Meter socket adaptor

Patent metadata

Field	Value
Publication number	US-9735527-B2
Application number	US-201615356365-A
Country	US
Kind code	B2
Filing date	Nov 18, 2016
Priority date	Apr 30, 2015
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

This disclosure pertains to methods and apparatus for interfacing an onsite power generation system with an existing main electric panel. The interfacing is performed by: attaching an additional jaw connector to a neutral bridge within an existing meter socket; wiring AC supply lines from the onsite power generation system to load side jaws of a multi-blade meter socket adapter; and wiring a neutral line from the onsite power generation system to an additional terminal of the meter socket adapter. The lines from the onsite power generation system are routed through an opening formed in the meter socket adapter. The meter socket adapter is then inserted into the meter socket so that five jaws in the socket receive all five blades of the meter socket adapter. The blades of the meter are then plugged into the jaws on the opposite end of the meter socket adapter.

First claim

What is claimed is:

1. A meter socket adapter for interfacing an on-site power generation system with an electrical service panel, the meter socket adapter comprising:
an adapter housing configured to receive a portion of an electrical meter and comprising a wall having an exterior-facing surface and an interior-facing surface;
a plurality of connectors extending through the wall, each of the plurality of connectors comprising:
a blade connector portion projecting from the exterior-facing surface of the wall, the blade connector portion configured to connect to a corresponding jaw connector in a meter socket of the electrical service panel, and
a jaw connector portion projecting from the interior-facing surface of the wall, the jaw connector portion configured to receive a corresponding blade connector of the electrical meter; and

a neutral terminal electrically coupled to the blade connector portion of one of the plurality of connectors, the neutral terminal being configured to receive a neutral wire from the onsite power generation system.

2. The meter socket adapter of claim 1 , wherein the onsite power generation system comprises a photovoltaic array.

3. The meter socket adapter of claim 1 , wherein two AC supply lines are coupled to the plurality of electrical connectors and the two AC supply lines comprise AC phase 1 and AC phase 2 respectively.

4. The meter socket adapter of claim 1 , wherein the plurality of connectors of the meter socket adapter are arranged in a symmetric configuration.

5. The meter socket adapter of claim 4 , wherein the connector electrically coupled to the neutral terminal extends through a central portion of the wall.

6. The meter socket adapter of claim 1 , wherein the adapter housing defines multiple openings configured to accommodate the blade connector portion electrically coupled to the neutral terminal.

7. The meter socket adapter of claim 1 , wherein the first end of the adapter housing has a size and shape in accordance with a standard meter socket.

8. A method of interfacing an onsite power generation system to an existing electrical service panel via a meter socket adapter, the method comprising:
removing a utility meter from a meter socket of the existing electrical service panel to expose a meter socket;
electrically coupling a jaw connector to a neutral wire terminal inside the meter socket;
connecting a neutral wire from an onsite power generation system to a neutral terminal in the meter socket adapter, wherein the neutral terminal is electrically connected to a blade connector of the meter socket adapter;
plugging a first side of the meter socket adapter into the meter socket so that the blade connector electrically coupled to the neutral terminal is connected to the jaw connector coupled to the neutral wire terminal inside the meter socket and so that four other blade connectors of the meter socket adapter are connected to four corresponding jaw connectors in the meter socket; and
plugging four connectors of the utility meter into four jaw connectors in the meter socket adapter by inserting the utility meter into an opening defined by a second side of the meter socket adapter.

9. The method of claim 8 , wherein the onsite power generation system comprises a photovoltaic array.

10. The method of claim 8 , further comprising connecting at least two AC power supply lines from the onsite power generation system to respective first and second load side terminals of the meter socket adapter by way of an opening in a side wall of the meter socket adapter.

11. The method of claim 10 , wherein the neutral wire is connected to the neutral terminal through the opening in the side wall of the meter socket adapter.

12. The method of claim 10 , wherein the at least two AC supply lines comprise AC phase 1 and AC phase 2 respectively.

13. The method of claim 8 , wherein the jaw connector is orthogonal to each of the first, second, third, and fourth blade connectors on the first end of the cylindrical body.

14. A meter socket adapter, comprising:
a housing, comprising:
an end wall defining a plurality of connector openings, the end wall including a first surface arranged along an exterior of the housing and a second surface defining an interior volume of the housing, and
a side wall defining a wiring port;

a plurality of connectors extending through the connector openings defined by the end wall of the housing and being configured to engage connectors disposed within a meter socket of an electrical panel, each of the connectors comprising:
a blade connector portion protruding from the first surface, and
a jaw connector portion protruding from the second surface; and

a plurality of terminals positioned within the interior volume defined by the housing and being configured to connect wires from an on-site power generation system routed through the wiring port to the plurality of connectors, wherein one of the plurality of terminals is a neutral terminal configured to be electrically coupled to a neutral wire from the on-site power generation system.

15. The meter socket adapter of claim 14 , further comprising a plurality of clips that keep corresponding ones of the plurality of connectors secured within the connector openings.

16. The meter socket adapter of claim 14 , wherein the plurality of connectors comprises five connectors.

17. The meter socket adapter of claim 14 , wherein the jaw connector portions are configured to be coupled with the connectors of the electrical panel.

18. The meter socket adapter of claim 14 , wherein the connectors of the electrical panel are jaw connectors.

19. The meter socket adapter of claim 14 , wherein the end wall of the cylindrical housing defines two openings for accommodating a connector configured to engage a neutral jaw connector in the meter socket, wherein moving the connector between the two openings allows the meter socket adapter to be installed in the meter socket in two different orientations.

20. The meter socket adapter of claim 14 , wherein the end wall has a circular geometry.

Assignees

• Solarcity Corp

Inventors

• Bautista Garret
• McHugh Cormac

Classifications

• G01R1/0416 Primary

  Connectors, terminals (G01R1/0425 and G01R1/0433 take precedence; with measurement function for battery poles G01R31/364) · CPC title

• H01R31/06

  Intermediate parts for linking two coupling parts, e.g. adapter (with a holder adapted for supporting apparatus to which its counterpart is attached H01R33/94) · CPC title

• H01R33/94

  Holders formed as intermediate parts for linking a counter-part to a coupling part · CPC title

• H01R27/02 Primary

  for simultaneous co-operation with two or more {dissimilar} counterparts · CPC title