Granted Patent B2

US 8,786,386 · App. 13/711,046 · Granted Jul 22, 2014

Abstract

Claims (42)

1. A meter disconnect relay, comprising:

a base;

a shuttle comprising:

one or more tabs configured to fit within one or more grooves of the base, and wherein the shuttle is configured to move linearly relative to the base; and

one or more windows;

a solenoid situated within the base, wherein the solenoid comprises:

a stationary portion comprising a solenoid body, a spring, and a magnet;

a plunger coupled to the shuttle, wherein the plunger is configured move linearly relative to the base and the solenoid body thereby causing the shuttle to move linearly relative to the base, wherein the magnet is configured to latch the plunger when the plunger is forced to move within the solenoid body, and wherein the magnet is positioned adjacent to a first end of the plunger when the plunger is latched; and

one or more disconnect switches coupled to the one or more windows of the shuttle, wherein the one or more disconnect switches are opened or closed by movement of the shuttle.

2. The meter disconnect relay of claim 1 , wherein each disconnect switch comprises:

a bridging section comprising one or more contacts; and

a conductive source portion having one or more source contacts, wherein at least one of the one or more contacts of the bridging portion are configured to couple to the one or more source contacts by movement of the shuttle.

3. The meter disconnect relay of claim 2 , wherein at least a portion of the one or more source contacts or the one or more contacts of the bridging portion are at least partially comprised of silver-tin materials.

4. The meter disconnect relay of claim 2 , wherein at least a portion of the one or more source contacts or the one or more contacts of the bridging portion are at least partially comprised of silver refractory materials.

5. The meter disconnect relay of claim 4 , wherein of the silver refractory materials comprises one or more of silver tungsten, silver tungsten carbide, silver molybdenum, silver titanium, or titanium carbide.

6. The meter disconnect relay of claim 1 , further comprising a utility revenue meter, wherein the meter disconnect relay is integrated into the utility revenue meter.

7. The meter disconnect relay of claim 6 , wherein the utility revenue meter is an electric utility revenue meter.

8. The meter disconnect relay of claim 1 , wherein the plunger latching is configured to provide overcurrent protection for devices connected to a conductive load portion of the meter disconnect relay.

9. The meter disconnect relay of claim 1 , wherein the plunger comprises a ferromagnetic material.

10. The meter disconnect relay of claim 1 , wherein the spring is disposed between the magnet and the first end of the plunger.

11. The meter disconnect relay of claim 1 , wherein the spring is configured to provide additional force to the plunger when moving out of the solenoid body.

12. The meter disconnect relay of claim 1 , comprising one or more bridging sections having the one or more disconnect switches, wherein each bridging section comprises a first disconnect switch disposed on a first face of a first window of the shuttle and a second disconnect switch disposed on a second face of the first window, wherein the first face is opposite to the second face.

13. A system comprised of:

a meter; and

a meter disconnect relay integrated with the meter, wherein the meter disconnect relay comprises:

a base;

a shuttle comprising:

one or more tabs configured to fit within one or more grooves of the base, and wherein the shuttle is configured to move linearly relative to the base; and

one or more windows;

a solenoid situated within the base, wherein the solenoid comprises:

a stationary portion comprising a solenoid body, a plunger, a spring, and a magnet; and

a plunger coupled to the shuttle, wherein the plunger is configured move linearly relative to the base and the solenoid body thereby causing the shuttle to move linearly relative to the base, wherein the magnet is configured to latch the plunger when the plunger is forced to move within the solenoid body, and wherein the magnet is positioned adjacent to a first end of the plunger when the plunger is latched; and

one or more disconnect switches coupled to the one or more windows of the shuttle, wherein the one or more disconnect switches are opened or closed by movement of the shuttle.

14. The system of claim 13 further comprising a network, wherein the network is connected with the meter and signals received by the meter over the network is configured to control the meter disconnect relay.

15. The system of claim 13 , wherein the meter comprises a meter base and at least a portion of the base comprises a portion of the meter base.

16. The system of claim 13 , wherein the meter is an electric utility revenue meter.

17. The system of claim 13 , wherein the plunger latching is configured to provide overcurrent protection for devices connected to a conductive load portion of the meter disconnect relay.

18. The system of claim 13 , wherein each disconnect switch comprises

a bridging section comprising one or more contacts; and

a conductive source portion having one or more source contacts, wherein at least one of the one or more contacts of the bridging portion are configured to couple to the one or more source contacts by movement of the shuttle.

19. The system of claim 18 , wherein the bridging section is configured to couple to a first side of a first window of the one or more windows, and wherein the conductive source portion is configured to couple to a second side of the second window.

20. The system of claim 13 , wherein the plunger comprises a ferromagnetic material.

Assignments (9)