustomers with light to medium loads can be served with self-contained meters the term self-containeddescribes everything needed to measure the load is contained inside the meter.
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