Meter for use with a distributed energy resource device
An electric meter includes a housing, a first set of connection paths, and a second set of connection paths. The first set of connection paths couple to a meter socket and are electrically coupled to a first electrical connection path between first phases of an electric distribution power source, a distributed energy resource device, and a load. First electrical metrology components of the first electrical connection path are positioned within a first segment of the housing. The second set of connection paths couple to a meter socket and are electrically coupled to a second electrical connection path between second phases of the electric distribution power source, the distributed energy resource device, and the load. Second electrical metrology components of the second electrical connection path are positioned within a second segment of the housing that is non-overlapping with the first segment of the housing.
1. An electric meter, comprising:
a plurality of first electrical metrology components including a first line busbar, a first line current transducer positioned around the first line busbar, a first DER busbar, a first DER current transducer positioned around the first DER busbar, a first load busbar, and a first load current transducer positioned around the first load busbar; and
a plurality of second electrical metrology components including a second line busbar, a second line current transducer positioned around the second line busbar, a second DER busbar, a second DER current transducer positioned around the second DER busbar, a second load busbar, and a second load current transducer positioned around the second load busbar; and
wherein the first electrical metrology components and the second electrical metrology components are symmetrically arranged in the electric meter so that the first electrical metrology components are positioned on a first side of the electric meter and the second electrical metrology components are positioned on a second side of the electric meter that is non-overlapping with the first side of the electric meter.
2. The electric meter of claim 1 , wherein a first electrical connection path includes the first line busbar, the first DER busbar, the first load busbar, and a first DER disconnect switch, and a second electrical connection path includes the second line busbar, the second DER busbar, the second load busbar, and a second DER disconnect switch.
3. The electric meter of claim 1 , wherein the first electrical metrology components include at least one first interconnect busbar that interconnects the first line busbar, the first DER busbar, and the first load busbar, and the second electrical metrology components include at least one second interconnect busbar that interconnects the second line busbar, the second DER busbar, and the second load busbar.
4. The electric meter of claim 1 , wherein the first electrical metrology components and the second electrical metrology components of the electric meter are separated with an air gap, a physical boundary layer, or a combination of both.
5. The electric meter of claim 1 , wherein the electric meter further comprises a set of mating connectors that comprises:
a first line mating connector connected to the first line busbar;
a second line mating connector connected to the second line busbar;
a first DER mating connector connected to the first DER busbar;
a second DER mating connector connected to the second DER busbar;
a first load mating connector connected to the first load busbar;
a second load mating connector connected to the second load busbar; and
a neutral load mating connector connected to a voltage measurement circuit of the electric meter.
6. The electric meter of claim 5 , wherein the set of mating connectors are installable within a 14S meter socket, a 15S meter socket, or a 16S meter socket.
7. An electric meter comprising:
a first electrical connection path that connects a first line mating connector, a first DER mating connector, and a first load mating connector, wherein the first electrical connection path includes a plurality of first electrical metrology components including a first line busbar, a first line current transducer positioned around the first line busbar, a first DER busbar, a first DER current transducer positioned around the first DER busbar, a first load busbar, and a first load current transducer positioned around the first load busbar; and
a second electrical connection path that connects a second line mating connector, a second DER mating connector, and a second load mating connector, wherein the second electrical connection path includes a plurality of second electrical metrology components including a second line busbar, a second line current transducer positioned around the second line busbar, a second DER busbar, a second DER current transducer positioned around the second DER busbar, a second load busbar, and a second load current transducer positioned around the second load busbar,
wherein the first electrical metrology components and the second electrical metrology components are symmetrically arranged in the electric meter so that the first electrical metrology components are positioned on a first side of the electric meter and the second electrical metrology components are positioned on a second side of the electric meter that is non-overlapping with the first side of the electric meter.
8. The electric meter of claim 7 , further comprising:
at least one neutral connection path that connects a neutral mating connector to a voltage measurement circuit of the electric meter.
9. The electric meter of claim 7 , wherein the first electrical metrology components include at least one first interconnect busbar that interconnects the first line busbar, the first DER busbar, and the first load busbar, and the second electrical metrology components include at least one second interconnect busbar that interconnects the second line busbar, the second DER busbar, and the second load busbar.
10. The electric meter of claim 7 , wherein the first electrical metrology components and the second electrical metrology components are separated with an air gap, a physical boundary layer, or a combination of both.
11. The electric meter of claim 7 , wherein the first electrical connection path includes a first DER disconnect switch, and the second electrical connection path a second DER disconnect switch.
12. The electric meter of claim 5 , wherein the first line mating connector, the first DER mating connector, the first load mating connector, the second line mating connector, the second DER mating connector, and the second load mating connector are installable within a 14S meter socket, a 15S meter socket, or a 16S meter socket.