序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 Electric high-voltage circuit breaker US251107 1988-09-29 US4920242A 1990-04-24 Helmut Beier; Joaquin-Conrado Bohrdt; Klaus Schuler
In an electric high-voltage circuit breaker with a hydraulic drive, the piston rod, going through a seal, is brought out of the hydraulic cylinder in order to actuate the movable contact via a reversing gear and a switching rod. The piston rod is arranged in a protective tube and provided with a guiding ring which guides the piston rod in the protective tube. The piston rod is coupled to a fork head which engages the reversing gear. The hydraulic cylinder is located between two housings for drive parts, the interior spaces of which are heated and ventilated or exhausted. To prevent the formation of condensate water in the interior of the protective tube, there are provided in the hydraulic cylinder passages which connect the interior of the lower housing and the interior of the upper housing, respectively, to the interior of the protective tube. Thereby, the heated air is conducted from the lower housing via the interior of the protective tube into the interior of the upper housing. The electric high-voltage circuit breaker may be of the type using SF.sub.6 pressurized gas in an open air installation.
122 Arrangement for providing various circuit protection device configurations US721614 1985-04-10 US4752859A 1988-06-21 Leonard V. Chabala; Robert H. Harner; Thomas J. Tobin
An arrangement for efficiently assembling and providing a plurality of circuit protection device configurations by use of major components that are common to the configurations and that are adapted for interconnection and functioning with each other; some of the major components providing different or multiple functions in the various configurations. The various configurations satisfy the application requirements and customer needs with regard to voltage rating, efficient space usage, station layouts, and the provision of disconnect mechanisms. The configurations include various orientations of interrupting units and the provision of various types of disconnect mechanisms. The major components include an operator, an interrupting unit, an insulating support column, and a base drive. The operator provides a first drive output and a second drive output. The insulating support column is capable of being rotated to provide a rotary drive output for disconnect mechanisms. The insulating support column also internally carries an operating member. The operating member is driven to operate the interrupting unit. The base drive is connected to receive the first drive output of the operator and in turn to provide a driving output to the operating member. The second drive output is connected through appropriate linkage to rotate the insulating support column.
123 Operator for interrupters and disconnect mechanisms US726862 1985-04-25 US4677262A 1987-06-30 Joel A. Ramos; Edward J. Rogers; Thomas J. Tobin
An operator is provided that includes a common drive for charging an operating mechanism and for driving a functional accessory device in predetermined coordinated relationship. The common drive in a specific embodiment is provided as a drive shaft at the output of a drive train. The operating mechanism is charged as the drive shaft is rotated from a first to a second predetermined position. The functional accessory device is also driven via the drive shaft; the functional accessory device being operated from a first predetermined operational state to a second predetermined operational state in response to the rotation of the drive shaft between the predetermined positions. When desired, the functional accessory device is operated from the second predetermined operational state to the first predetermined operational state by subsequent rotation of the drive shaft to the first predetermined position. The operating mechanism is controlled thereafter to close the contacts of one or more interrupting units. The operating mechanism is capable of immediately opening the contacts of the one or more interrupting units after closing. After opening of the contacts of the interrupting unit and when desired, the drive shaft is rotated from the first to the second predetermined position to again charge the operating mechanism and drive the functional accessory device to the second predetermined operational state. In one embodiment of the operator, a charging cam is carried by the drive shaft for charging the operating mechanism. The charging cam, in a specific embodiment, includes a predetermined cam surface that cooperates with the operating mechanism to inhibit movement of the drive shaft and thus inhibits operation of the functional accessory device when the motor of the drive train is deenergized. In one arrangement, the functional accessory device is one or more disconnects with a disconnect being connected in series circuit with each interrupting unit.
124 Power switch assembly having a circuit breaker and a circuit disconnector US560990 1983-12-13 US4541033A 1985-09-10 Toru Saito
A power switch assembly has a horizontal supporting base, a circuit disconnector including a first supporting porcelain insulator vertically disposed on the supporting base, a stationary contactor supported by the free end of the first insulator, and a rod-shaped movable contactor separably engaged by the stationary contactor and pivotally secured to an operating mechanism located within a hollow terminal disposed at the free end of a second supporting porcelain insulator vertically disposed on the supporting base, and a circuit breaker disposed on the hollow terminal to be tilted to be remote from the movable contactor, while two driving rods extend through the second insulator and are connected to the driving source to open and close the circuit disconnector through the operating mechanism and the circuit breaker through a linkage located within the hollow terminal. The power switch assembly may have further a porcelain clad lightning arrester substituted for the first insulator.
125 High-voltage Y-shaped dead tank circuit interrupter US405479 1982-08-05 US4486633A 1984-12-04 Ben J. Calvino
A gas-insulated circuit breaker is described which includes a Y-shaped hollow grounded metal tank formed from three appropriately shaped pipes joined together. A hollow insulating bushing is secured to each upstanding leg. A stationary and a movable contact, separable from each other to establish an arc therebetween, are disposed in one of the upstanding legs, with an insulating gas disposed within both the tank and the insulating bushings. A mechanism is used for directing a blast of insulating gas into the arc established between the separating contact, and includes a piston fixedly disposed in the one leg and a puffer cylinder secured to the movable contact and movable over the piston to compress the gas therebetween. An operating mechanism is associated with the base leg for moving the movable contact, and a drive rod insulatably connects the movable contact and the operating mechanism. The operating mechanism thus moves the movable contact through the insulating drive rod.
126 Gas-blast circuit-breaker US48120 1979-06-13 US4295023A 1981-10-13 Edmond Thuries; Pierre Vernat; Roger Sauvat
A gas-blast circuit-breaker which includes several groups of arc-extinguishing chambers, each group being supported by a support above a base, each support including firstly support pillars fixed at various points of the base and secondly a tubular column which is suitable for conveying the gas of the circuit-breaker and which extend to a single actuator which is integral with the base, these columns including links controlled by the actuator and connected to control rods for opening and closing the arc-extinguishing chambers.
127 Manual operating handle assembly for circuit interrupter devices US923232 1978-07-10 US4210788A 1980-07-01 Norman J. Stranczek
A manually operated handle assembly for operating high voltage circuit interrupter devices which are suitable for circuit opening operations but which are not suitable for circuit closing operations. Interrupter devices for which the handle assembly embodied in the present invention is suitable, therefore, are intended to be used in conjunction with a disconnect switch that is suitable for circuit-closing operations. By removing a lock bar, which unless removed prevents movement of the operating handle, and raising the operating handle to the horizontal position, the operating handle can be pivoted to rotate an operating shaft which causes the interrupter device to trip open. Closing the interrupter device is accomplished by pivoting the operating handle farther and thereby rotating the operating shaft an additional amount. The handle assembly provides an interlock feature which prevents the interrupter device being operated by the handle from being inadvertently closed unless the associated disconnect switch is open. However, the interlock feature does not interfere with operation of the handle assembly to cause the interrupter device to trip open. The interlock feature of the disclosed invention incorporates a key operated locking mechanism which prevents operation of the handle to complete the closing of the interrupter device unless an associated disconnect switch has been opened and locked in the open position. The operating handle is held in a horizontal position except when it is rotated to the "home" position, thereby providing a visual indication when the interrupter device is not in the "home" position.
128 High-voltage circuit breaker equipped with hydraulic drive US35882973 1973-05-09 US3823286A 1974-07-09 THURK G; BEIER H
A high-voltage circuit breaker has contacts switchable between open and closed positions and is equipped with a hydraulic actuator operatively connected to the contacts. The actuator is responsive to fluid pressure for switching the contacts. A first fluid supply supplies fluid under low pressure, and a second fluid supply supplies fluid under high pressure. A hydraulic reservoir at ground potential connects the first fluid supply with the second fluid supply for supplying fluid under pressure to the second fluid supply. A valve at high-potential is connected to the hydraulic actuator and includes valve discs for alternately connecting the first fluid supply and the second fluid supply to the hydraulic actuator. The valve discs are controlled from a location at ground potential with the aid of member made of insulating material and are movable between first and second positions. At least one of the valve discs is exposed to the pressure of the fluid of the second fluid supply which places a tension load on the member and acts in a direction to return the discs to the first position.
129 Switch operating mechanism US3769477D 1972-09-18 US3769477A 1973-10-30 CHABALA L; ROGERS E
Main and auxiliary contact operating rods are sequentially moved to contact open positions by coil tension springs on the sequential tripping of main and auxiliary toggle latches by a mechanism cam on an operating shaft pivoted in one direction. Continued pivoting of the operating shaft in the same direction effects movement of the rods to the contact closed positions. The toggle latches can be tripped sequentially independently of the mechanism cam. An indicator operated in conjunction with the main contact operating rod provides a visible indication of the position of the operating rod and thereby of the contacts.
130 Pressure-operated electrical high voltage circuit breaker US3745280D 1971-12-13 US3745280A 1973-07-10 PRATSCH R; BEIER H; DISKAR K
A receiving vessel for displaced hydraulic fluid is positioned at the cylinder of the drive mechanism of an electrical circuit breaker having a hydraulic drive. The receiving vessel is connected via a valve to the hydraulic system which includes a storage unit and a low pressure vessel. The connection is provided via a single pipeline between the receiving vessel and the hydraulic system. The valve connects the pipeline with either the receiving vessel or the cylinder, depending upon the pressure. The circuit breaker is especially suitable for high voltage, high capacity operation.
131 Means for mounting and electrically interconnecting circuit interrupting devices US44683365 1965-04-09 US3352988A 1967-11-14 WACHTA ZYGMUNT A; MAXIMILIAN PFLANZ HERBERT
132 Fluid-blast circuit interrupter having serially-related pressure-generating and interrupting arcs US23557362 1962-11-05 US3259724A 1966-07-05 ASPEY WAYNE S; CO MELLON NATIONAL BANK TRUST
133 Air blast circuit breaker US35029564 1964-03-09 US3258570A 1966-06-28 GUSTAV SINDAHL KARL; SVEN AKERVALL
134 Actuating system for simultaneously engaging or disengaging the contacts of multiple circuit breakers US28147863 1963-05-20 US3247338A 1966-04-19 LOUIS GRATZMULLER JEAN
135 Electric circuit breaker US23920662 1962-11-21 US3152283A 1964-10-06 SHORES RONALD B
136 peroun US3124669D US3124669A 1964-03-10
137 Circuit interrupter US69330657 1957-10-30 US3060294A 1962-10-23 LEEDS WINTHROP M
138 Circuit interrupters US63540057 1957-01-22 US2981814A 1961-04-25 FRIEDRICH ROBERT E
139 Circuit interrupters US76202758 1958-09-19 US2979591A 1961-04-11 FRIEDRICH ROBERT E
140 Electric high tension circuit breakers US45035554 1954-08-17 US2774851A 1956-12-18 HAAKON FORWALD
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