161 |
Switching apparatus |
US11988877 |
2006-06-22 |
US20090266693A1 |
2009-10-29 |
Bernard Bizard; ZhenZhong Liu; Pravin Sawant |
A switching apparatus has a frame with a circular notch in its operating surface; a operating handle disposed in the notch, said handle can change from a lower position corresponding to automatic mode to a upper position corresponding to manual mode, and the handle are rotatable in said circular notch in both positions; and gearing mechanism disposed in the frame, said gearing mechanism comprise a main gear, a clutch gear coupled to a motor, and a switch gear coupled to the main gear. The main gear, the clutch gear and the handle consist of a clutch device, such that in automatic mode the main gear engages the clutch gear and in manual mode the main gear disengaged from the clutch gear. Because the motor is disengaged from the main gear in the manual mode, the rotation of the operating handle will not interact with motor, so avoids possible confliction and resultant damage. |
162 |
SWITCHING DEVICE FOR AN ELECTRICAL SWITCHGEAR ASSEMBLY FOR ENERGY DISTRIBUTION |
US12302216 |
2007-04-26 |
US20090152079A1 |
2009-06-18 |
Peters Hauke; Daniel Kuhl |
A switching device for an electrical switchgear assembly for power distribution includes a grounding function unit including a first moving control element selectably moveable to a first manual operation position and an isolation function unit including a second moving control element selectably to a second manual operation position. The grounding function unit is selectable to a manual operation state by moving the first moving control element to the first manual operation position, and the isolation function unit function unit is selectable to a manual operation state by moving the second moving control element to the second manual operation position. When the manual operation state is selected for one of the grounding and isolation function units, selection of the other of the grounding and isolation functional units to the manual operation state is blocked by a respective one of the first and second moving control elements. |
163 |
Intelligent electric switching device for securing electricity distribution means |
US10896688 |
2004-07-22 |
US20050225919A1 |
2005-10-13 |
Michel Combier |
The present invention concerns an intelligent electric switching device designed to secure electric energy distribution systems; the device is characterized in that it includes, in a single physical unit: an electric switch through which an electric power network passes; a measurement means assembly including one or more measurement means; a network communication means, connected to a communication network; a memory storage means permitting storing all the measurements conducted on the electric switching device an the data coming from the communication network means; a decision means analyzing the stored and controlling the electric switch; decision means being connected to electric switch, to measurement means, to communication network means and to memory-storage means. |
164 |
Electrical circuit interrupting device |
US10759086 |
2004-01-20 |
US06852939B2 |
2005-02-08 |
David A. Rhein; Bradley W. Davis; Michael R. Qualls |
A recloser for use with an electrical power distribution system including a circuit interrupter including a primary contact and a movable contact movable relative to the primary contact between a closed position allowing current to pass through the circuit interrupter and an open position separating the contacts and preventing current from passing through the circuit interrupter. An actuator is coupled to the circuit interrupter. The actuator includes a movable shaft coupled to the movable contact of the circuit interrupter for substantially simultaneous movement therewith and without insulation being disposed between the movable contact and the movable shaft. An electronic control is electrically connected to the actuator. The electronic control communicates with the actuator upon occurrence of a fault current to trigger the shaft to move the movable contact of the circuit interrupter from the closed position to the open position and to trigger the shaft to reclose the movable contact from the open position to the closed position upon termination of the fault current. |
165 |
Electrical circuit interrupting device |
US10759087 |
2004-01-20 |
US06794596B2 |
2004-09-21 |
David A. Rhein; Bradley W. Davis; Michael R. Qualls |
A circuit interrupting device for use with an electrical power distribution system including a circuit interrupter having a closed position allowing current to pass through the circuit interrupter and an open position preventing current from passing through the circuit interrupter. An actuator is electrically and mechanically coupled to the circuit interrupter. The actuator moves the circuit interrupter between the closed and open positions upon occurrence of a fault current. First and second terminals are electrically connected to the circuit interrupter and are adapted for electrical connection to the power distribution system, defining a current path between the first terminal, the circuit interrupter, and the second terminal, allowing current of the power distribution system to pass through the current path so that the potential of the circuit interrupter is the same as the potential of the power distribution system. The circuit interrupter and the actuator are not mounted in a grounded container, and the first terminal, the circuit interrupter, the actuator, and the second terminal are ungrounded. |
166 |
Electrical circuit interrupting device |
US10117338 |
2002-04-08 |
US06753493B2 |
2004-06-22 |
David A. Rhein; Bradley W. Davis; Michael R. Qualls |
A circuit interrupting device for use with an electrical power distribution system, comprising a circuit interrupter that includes a primary contact and a movable contact movable relative to the primary contact between a closed position allowing current to pass through the circuit interrupter and an open position separating the contacts and preventing the current from passing through the circuit interrupter. An actuator is coupled to the circuit interrupter. The actuator includes a shaft coupled to the movable contact of the circuit interrupter for substantially simultaneous movement without insulation being disposed between the shaft and the movable contact. The shaft moves the movable contact from the closed position to the open position upon occurrence of a fault current. An electronic control is electrically connected to the actuator and communicating with the actuator to trigger the shaft to move the movable contact of the circuit interrupter from the closed position to the open position. |
167 |
Operating mechanism with improved input drive arrangement for switches and circuit interrupters |
US09955322 |
2001-09-19 |
US06646216B2 |
2003-11-11 |
Thomas O. Fanta; Robert H. Ward, Jr. |
A compact operating mechanism for switches and circuit interrupters provides improved input drive arrangement and more particularly to a quick-make quick-break operating mechanism for electrical circuit interrupters, i.e. load-interrupter switches and fault interrupters, the drive input arrangement being capable of either power or manual operation without the necessity of any coupling/decoupling or mode selection. |
168 |
Electrical switchgear with synchronous control system and actuator |
US10301678 |
2002-11-22 |
US20030071522A1 |
2003-04-17 |
John
Francis
Baranowski; Debra
Jennifer
Jochum; Charles
John
Knotek; Aleksander
Mankowski; Michael
Peter
Dunk |
A closed loop feedback system controls electrical switchgear that moves at least one contact relative to another contact to switch power on and off in an AC electrical circuit. The control system includes a position feedback device that is operatively coupled to at least one of the two contacts to produce contact position information. A processor receives and analyzes the contact position information to control contact motion to provide AC waveform synchronized switching. The electrical switchgear may be a capacitor switch that includes a bi-stable over-toggle latching device. The latching device maintains the contacts in one of an open stable position in which electrical current does not flow through the contacts or a closed stable position in which electrical current flows through the contacts. |
169 |
Electrical switchgear with synchronous control system and actuator |
US09343094 |
1999-06-30 |
US06538347B1 |
2003-03-25 |
John Francis Baranowski; Debra Jennifer Jochum; Charles John Knotek; Aleksander Mankowski; Michael Peter Dunk |
A closed loop feedback system controls electrical switchgear that moves at least one contact relative to another contact to switch power on and off in an AC electrical circuit. The control system includes a position feedback device that is operatively coupled to at least one of the two contacts to produce contact position information. A processor receives and analyzes the contact position information to control contact motion to provide AC waveform synchronized switching. The electrical switchgear may be a capacitor switch that includes a bi-stable over-toggle latching device. The latching device maintains the contacts in one of an open stable position in which electrical current does not flow through the contacts or a closed stable position in which electrical current flows through the contacts. |
170 |
Stored energy circuit breaker operator |
US277932 |
1999-03-29 |
US6130392A |
2000-10-10 |
James H. Blessitt; Parker A. Bollinger, Jr.; Milton E. Ramey; Paul D. Reagan; W. Dale Robbins; Jill Stegall |
A stored energy apparatus for association with an operating handle of a circuit breaker contains springs that store energy when charged and that release energy when discharged. Energy is stored when a movement translation assembly is moved in a charging direction by an operator gear, and stored energy is released when a release apparatus releases the operator gear, causing the movement translation assembly to move in a discharging direction. The circuit breaker operating handle is moved to ON position by the charging movement of the movement translation assembly, and as stored energy is released, the discharging movement of the movement translation assembly moves the operating handle to OFF position. The operator gear is operated via an operator handle, operator shaft, and pinion gear assembly. The pinion gear assembly has a carrier pivotally associated with the operator shaft and a pinion gear that rotates the operator gear. The operator gear may also be turned by an electric motor and series of gears to accomplish electric operation of the circuit breaker. |
171 |
Power operator for switchgear with manual features |
US996085 |
1997-12-22 |
US5895987A |
1999-04-20 |
Steve Chung-Bun Lo; Todd W. Klippel; Douglas B. Hill |
A power operator for switchgear and the like is provided that is capable of either power or manual operation without the necessity of any decoupling or mode selection. The power operator is compact and easily affixed over a manual operating shaft of switchgear. The manual drive capabilities are always coupled for operation without any backdriving of the power source. The power operator includes a drive output affixed to the switchgear operating shaft, a manual operating shaft, and an arrangement for selectively coupling a power-driven input to the switchgear operating shaft. In a specific arrangement, the control arrangement of the power operator senses the position of the drive output and also senses the current drawn by the drive source. When controlling switchgear having a stored energy mechanism, operating positions are detected by sensing the tripping of the stored energy mechanism via the sensed current through the drive source. |
172 |
Lockable assembly for engaging and disengaging a motor operator with an
overhead distribution gang switch |
US758450 |
1996-11-29 |
US5769208A |
1998-06-23 |
Charles E. Griffith |
An apparatus used in combination with a motor operator and an overhead distribution gang switch. The motor operator is activatable for automatically opening and closing the gang switch. The locking assembly includes a coupler assembly that couples the motor operator with the gang switch. A clutch plate and operating handle connecting device is hinged to the coupler assembly for selectively connecting and disconnecting the motor operator with the gang switch, and for manually opening and closing the gang switch when the motor operator and the gang switch are disconnected. An assembly is provided for locking the coupler assembly in a coupled mode. A locking device is engageable with the connecting device when the motor operator and the gang switch are disconnected. The locking device locks the connecting device in a first position in which the gang switch is opened, and locks the connecting device in a second position in which the gang switch is closed. |
173 |
Interlock latch for electrical operator |
US608803 |
1996-02-29 |
US5700985A |
1997-12-23 |
Kenneth M. Fischer; Craig J. Puhalla |
An electrical operator includes a housing; a motor driven ball screw for operating the handle of a circuit breaker in an electrical mode of operation, and a handle extension for operating the circuit breaker handle in a manual mode of operation; a slider plate sliding through an opening of the housing between an intermediate position enabling the manual mode of operation, an inner position enabling the electrical mode of operation, and an outer position wherein the manual and electrical modes are disabled; and a cantilevered latch spring member connected to the slider plate. The free end of the cantilevered latch spring member engages the housing at about the opening thereof to stop the slider plate in its manual intermediate position. The free end of the cantilevered latch spring member deflects toward the slider plate to disengage from the housing and permit the slider plate to enter the inner electrical position thereof. |
174 |
Electric operating device for circuit breaker |
US70192 |
1993-06-02 |
US5387770A |
1995-02-07 |
Youji Ikehata; Shinji Yokota |
An electric operating device for a circuit breaker includes a cam which is turned in a predetermined direction by an electric motor which rotates in response to operating signals, and a slider having cam engaging portions which make engagement and disengagement every half revolution of the cam, and an opening into which the handle of the circuit breaker is inserted, the slider being slidable in the directions of the "on" and "off" operations of the handle. In the device, in response to the "on" and "off" operations, the cam engaging portions of the slider are disengaged from the cam, respectively. With the device, the tripping of the circuit breaker handle can be displayed without an intricate mechanism nor an additional space. |
175 |
Circuit interrupter having improved operating mechanism |
US788707 |
1991-11-06 |
US5224590A |
1993-07-06 |
Stanislaw A. Milianowicz; Edward J. Klimek; William Q. Aglietti; Henry J. Remic, Jr.; Mark L. Lotzmann |
A circuit breaker having a contact movable between open and closed positions, includes a closing spring assembly having a closing spring and first and second brackets. The closing spring assembly is chargeable when in a reset position in which the first bracket is hooked by a first hook. The closing spring is charged, manually or electrically, with support of the second bracket being transferred to a second hook. The closing spring is discharged to close the circuit breaker, with the closing spring assembly moving from the reset position to a discharged position in the process. The closing spring assembly is then moved as an integral unit, back to the reset position, with the closing spring again being charged, enabling the circuit breaker to immediately reclose in the event of a trip due to a transient condition. An improved breaker operating mechanism and power operated charging mechanism, are also disclosed. |
176 |
Integral manual on/off crank assembly |
US709008 |
1991-05-31 |
US5196658A |
1993-03-23 |
Lance Gula |
An electric operator having a reciprocally mounted actuator is adapted to be mechanically coupled to an operating handle from a molded case circuit breaker or a molded case switch for moving the operating handle between an open position or, alternatively, to a closed position. The electric operator includes an electric motor for driving the actuator and allowing the circuit breaker to be controlled from a remote location and a mechanical crank assembly which alternatively allows for manual operation of the actuator in the event of a loss of electric power to the electric motor. |
177 |
Automatic transfer switch |
US176756 |
1988-04-01 |
US4804933A |
1989-02-14 |
James A. Becker; Lawrence F. Freitag; Frank W. Kussy |
An automatic electric load transfer switch incorporates an over-the-center spring mechanism to operate switch contacts. The spring mechanism has a first position at which the electric load is connected to one electricity source and a second position at which the load is connected to another electricity source. The spring mechanism is driven by a solenoid activated cam shaft. An apparatus is provided for halting the movement of the spring mechanism at a position intermediate the first and second positions at which the load is not connected to either electricity source. The halting apparatus is releasable so that the spring mechanism can continue its movement between the first and second positions. |
178 |
Circuit breaker operating apparatus |
US357660 |
1982-03-12 |
US4439653A |
1984-03-27 |
Hiroshi Umino; Ikuo Takano |
A circuit breaker operating apparatus is provided which includes a frame, a rotatable closing shaft attached to the frame, a first member disposed on one end of the closing shaft for rotating the closing shaft only in one direction, a second member disposed on the other end of the closing shaft for rotating the closing shaft only in the same direction as the first member rotates, and alternately with the first member and a closing cam fixedly secured to the closing shaft which rotates pivotally about the closing shaft in the same direction as the closing shaft rotates. The circuit breaker operating apparatus also includes a spring member provided with one end fixedly secured to the frame, the other end, to the closing cam respectively. The closing cam rotates for charging closing energy into the spring member, and rotates also for discharging the closing energy charged within the spring member after having rotated in a specified constant angle. The circuit breaker operating apparatus further includes a linkage provided with one end sliding on the closing cam, a coupling shaft disposed on the frame and coupled to the other end of the linkage, which rotates depending upon the linkage movement effected by rotation of the closing cam, thereby moving movable contacts into open or closed position, and a tripping member which operates in response to a command signal based on occurrence of overcurrent of abnormalities, thereby driving the linkage. |
179 |
Switch operating mechanisms for high voltage switches |
US701064 |
1976-06-30 |
US4107486A |
1978-08-15 |
David M. Evans |
A three-phase, high voltage switch arrangement is operated through a connected drive shaft by a switch operating mechanism that can be either driven by motor power or manually operated. When manual operation is desired, a crank handle is folded out of a stored position to an operating position. An improved mechanism is provided to prevent the crank handle from operably engaging the switch operating mechanism until stored torsional energy (i.e., the potential energy due to torsional strain) in the drive shaft has been released thereby avoiding improper operation, such as unexpected whipping of the handle. In addition, when the crank handle is folded out to its operating position, the motor is disabled so that the motor can not be operated while the handle is engaged with the mechanism so that the handle cannot be driven by the motor. When it is desired to disconnect the switch operating mechanism from the switch so that maintenance and testing can be performed, a selector handle may be operated that disconnects the drive shaft from the operating mechanism and locks the drive shaft so that the switch cannot be accidentally opened or closed due to wind or vibrational forces. Also, while the selector handle is being operated, the motor cannot be operated while the drive shaft is being disconnected and locked. |
180 |
Motor driven operator for high voltage switch |
US3508179D |
1968-05-16 |
US3508179A |
1970-04-21 |
BERNATT JOSEPH; EVANS DAVID M |
|