S&c Electric Company

Other

Maclean-fogg Company

Michael R Maroney

Nicholas Seng

Alejandro Montenegro

James W Barker, Jr

Goran Djogo

Thomas J Dyer

Bethany McDearmon

David J Beseda

Michael Quinlan

Keith W Benson

Joseph W Milton

Jason R Bogusz

Daniel Desmond

Phillip J Fahey

Karl M Bogacz

Alireza Tajfar

Leo Caro

Jim Barker

Hector Roman

A transformer assembly including a transformer that is part of an underground residential power distribution circuit and that provides fault isolation and restoration. The transformer assembly includes an enclosure enclosing a primary winding and a secondary winding. The transformer assembly also includes first and second switching devices mounted to a panel of the enclosure, where each switching device includes an outer housing, a transformer interface electrically coupled to the primary winding, a connector interface electrically coupled to a first connector and a vacuum interrupter having a fixed contact and a movable contact. The fixed contact is electrically coupled to the connector interface or the transformer interface and the movable terminal is electrically coupled to the other connector interface or the transformer interface.

Transformer for underground radial loop network

An insulating rotary diaphragm for a vacuum interrupter (VI) electrical switch. The insulating diaphragm is designed for use in underground or pad-mounted VI switches where an external lever is rotated by a line worker to manually open the switch. A torsional insulating rod is coupled between a switch actuator and the external lever, and the diaphragm maintains constant contact with the insulating rod and an outer housing when the lever and rod are rotated, thus ensuring adequate isolation between the actuator and the lever. The diaphragm deforms torsionally when the lever and rod are rotated. This configuration allows the actuator to be at medium voltage, eliminates the need for a translational insulating rod between the medium voltage switch components and the lever, and thereby reduces the overall length of the VI switch.

Rotary diaphragm in vacuum interrupter switch

A switching device that is part of a transformer in an underground residential power distribution circuit and provides fault isolation and restoration. The switching device includes a transformer interface for coupling the device to the transformer and a connector interface for coupling the device to a connector. The device also includes a vacuum interrupter having a fixed terminal and a movable terminal, where the fixed terminal is electrically coupled to the connector interface and the movable terminal is electrically coupled to the transformer interface. A control rod is coupled to the movable terminal, an actuator assembly is coupled to the control rod and is operable to move the control rod to open and close the vacuum interrupter. A capacitor is electrically coupled to the fixed terminal, and provides an interface for power line communications signals, voltage sensing, help determine power flow direction and help determine the distance to a fault.

Loop restoration switching device

A switch assembly including a switch and a high impedance element used for energy harvesting purposes that are connected to a power line at one end and assembly electronics at an opposite end, where in one non-limiting embodiment the switch assembly has particular application for use in connection with a vacuum interrupter. The high impedance element has higher impedance than the switch so that current flows through the switch from the power line when the switch is closed and through the high impedance element from the power line when the switch is open, where power from the high impedance element can power a switch closing device, such as a solenoid actuator. The high impedance element can be a resistive element, a capacitive element or a combination of a resistive and capacitive element.

Switch assembly with energy harvesting

A cable adapter that is operable to electrically couple an existing switchgear cable used for old switchgear to a connection location on new switchgear. The adapter includes an elbow portion that is configured to be electrically coupled to a connector for the switchgear cable and an extension portion that is electrically coupled to the elbow portion. The adapter also includes a cylindrical connection portion electrically coupled to the extension portion and being configured to be electrically coupled to the new switchgear at the proper location. In one embodiment, the elbow portion, the extension portion and the connection portion combine as a single piece member including an internal conductor, a dielectric insulation rubber layer covering the internal conductor and an outer semi-conductive rubber layer covering the insulation layer, where the rubber layers are molded over the conductor.

Cable center line adapters for switchgear retro-fit applications

An air-termination adapter that encloses an air-termination connection assembly to electrically isolate components that are at hazardous voltages and allow the air-termination connection assembly to be coupled to a dead-front termination for electrical equipment. In one embodiment, the adapter includes an outer body having a lower conical section, a middle cylindrical section and an upper cylindrical connection section all defining an internal chamber. The air-termination connection assembly extends into the chamber from the bottom of the lower section and is coupled to a connector rod at one end. The connector rod is coupled to a connector associated with a conical interface in the connection section to provide the dead-front termination to the electrical equipment.

Adapter system for conversion of an installed medium-voltage air termination to a dead-front separable connector

A conductor assembly for establishing a connection to a power distribution unit is disclosed. The conductor assembly includes one or more conductors have a conductive rod. Each end of the conductive rod has an end forming a ball member. The conductor assembly also includes a connector having a clamp mechanism to receive the ball member of the conductive rod. A fastener threadably couples with a conductor on power distribution unit to rigidly secure the conductor assembly to the electrical equipment units.

Conductor assembly for power distribution equipment

A busbar assembly for interconnecting electrical equipment units is disclosed. The busbar assembly includes one or more conductors have a conductive rod. Each end of the conductive rod has an end forming a ball member. The busbar assembly also includes two or more connectors having a clamp mechanism to receive the ball member of the conductive rod. A fastener threadably couples with a conductor on an electrical equipment unit to rigidly secure the busbar assembly to the electrical equipment units.

Adjustable bus bar for power distribution equipment

An electrical equipment connector having a replaceable bushing for an electrical power connector is disclosed. The replaceable bushing includes an insulator body having a tapered exterior surface formed on the first end, and a tapered interior surface formed in a second end. A conductor body extends through the insulator body and has a through bore with a counterbore at one end. A captured bolt in the counterbore engages a threaded tap in a conductor body disposed in the housing such that the tapered interior surface fits over and conforms to a tapered exterior surface on the housing connector.

Replaceable bushing for electrical equipment

A method and arrangement is provided to form a gas-tight joint between an end flange and a tubular rod. The joint is formed via a heat-shrink process to provide an interference fit. The rod is provided with grooves to retain adhesive during the assembly process.

Method and arrangement for providing a gas-tight joint

Method and arrangement for providing a gas-tight housing joint

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. The housing is provided with grooves to retrain adhesive during the assembly process.

Growing community of inventors

Chicago, IL, United States of America

Michael R Maroney