IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0283986
(2005-11-21)
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등록번호 |
US-7468566
(2008-12-23)
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발명자
/ 주소 |
- Serrano,Mark Anthony
- Shamieh,Faroog
- Krchak,Kenneth C.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
13 인용 특허 :
3 |
초록
▼
An Automatic Transfer Switch (ATS) having a switch configured to connect one of two sources to a load, a mechanical drive, an actuator, and a solid state control relay is disclosed. The mechanical drive is configured to drive the switch between a first position and a second position, the first posit
An Automatic Transfer Switch (ATS) having a switch configured to connect one of two sources to a load, a mechanical drive, an actuator, and a solid state control relay is disclosed. The mechanical drive is configured to drive the switch between a first position and a second position, the first position connecting the switch to the first source, and the second position connecting the switch to the second source. The actuator is in mechanical communication with the mechanical drive to cause the mechanical drive to move on command. The solid state control relay is responsive to an external signal and productive of a control signal, wherein the actuator is responsive to the control signal to cause the mechanical drive to move.
대표청구항
▼
What is claimed is: 1. An Automatic Transfer Switch (ATS), comprising: a switch configured to connect one of two sources to a load; a mechanical drive configured to drive the switch between a first position connecting the switch to the first source, second position connecting the switch to the seco
What is claimed is: 1. An Automatic Transfer Switch (ATS), comprising: a switch configured to connect one of two sources to a load; a mechanical drive configured to drive the switch between a first position connecting the switch to the first source, second position connecting the switch to the second source, and a third position in which the switch is isolated from the first and second sources; at least one actuator in mechanical communication with the mechanical drive to cause the mechanical drive to move on command; and first, second, third and fourth solid state control relays, each of which is responsive to respective first, second, third and fourth external signals and productive of respective first, second, third and fourth control signals, wherein the at least one actuator is responsive to the respective first, second, third and fourth control signals of the respective first, second, third and fourth solid state control relays to cause the mechanical drive to drive the switch from the first position to the third position, from the third position to the second position, from the second position to the third position and from the third position to the first position, respectively. 2. The ATS of claim 1, wherein: the at least one actuator comprises a DC solenoid; the mechanical drive system comprises a motor operated mechanism; and at least one of the first, second, third and fourth solid state control relays comprises a triac. 3. The ATS of claim 1, wherein: at least one of the first, second, third and fourth solid state control relays is configured to receive AC voltage from either of the first and the second source, and is configured to provide a DC voltage to one of the at least one actuator in response to the external signal. 4. The ATS of claim 1, wherein: the movement of the mechanical drive between the first and second positions comprises a time delay, thereby allowing voltage transients to subside prior to switching from one source to another. 5. The ATS of claim 1, further comprising: an electrical isolation circuit disposed between the two sources and at least one of the first, second, third and fourth solid state control relays, thereby allowing the at least one solid state control relay to receive input AC voltage regardless of which source is active. 6. The ATS of claim 1, wherein: at least one of the first, second, third and fourth solid state control relays comprises AC input terminals and DC output terminals, and is configured to have input/output characteristics according to the following: an input voltage level equal to or greater than 120 Vac and equal to or less than 600 Vac, an output voltage level equal to or greater than 120 Vdc and equal to or less than 600 Vdc, wherein the ratio of output voltage level to input voltage level is 1:1 . 7. The ATS of claim 1, wherein: at least one of the first, second, third and fourth solid state control relays comprises AC input terminals and DC output terminals, and is configured to have voltage withstand characteristics according to the following: an absence of dielectric breakdown in response to a repetitive peak transient voltage across the AC input terminals equal to or less than 1200 Vac peak; and an absence of dielectric breakdown in response to a repetitive peak transient voltage across a DC output terminal and an AC input terminal equal to or less than 2400 Vdc peak. 8. The ATS of claim 1, wherein: at least one of the first, second, third and fourth solid state control relays comprises AC input terminals and DC output terminals, and is configured to provide at the DC output terminals a pulsed DC output current equal to or less than 75 Amps. 9. The ATS of claim 8, wherein: at least one of the first, second, third and fourth solid state control relays is configured to develop at the DC output terminals a voltage drop of equal to or less than 1.7 Vdc at the pulsed DC output current of 75 Amps. 10. An Automatic Transfer Switch (ATS), comprising: a switch configured to connect one of two sources to a load; a mechanical drive system configured to drive the switch between a first position configured to connect the load to the first source, a second position configured to connect the load to the second source, and a third position in which the load is isolated from the first and second sources; and first, second, third and fourth solid state control relays, each of which is responsive to respective first, second, third and fourth command signals and productive of respective first, second, third and fourth control signals, wherein the mechanical drive system is responsive to the respective first, second, third and fourth control signals of the respective first, second, third and fourth solid state control relays to drive the switch from the first position to the third position, from the third position to the second position, from the second position to the third position, and from the third position to the first position, respectively. 11. The ATS of claim 10, wherein: at least one of the first, second, third and fourth solid state control relays comprises AC input terminals and DC output terminals, and is configured to have an input/output characteristics according to the following: an input voltage level equal to or greater than 120 Vac and equal to or less than 600 Vac, an output voltage level equal to or greater than 120 Vdc and equal to or less than 600 Vdc, wherein the ratio of output voltage level to input voltage level is 1:1. 12. The ATS of claim 1, wherein: at least one of the first, second, third and fourth solid state control relays comprises input terminals, output terminals, and control terminals, and is responsive to a relatively high AC voltage input at the input terminals, and is productive of a relatively high DC voltage output at the output terminals in response to an external command signal at the control terminals. 13. The ATS of claim 5, wherein: at least one of the first, second, third and fourth solid state control relays comprises input terminals, output terminals, and control terminals, and is responsive to a relatively high AC voltage input at the input terminals, and is productive of a relatively high DC voltage output at the output terminals in response to an external command signal at the control terminals. 14. The ATS of claim 1, further comprising: an electrical isolation circuit disposed in electrical communication between each of the two sources and each of the first, the second, the third and the fourth solid state control relay, thereby allowing the first, the second, the third and the fourth solid state control relay to receive input AC voltage via a common electrical isolation circuit regardless of which source is active. 15. An Automatic Transfer Switch (ATS), comprising: a switch configured to connect one of two sources to a load; a mechanical drive configured to drive the switch between a first position connecting the switch to the first source, a second position connecting the switch to the second source, and a third position in which the switch is isolated from the first and second sources; at least one actuator in mechanical communication with the mechanical drive to cause the mechanical drive to move on command; and a plurality of solid state control relays, each of which is responsive to a corresponding number of respective external signals and productive of a corresponding number of respective control signals, wherein the at least one actuator is responsive to each of the corresponding number of respective control signals of each of the plurality of solid state control relays to cause the mechanical drive to drive the switch from the first position to the third position, from the third position to the second position, from the second position to the third position, and from the third position to the first position, respectively.
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