IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0276406
(2011-10-19)
|
등록번호 |
US-8716885
(2014-05-06)
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발명자
/ 주소 |
- Pfitzer, Hans-Erik
- Oudrhiri, Adil
|
출원인 / 주소 |
- Thomas & Betts International, Inc.
|
대리인 / 주소 |
Snyder, Clark, Lesch & Chung, LLP
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
31 |
초록
▼
A switching assembly includes a first terminal and a second terminal, a first switch connected to the first terminal, and a second switch connected to the second terminal. The switching assembly further includes a rectifier bridge connected between the first switch and the second switch, and a third
A switching assembly includes a first terminal and a second terminal, a first switch connected to the first terminal, and a second switch connected to the second terminal. The switching assembly further includes a rectifier bridge connected between the first switch and the second switch, and a third switch connected between the first terminal and the second terminal. The switching assembly also includes a control unit that selectively opens and closes the first switch, the second switch and the third switch, and selectively turns on and off the rectifier bridge.
대표청구항
▼
1. A switching assembly, comprising: a first terminal and a second terminal, wherein the first terminal is connected to a first power source and the second terminal is connected to a second power source;a first switch connected to the first terminal;a second switch connected to the second terminal;a
1. A switching assembly, comprising: a first terminal and a second terminal, wherein the first terminal is connected to a first power source and the second terminal is connected to a second power source;a first switch connected to the first terminal;a second switch connected to the second terminal;a rectifier bridge connected between the first switch and the second switch, wherein the rectifier bridge comprises a first silicon controlled rectifier (SCR) connected in parallel with a second SCR;a third switch connected between the first terminal and the second terminal; anda control unit configured to: selectively open and close the first switch, the second switch and the third switch, andselectively turn on and off the rectifier bridge;wherein the control unit is further configured to: cause the first switch to close, the second switch to close, the third switch to open, and the first and second SCRs to turn on based on power being delivered into the first terminal from the first power source,cause the third switch to open and the first and second SCRs to turn off based on a failure of delivery of power into the first terminal from the first power source, andcause the third switch to close, the first switch to open, and the second switch to open based on power being delivered into the first terminal from the first power source and based on a failure of delivery of power into the second terminal from the second power source. 2. The switching assembly of claim 1, wherein a cathode of the first SCR is connected to the second switch and an anode of the first SCR is connected to the first switch, and wherein a cathode of the second SCR is connected to the first switch and an anode of the second SCR is connected to the second switch. 3. The switching assembly of claim 1, wherein the first power source comprises a public utility power source. 4. The switching assembly of claim 3, wherein the second power source comprises a distributed energy source. 5. The switching assembly of claim 1, wherein a non-critical load is coupled to the first terminal and a critical load is coupled to the second terminal. 6. The switching assembly of claim 5, wherein, when the first and second switches are closed, the third switch is open, and the first and second SCRs are turned on, power is delivered from the first power source to the non-critical load, power is delivered from the second power source to the critical load, and power is delivered from the second power source through the first switch, the second switch and the first and second SCRs to the non-critical load. 7. The switching assembly of claim 6, wherein, when the third switch is open and the first and second SCRs are turned off, power is delivered from the second power source to the critical load, and no power is delivered from the second power source through the first switch, the second switch, and the first and second SCRs to the non-critical load. 8. The switching assembly of claim 7, wherein, when the first and second switches are opened and the third switch is closed, power is delivered from the first power source to the non-critical load and through the third switch to the critical load. 9. The switching assembly of claim 1, wherein the control unit is further configured to: turn on the first and second SCRs when a voltage at the input terminal incurs a zero crossing. 10. A switching assembly, comprising: a switching unit connected to a first load and a first power supply on a first side of the switching unit, and to a second load and a second power supply on a second side of the switching unit, wherein the switching unit is separate and distinct from the first load, the first power supply, the second load and the second power supply;a control unit configured to: cause the switching unit to close a connection between the first power supply and the second load, and to close a connection between the second power supply and the first load, when power is being delivered from the first power supply to the first side of the switching unit and when power is being delivered from the second power supply,cause the switching unit to open the connection between the first power supply and the second load, when the first power supply fails to deliver power to the first side of the switching unit, such that power is being delivered only from the second power supply to the second load, andcause the switching unit to close the connection between the first power supply and the second load when the second power supply stops delivering power. 11. The switching assembly of claim 10, wherein the switching unit comprises: a silicon controlled rectifier (SCR) bridge connected in series between a first switch and a second switch; anda third switch connected in parallel across the series connected SCR bridge, the first switch, and the second switch. 12. The switching assembly of claim 11, wherein, when causing the switching unit to close a connection between the first power supply and the second load, and to close a connection between the second power supply and the first load the control unit is configured to: cause the first switch to close,cause the second switch to close,cause the third switch to open, andcause SCRs of the SCR bridge to turn on. 13. The switching assembly of claim 11, wherein, when causing the switching unit to open the connection between the first power supply and the second load, the control unit is configured to: cause the third switch to open, andcause the SCRs of the SCR bridge to turn off. 14. The switching assembly of claim 11, wherein, when causing the switching unit to close the connection between the first power supply and the second load when the second power supply stops delivering power, the control unit is configured to: cause the third switch to close,cause the first switch to open, andcause the second switch to open. 15. A device, comprising: a switching unit coupled between a first power source and a second power source,wherein the switching unit is coupled to the first power source on a first side of the switching unit and is coupled to the second power source on a second side of the switching unit,wherein the switching unit is configured to selectively open or close a connection between the first power source and the second power source,and wherein the switching unit is further configured to: measure the existence of reverse power flowing from the switching unit at the first side of the switching unit towards the first power source, andperform one of: instruct the second power source to increase or decrease its output power such that the reverse power is prevented, while maximizing the output power of the second power source,open the connection between the first power source and the second power source if reverse power is measured as flowing from the switching unit at the first side of the switching unit towards the first power source, oropen the connection between the first power source and the second power source if reverse power, exceeding a power threshold for greater than a specific time interval, is measured as flowing from the switching unit at the first side of the switch unit towards the first power source. 16. The device of claim 15, wherein the first power source comprises a utility power source and the second power source comprises a distributed energy power source. 17. The device of claim 16, wherein a critical load is coupled to the second side of the switching unit and wherein a non-critical load is coupled to the first side of the switching unit. 18. A switching assembly, comprising: a first terminal and a second terminal;a first switch connected via a direct connection to the first terminal;a second switch connected via a direct connection to the second terminal;a rectifier bridge connected between the first switch and the second switch, wherein the rectifier bridge comprises a first silicon controlled rectifier (SCR) connected in parallel with a second SCR;a third switch connected via a direct connection between the first terminal and the second terminal; anda control unit configured to: selectively open and close the first switch, the second switch and the third switch, andselectively turn on and off the first SCR and the second SCR. 19. The switching assembly of claim 18, wherein the first terminal is connected to a first power source and the second terminal is connected to a second power source. 20. The switching assembly of claim 19, wherein the control unit is further configured to: cause the first switch to close, the second switch to close, the third switch to open, and the first and second SCRs to turn on based on power being delivered into the first terminal from the first power source,cause the third switch to open and the first and second SCRs to turn off based on a failure of delivery of power into the first terminal from the first power source, andcause the third switch to close, the first switch to open, and the second switch to open based on power being delivered into the first terminal from the first power source and based on a failure of delivery of power into the second terminal from the second power source.
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