Who invented switchgear




















Digital switchgear from ABB combine proven technologies with digital components and software solutions to enhance safety, reduce installation cost while significantly reduce space needed and optimize operational cost while constantly detecting condition and maintenance needs.

By using multiple sensors to measure temperature and humidity, and by monitoring utilization and operating cycles of electrical devices, a digital switchgear can monitor its own health and indicate when conditions change. That way it can predict potential failures before they occur or alert when maintenance is needed, avoiding costly or unnecessary downtime.

Did you know that failures of electric equipment can be significantly reduced just by service expertise? Did you know an ABB circuit breaker can monitor environmental conditions around the clock to better protect an electrical system? Did you know that over one million ABB protection relays supervise the safe continuity of electric networks in over countries?

Did you know ABB has invented a revolutionary solid-state circuit breaker concept that meets the highest demands of renewable energy solutions and industrial energy storage systems? Did you know ABB frequency converters are helping preserve interiors and precious artwork at the historic State Hermitage Museum in the cultural capital of Russia?

Did you know that a smart sensor, about the size of a smartphone, can convert traditional electric motors into smart, wirelessly connected devices? Our website uses cookies which are necessary for running the website and for providing the services you request. We would also like to set the following optional cookies on your device.

In addition, baffles or barriers may be provided within the enclosure to redirect or absorb incident energy from internal arcing. Date of Patent: January 12, Assignee: Rockwell Automation Technologies, Inc. Inventors: Rachel M. Bugaris, Daniel Robert Doan. Semiconductor device. Abstract: A semiconductor device of an embodiment includes: a substrate; circuit units arranged above the substrate, each of the circuit units including a first electrode, a second electrode, a first switching element and a second switching element electrically connected in series between the first electrode and the second electrode, a capacitor electrically connected in parallel to the first switching element and the second switching element between the first electrode and the second electrode, and an AC electrode connected between the first switching element and the second switching element; and a housing that encloses the circuit units.

A common potential is applied to the first electrodes of the respective circuit units, a common potential is applied to the second electrodes of the respective circuit units, and the AC electrodes of the respective circuit units are connected to one another. Filed: August 13, Date of Patent: December 15, Assignee: Kabushiki Kaisha Toshiba. Inventors: Kazuto Takao, Takashi Shinohe. Publication number: Further, the foregoing features may be designed to provide electrical enclosures that comply with industry guides and standards for arc resistant ratings.

Type: Application. Filed: January 14, Publication date: May 7, Bugaris, David T. Abstract: The present invention relates to an arc deflecting and ventilation assembly comprising of a slotted unit , wire mesh arrangement and an array of are plates The slotted unit is provided with a plurality of slots and is fixedly mounted to the electrical enclosure and is provided with an open face , a closed face and a wall structure The arc deflecting and ventilation assembly provides ventilation to the electrical enclosure during normal conditions and also in an event of arcing.

The present invention also provides systems for arc deflecting and ventilation of hot gases generated within electrical enclosures Filed: October 28, Publication date: April 30, Module assembly for the application-specific construction of power factor correction systems, filter systems, and absorption circuit systems.

Abstract: A module assembly for the application-specific construction of power factor correction, filter, and absorption circuit systems in selectively non-choked, choked, protective or thyristor-connected design, comprising a busbar system, fuse holders, switch components, at least one choke, and power capacitors. A first module unit has a first section for receiving busbars, fuse holders, fuses, a busbar cover as protection against accidental contact with the busbar, and a second, trough-like section for receiving switch components that can be mechanically fixed and electrically contacted.

A second module unit is designed to receive switchable capacitor winding blocks, enclosing the at least one winding block, insulating the same. Filed: April 13, Assignee: System Electric GmbH. Inventor: Klaus Holbe. Abstract: Circuit breakers with a rotary handle attached to an inwardly oriented shaft that connects to a gear assembly that translates rotational input to linear input also include a trip assist spring in communication with the rack gear so that, in operation, the trip assist spring applies a force to the operator slider and forces the handle to a consistent trip position.

Filed: September 30, Publication date: April 16, Inventors: Stephen W. Oneufer, Robert A. Morris, Daniel B. Modular draw out fan module with chimney design for cooling components in low voltage switchgear. Abstract: A cabinet structure for a switchgear assembly.

The cabinet structure includes a cabinet having upper and lower vents and a breaker cradle for holding a circuit breaker having primary disconnects for connecting the circuit breaker to bus bars. The cabinet further includes an air passageway located between the upper and lower vents, wherein the air passageway extends vertically through the primary disconnects and the cabinet.

Further, the cabinet includes a fan module having at least one fan for drawing outside air through the lower vent, the air passageway and the primary disconnects for cooling the primary disconnects. Filed: December 12, Date of Patent: April 14, Assignee: Siemens Industry, Inc. Inventors: Rahul Rajvanshi, Harry W.

Josten, James Keith Flowers. Pole unit guide. Abstract: A guide assembly for a switchgear assembly is provided. The guide assembly includes an elongated support member and a passage. The support member is coupled to and extends from a housing assembly rear sidewall.

The support member extends in the circuit breaker assembly direction of travel. The passage is disposed on the circuit breaker assembly base and also extends in the circuit breaker assembly direction of travel.

The support member is substantially aligned with the passage. In this configuration, as the circuit breaker assembly moves between a withdrawn position and an installed position, the support member moves between a first position, wherein the support member is not disposed in the passage, and a second position, wherein the support member is partially disposed in the passage. When the support member is in the second position, the support member bears a portion of the weight of the circuit breaker assembly base.

Filed: December 7, Date of Patent: March 17, Assignee: Eaton Corporation. Providing a cooling system for a medium voltage drive system. Abstract: In an embodiment, a medium voltage drive system includes a transformer, multiple power cubes each coupled to the transformer, and a manifold assembly. Each power cube includes cold plates each coupled to a corresponding switching device of the cube, an inlet port in communication with a first one of the cold plates and an outlet port in communication with a last one of the cold plates.

The manifold assembly can support an inlet conduit and an outlet conduit and further support first and second connection members to enable blind mating of each of the first connection members to the inlet port of one of the power cubes and each of the second connection members to the outlet port of one of the power cubes to enable two phase cooling of the plurality of power cubes.

Filed: September 7, Date of Patent: March 10, Inventors: Devdatta P. Pham, Rose Craft, Randall Pipho. Terminal box for electrical connection to an electric motor. Abstract: A terminal box for electrical connection to an electric motor, in particular to a circulating pump, includes at least one housing part, designed as a cast plastic part, and an operating switch wherein the operating switch is arranged on the housing part, wherein at least one fixed electrical switch contact of the operating switch is embedded in the housing part.

The pump aggregate features one such terminal box. Filed: August 28, Date of Patent: January 20, Inventor: Jorgen Ellegaard. Motor operator for switchgear for mains power distribution systems.

Abstract: A power operator for switchgear for use in mains power distribution systems such as public medium high voltage distribution systems, where the switchgear comprises a closed cabinet 5 with an operating shaft protruding therefrom that is rotatable between two positions and has a coupling part.

The motor operator includes a housing 11, 20, 21, 27 which is mountable on an external surface 4 of the switchgear cabinet 5 , and a rotatable connection shaft connected to an electromechanical linear actuator. The connection shaft has a first coupling part which connects with the coupling part of the switchgear in a longitudinal axial sliding and non-rotational interlocking manner. The housing 11, 20, 21, 27 is a tube element which is tamper resistant, is relatively easy to seal against dust and moisture, and is inexpensive to manufacture.

Filed: October 31, Date of Patent: January 13, Paulsen, Glenn Smith. Passive arc management system with a flue chamber. Abstract: In an electrical distribution cabinet a mechanism providing quick, reliable, passive arc blast control has a flue chamber surrounding the likely arc site such as an electrical connection point. The flue chamber provides a flue channel which lengthens the arc and attenuates the current and temperature until the arc is extinguished. Preferably, the flue chamber and channel are formed of opposable open-faced polyhedral structures, one fitting inside the other.

The mechanism is particularly suited for draw-out circuit breaker connections in a switch gear cabinet. Filed: April 20, Date of Patent: December 30, Inventor: Timothy Robert Faber. Abstract: A spout for a connection between a bus bar and a circuit breaker in switchgear includes a housing and a fixed contact. The housing is formed of insulative material and includes a tubular body having an inner cavity and a radial first ventilation opening, a base portion having a first longitudinal opening, and a fixed contact receiving portion having a second longitudinal opening.

The fixed contact is formed of a conductive material, has an outer contact surface exposed through the second longitudinal opening, and forms a portion of an outer surface of the spout. A switchgear includes a wall dividing a circuit breaker compartment from a bus bar compartment, and the base portion of the spout is securable to the wall.

A method of increasing heat dissipation within switchgear using the spout includes securing a bus bar to the outer contact surface, and dissipating heat through the radial ventilation opening.

Filed: June 3, Publication date: December 18, Applicant: General Electric Company. Switchgear spout design. Abstract: A spout assembly is provided. The spout assembly includes a spout and a spout base. The spout base has a cross-sectional area that is smaller than a spout sized to enclose an electrical switching apparatus electrical coupling.

That is, the spout base includes a CT support surface with a cross-sectional area that is smaller than the spout cross-sectional area. Current transformers are disposed upon the spout base CT support surface. Filed: December 27, Date of Patent: December 16, Inventors: James E.

System having electrical equipment integrated on a structure and a method for isolation of electrical equipment thereof. Abstract: A system having electrical equipment integrated on a structure is provided. The system includes at least one electrical equipment located at a spaced apart relationship and mounted on at least one structure. A method is provided for isolation of electrical equipment. The method includes opening and closing a contact by engaging or disengaging one or more terminals of the electrical equipment correspondingly with a supply line or a distribution line by a mechanism for isolation.

The mechanism can be a handle or a moving mechanism which is associated with a movement in a vertical direction or horizontal direction or with a movement that provides isolation. Date of Patent: November 25, Locking structure for a truck of a switchgear drawout circuit breaker. Abstract: A truck 12?

The nut floats linearly with respect to the truck. Researchers from Siemens and Stanford University created an algorithm that decreases the cost for bandwidth and storage of data from industrial processes. At a glance and with just a few clicks, a smart city app designed for the next EXPO in Dubai provides each user with exactly the data they need.

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For the best experience we suggest that you download the newest version of a supported browser:. When ideas shoot out like sparks. Inventors of the Year Category Outstanding Invention High Voltage Switchgear Circuit breakers are needed to ensure that our energy supply systems run smoothly. The switching functions on their prototype are CO2-neutral. Related Content.



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