Patent US3891893A successfully refreshed from Google Patents.
US3891893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-voltage power switch
Assignee: Rockwell Automation Switzerland GmbH
•
Filing: 1974-05-24
•
Granted: 1975-06-24
•
Expires: 1994-05-24
Abstract
Abstract A high-voltage power switch embodying at least two power switch locations having each terminal or pole connected in series and composed of at least one oil-poor switch and at least one gasblast switch with self-flushing or extinguishing action. The arc extinguishing compartment of the oil-poor switch is sealed with a pressure stroke transducer and the part of the pressure stroke transducer which carries out the stroke movement is operatively connected with a pump device of the gas-blast switch in order to be able to use the pressure energy dependent upon current and present in the arc extinguishing compartment of the oil-poor switch during the cut-off operation for the actuation of the gasblast switch.
Inventors
- 👤 Richard Thaler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:18
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/04; H01H33/14; H01H33/143; H01H33/16; H01H33/167; H01H33/70; H01H33/72; H01H33/75; H01H2033/146; H01H33/88; H01H33/90; H01H33/901; H01H33/903
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
221 words
A high-voltage power switch arrangement comprising at least two power switching locations having each terminal connected in series, said at least two power switching locations comprising at least one oil-poor switch and at least one gas-blast switCh having means providing automatic arc extinguishing, the oil-power switch possessing a more rapid natural dielectric strengthening and strenghtens at a prescribed lower voltage value than the gas-blast switch, a switch drive actuating the power switching locations, and means for the potential control and damping with the aid of capacitors, inductances and resistors, wherein when using capacitors and resistors, the capacitors are connected in parallel with the gas-blast switches and the resistors with the oil-poor switches and when using inductances and resistors the resistors are connected in parallel with the gas-blast switches and the inductances with the oil-poor switches, the improvement comprising said oil-poor switch having an arc extinguishing compartment sealed by a pressure-stroke transducer, said pressure-stroke transducer including a component which carries out the stroke movement, a pump device provided for the gas-blast switch, said component of the pressure-stroke transducer being operatively connected with said pump device of the gas-blast switch in order to be able to use, during the cut-off operation, the current-dependent pressure energy which prevails in the arc extinguishing compartment of the oil-poor switch for the actuation of the gas-blast switch.
Claim 2
Dependent Claim
221 words
A high-voltage power switch arrangement comprising at least two power switching locations having each terminal connected in series, said at least two power switching locations comprising at least one oil-poor switch and at least one gas-blast switCh having means providing automatic arc extinguishing, the oil-power switch possessing a more rapid natural dielectric strengthening and strenghtens at a prescribed lower voltage value than the gas-blast switch, a switch drive actuating the power switching locations, and means for the potential control and damping with the aid of capacitors, inductances and resistors, wherein when using capacitors and resistors, the capacitors are connected in parallel with the gas-blast switches and the resistors with the oil-poor switches and when using inductances and resistors the resistors are connected in parallel with the gas-blast switches and the inductances with the oil-poor switches, the improvement comprising said oil-poor switch having an arc extinguishing compartment sealed by a pressure-stroke transducer, said pressure-stroke transducer including a component which carries out the stroke movement, a pump device provided for the gas-blast switch, said component of the pressure-stroke transducer being operatively connected with said pump device of the gas-blast switch in order to be able to use, during the cut-off operation, the current-dependent pressure energy which prevails in the arc extinguishing compartment of the oil-poor switch for the actuation of the gas-blast switch.
Claim 3
Dependent Claim
41 words
The high-voltage power switch arrangement as defined in claim 1, wherein the pressure-stroke transducer comprises a cylinder which is operatively connected with the arc extinguishing compartment of the oil-poor switch and a piston member which is relatively movable within said cylinder.
Claim 4
Dependent Claim
43 words
The high-voltage power switch arrangement as defined in claim 2, wherein the cylinder is provided with a pressure vent opening which is freed by said piston member when said piston member assumes a terminal position following pressure impingement of the arc extinguishing compartment.
Claim 5
Dependent Claim
76 words
The high-voltage power switch arrangement as defined in claim 3, wherein said piston member has a front face and a rear face, valve means arranged between the front face and rear face of the piston member, said valve means closing in the presence of high pressures in the arc extinguishing compartment and during the closing movement of the switch drive and the therewith associated return movement of the piston member into a starting position remaining open.
Claim 6
Dependent Claim
112 words
A high-voltage power switch arrangement composed of at least two power switching locations comprising at least one oil-poor switch and at least one gas-blast switch, said oil-poor switch having an arc extinguishing compartment, a pressure-stroke transducer cooperating with said arc extinguishing compartment, said pressure-stroke transducer including a component which carries out the stroke movement, a pump device provided for the gas-blast switch, said component of the pressure-stroke transducer being operatively connected with said pump device of the gas-blast switch in order to be able to use, during the cutoff operation, the current-dependent pressure energy which prevails in the arc extinguishing compartment of the oil-poor switch for the actuation of the gas-blast switch.
Claim 7
Dependent Claim
112 words
A high-voltage power switch arrangement composed of at least two power switching locations comprising at least one oil-poor switch and at least one gas-blast switch, said oil-poor switch having an arc extinguishing compartment, a pressure-stroke transducer cooperating with said arc extinguishing compartment, said pressure-stroke transducer including a component which carries out the stroke movement, a pump device provided for the gas-blast switch, said component of the pressure-stroke transducer being operatively connected with said pump device of the gas-blast switch in order to be able to use, during the cutoff operation, the current-dependent pressure energy which prevails in the arc extinguishing compartment of the oil-poor switch for the actuation of the gas-blast switch.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |