| Patent Number |
Title Of Patent |
Date Issued |
| 7440251 |
Multi-path switching configuration |
October 21, 2008 |
| A multi-path switching configuration provides independent switching of multiple circuit paths. In a preferred arrangement, a plurality of circuit interrupters have one end connected in common with each other and a second end providing a circuit path connection. An operating facility |
| 7391597 |
Switchgear with arc-resistant features |
June 24, 2008 |
| An arrangement capable of being assembled with either an existing installed electrical equipment enclosure having an access door or during the fabrication and assembly of such an electrical equipment enclosure that increases the arc-resistant capabilities and characteristics of the e |
| 7352265 |
Manual trip control method and arrangement for multiple circuit interrupters |
April 1, 2008 |
| A manual trip control method and arrangement is provided to manually trip a plurality of circuit interrupters. Specifically, where the circuit interrupters include magnetic-actuator-driven vacuum interrupters including permanent magnets that hold the contacts of the circuit interrupt |
| 7314021 |
Operation indicator |
January 1, 2008 |
| An operation indicator is provided to indicate the open/closed status of device, e.g. a circuit interrupter operable between open and closed operating positions. The operation indicator includes two indicator members having cooperating interleaved or interlaced construction such that |
| 7279654 |
Current sensor |
October 9, 2007 |
| A current sensor for installation on a conductor without breaking the conductor may include an insulating base having a conductor supporting portion and a conductive coil disposed within an outer surface of the insulating base. A magnetically permeable conductor retaining member incl |
| 7253603 |
Current sensor arrangement |
August 7, 2007 |
| A current sensor is provided including a Rogowski coil in an assembly that is easily positioned about a conductor, e.g. without cutting the line or deenergizing the line. In one arrangement, the Rogowski coil is formed about a split helical structure such that the ends of the Rogowski co |
| 7230411 |
Voltage sensing apparatus for medium-voltage electrical power distribution systems |
June 12, 2007 |
| A molded voltage sensor is provided that achieves excellent sensing accuracy over a wide temperature range by molding promary and secondary capacitances are of a voltage divider into a solid dielectric material and wherein th e capacitances are preferably fabricated from the same mat |
| 7122917 |
Control arrangement and isolated power supplies for power electronic system |
October 17, 2006 |
| A control method and arrangement is provided that monitors the condition and operating parameters of a power electronic system having power electronic devices to optimize operation of the power electronic system. Further, electrically isolated power supplies to individual control sta |
| 7026560 |
Separable, flexible electrical connection arrangement |
April 11, 2006 |
| A separable, flexible connection arrangement is provided for connection of two conductors. In one arrangement, the separable, flexible connection arrangement is utilized to provide an externally removable bushing for connecting an electrical component located within a sealed enclosure. |
| 6963475 |
Monitoring and control for power electronic system |
November 8, 2005 |
| A control method and arrangement that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities to optimize operation of the power electronic system. The arrangement increases reliability of |
| 6950764 |
Arrangements to detect and respond to disturbances in electrical power systems |
September 27, 2005 |
| A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds |
| 6944004 |
Arrangements to detect and respond to disturbances in electrical power systems |
September 13, 2005 |
| A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds |
| 6943313 |
Rotating arc fault-current interrupter |
September 13, 2005 |
| A rotating arc fault-current interrupter, also known as an arc spinner interrupter, is provided that establishes an easily visible open gap via a movable blade member having a first portion for engaging a stationary main contact and a second portion formed by an arcing electrode for enga |
| 6941233 |
Arrangements to detect and respond to disturbances in electrical power systems |
September 6, 2005 |
| A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds |
| 6922132 |
Fuse cutout with improved dropout performance |
July 26, 2005 |
| An improved fuse cutout is provided of the type having a fuse tube assembly that moves to a dropout position upon operation in response to a fault current or other overcurrent. These types of fuse cutouts include the pivotal mounting of the fuse tube assembly with respect to a support hi |
| 6922087 |
Control arrangement for power electronic system |
July 26, 2005 |
| A control arrangement and method is provided that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities via appropriate action to optimize operation of the power electronic system. T |
| 6917186 |
Monitoring and control for power electronic system |
July 12, 2005 |
| A control method and arrangement that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities to optimize operation of the power electronic system. The arrangement increases reliability of |
| 6867679 |
Mounting for circuit interrupter |
March 15, 2005 |
| A mounting for a circuit interrupter is provided that facilitates the easy removal and insertion of the circuit interrupter. The mounting includes upper and lower terminal and support arrangements that cooperate with upper and lower device mounting studs of a circuit interrupter. The dev |
| 6777043 |
Fuse tube and method of manufacture thereof |
August 17, 2004 |
| An arc-quenching composition is provided including a filler, a fiber and a binder. Preferably, the filler includes an arc-quenching compound such as melamine. The binder includes a thermosetting resin to facilitate forming of the arc-quenching composition into an arc-quenching fuse tube. |
| 6767036 |
Gas tight housing joint using an interference fit with adhesive |
July 27, 2004 |
| A method and arrangement is provided to form a gas-tight joint between two housing portions, e.g. between an end flange and a tubular pole-unit housing for a circuit interrupter or an insulating support column. The joint is formed via a heat-shrink process to provide an interference fit. |
| 6720857 |
High voltage fuse |
April 13, 2004 |
| A fuse is provided that is suitable for operation in unusual environments and includes an operation indicator that is simple and reliable. A movable arcing tube is released during operation. As the arcing tube moves outside the fuse assembly, a latching spring moves into a receiving groo |
| 6714395 |
Method for detecting faults internal to a distribution equipment configuration |
March 30, 2004 |
| System and equipment protection is provided for an electrical power distribution system via one or more protection arrangements for detecting and responding to faults in electrical power distribution systems. The one or more protection arrangements detect whether faults are external or |
| 6696658 |
Circuit interrupter and operating mechanism therefor |
February 24, 2004 |
| A single-pole circuit interrupter is provided that includes a sealed housing containing a pressurized gas, relatively movable contacts and an operating mechanism for operating the relatively movable contacts. The operating mechanism is responsive to a low-speed rotational charging input |
| 6674027 |
Operating arrangement for mechanism |
January 6, 2004 |
| An operating arrangement is provided for a mechanism or the like, e.g. an operating mechanism for a circuit interrupter for electrical power transmission and distribution systems where the operating mechanism operates on stored energy and requires a recharging operation after the sto |
| 6668232 |
Arrangements to detect and respond to disturbances in electrical power systems |
December 23, 2003 |
| A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds |
| 6667601 |
Control arrangement and method for power electronic system |
December 23, 2003 |
| A control arrangement and method is provided that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities via appropriate action to optimize operation of the power electronic system. T |
| 6646216 |
Operating mechanism with improved input drive arrangement for switches and circuit interrupters |
November 11, 2003 |
| 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 in |
| 6636101 |
Control arrangement and method for electronic device |
October 21, 2003 |
| A control arrangement and method is provided for electronic devices in which an electronic switch is maintained in a conducting state at all times other than when it is desired to render the electronic switch nonconducting. In a specific embodiment, a latched control signal is utiliz |
| 6628494 |
Protective device and system |
September 30, 2003 |
| A multi-pole protective device and system for electrical power transmission and distribution systems is provided that operates a multi-pole tripping system at ground level from a line-potential tripping device contained within each pole of the multi-pole system. The system includes multi |
| 6601002 |
Arrangements to detect and respond to disturbances in electrical power systems |
July 29, 2003 |
| A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds |
| 6538422 |
Voltage sensor bushing assembly with integral capacitance screen |
March 25, 2003 |
| A voltage sensing apparatus includes an output for a voltage tap point that is useful in representing the voltage on a conductor that passes through the voltage sensing apparatus. The voltage sensing apparatus also performs the function of a separable insulated conductor, e.g. a conventi |
| 6504696 |
Control arrangement and method for power electronic system |
January 7, 2003 |
| A control arrangement and method is provided that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities via appropriate action to optimize operation of the power electronic system. T |
| 6486426 |
Contact arrangement for electrical power distribution switch or the like |
November 26, 2002 |
| A contact arrangement is provided, e.g. of the type that functions as a wiping contact for a moving contact such as a pivotally mounted switch blade in an electrical power distribution switch. The contact arrangement in an illustrative embodiment includes spaced apart contact members tha |
| 6483067 |
Electrical power distribution switch |
November 19, 2002 |
| An electrical power distribution switch includes an operating member that carries a first plurality of spaced switch contacts and a support arrangement for pivotally supporting the operating member. One of the ends of the operating member includes a circumferential bearing surface. The |
| 6429393 |
Current transfer arrangement for circuit interrupter |
August 6, 2002 |
| A current transfer arrangement is provided for a circuit interrupter that provides support for the contacts of the circuit interrupter and also provides current transfer between the contacts of the circuit interrupter and the external circuit terminal connection points directly through t |
| 6426616 |
Phasing and indicator arrangements for switchgear or the like |
July 30, 2002 |
| A phasing and indicator arrangement is provided for switchgear or the like that responds to electrical sources and provides voltage indicator functions, phasing determinations, and self-test features. Phasing provisions are responsive to two or more voltage sensors proximate respecti |
| 6324073 |
Clamping arrangement for compression-mounted power electronic devices |
November 27, 2001 |
| A clamping arrangement is provided for compression mounted power electronic devices that is assembled from component parts to form a clamping module. The clamping module provides suitable clamping force to a power electronic device interposed between two heat sink arrangements. The clamp |
| 6137191 |
Source-transfer switching system and method |
October 24, 2000 |
| A control arrangement and method is provided for source-transfer switching systems including a high-speed control arrangement and high-speed switches to control the transfer of a load from one source to another with minimal transfer delays. The system supplies an electrical load with alt |
| 6127637 |
Disconnect feature for interrupter |
October 3, 2000 |
| A disconnect feature is provided for a circuit interrupter that is conveniently incorporated with the circuit interrupter. The disconnect feature is operable between closed and open positions, providing a visible open gap in the open position. The disconnect feature includes a pivotally |
| 6114642 |
Switchgear assembly |
September 5, 2000 |
| Switchgear is provided that includes a housing enclosing electrical components having switch blades that establish visible open gaps in an open position. The switchgear includes an array of operating controls and viewing provisions to observe the open switch blades. The operating con |
| 4142078 |
Compact mounting assembly for electrical switching elements |
February 27, 1979 |
| A mounting assembly for electrical switching elements oppositely mounts together the switching elements in a pair. Each switching element, which may be a high-voltage fuse, a disconnect blade, or the like, has a first and a second support point. A central support, which may be dihedral, |
