General Electric Technology Gmbh

Alstom Technology Limited

Areva T&d Sa

Victor F Hermosillo

Andrew Chovanec

Wolfgang Grieshaber

Joël Ozil

Cyril Gregoire

Daniel C Schiffbauer

Quentin Rognard

Chase Colton Peltier

Matthieu Barre

Othman Zakaria

Steven Grosick

René Rosset

Thomas Tometich

Charles R Hilland

James M Main

Justin M Rebovich

Ramaprasad E Lakshminarayana

Alaa Alameddine

Cyril GRÉGOIRE

Ramaprasad Lakshminarayana

Daniel Schiffbauer

The application relates to certain embodiments of an improved insulating support assembly for a circuit breaker. One embodiment comprises a strut and two metallic shields. The strut comprises an elongated main body and two metallic inserts. The main body is continuously curved from one end to the other end of the main body, each end of the main body being configured to face a radial direction of its component, the main body being configured to be in a same plane as a plane containing both radial directions of the components; each metallic shield is configured to be assembled to its respective end of the main body through its respective metallic insert and affixed to an outer surface of its respective component with fixing elements, each metallic shield having a C-shaped profile shaped to accommodate the outer surface of its respective component.

Insulating support assembly for a circuit breaker

Embodiments of the disclosure can include systems and methods for limiting transient over-voltages occurring across a circuit breaker. These embodiments include providing a middle tank portion. They further include providing a first portion coupled to a first side of the middle tank portion, and a second portion coupled to a second side of the middle tank portion. They further include providing a first high voltage terminal coupled to the first portion, and a second high voltage terminal coupled to the second portion. They further include providing a post insulator supported and extending from the middle tank portion. They further include providing a first surge arrester connecting the first high voltage terminal to a first connector extending from the post insulator, and a second surge arrester connecting the second high voltage terminal to a second connector extending from the post insulator.

Dead tank circuit breaker surge arrester

To improve an interruption process, a switching chamber for a gas-insulated circuit breaker comprises a thermal channel having a bend part delimited by an outer surface of an auxiliary insulating nozzle including a first bend section on a thermal volume side, a third bend section on an arcing region side, and a second bend section connecting the first bend section to the third bend section, and by an inner surface of a main insulating nozzle including a fourth bend section on a thermal volume side, a sixth bend section on an arcing region side, and a fifth bend section connecting the fourth bend section to the sixth bend section, such that in axial section view, the first to sixth bend sections form 30 degrees arcs of circles having respective radii R, R, R, R, Rand Rsuch that R&#x3e;R&#x3e;Rand R&#x3e;R&#x3e;R

Switching chamber for a gas-insulated circuit breaker comprising an optimized thermal channel

An internal tulip sleeve for the female arcing contact of a high voltage circuit breaker. According to the invention, this sleeve comprises a body of non-magnetic steel or of copper-tungsten alloy, this body comprising an internal face covered with copper.

Internal tulip sleeve of the female arcing contact of a high voltage electric circuit breaker

The invention relates to a circuit breaker () for an electricity transport installation, the circuit breaker comprising a tank (), a vacuum bottle () that has a stationary contact (), a movable contact (), and sealing means (), a casing () that is arranged inside the tank (), that electrically connects the movable contact () to an electrical conductor (), and that co-operates with an outside wall of the vacuum bottle () to define a volume () that is taken to a pressure close to atmospheric pressure, and feeder means for feeding the inside volume () of the casing (), which feeder means pass through the inside volume () of the tank (), the circuit breaker being characterized in that the feeder means for feeding the inside volume () of the casing () consist in a tubular element () made of insulating material.

Circuit breaker comprising an insulating hollow tube

A gas insulated high voltage electrical device comprising: at least one conductor for conducting a high voltage current; a longitudinal enclosure for enclosing the at least one conductor, the longitudinal enclosure comprising an interior wall extending along a longitudinal axis; a particle trap formed on the interior wall and extending along the longitudinal axis, the particle trap comprising a part of the interior wall and a longitudinal shielding cover extending along the longitudinal axis to delimit a dielectrically shielding area in the enclosure for trapping particles; the shielding cover being made of an electrically conducting material and comprising at least two electrical connections to the interior wall spaced from each other along the longitudinal axis, the shielding cover comprising a mechanical resonating frequency that makes the shielding cover longitudinally oscillate when the high voltage current passes through the conductor.

Gas insulated high voltage electrical device equipped with an enhanced particle trap

A gas exhaust diffuser for a circuit breaker, comprising a first casing extending longitudinally along a principal axis with an open end to allow gas to enter and a closed end, and a second casing coaxial to the first casing, extending along the principal axis, with at least one outlet to allow gas to escape, the closed end of the first casing being arranged in the second casing and the first casing having at least two radial openings near its closed end to provide a fluid communication between the first and second casing. A plurality of incurved elements are positioned radially in the second casing at the at least one radial opening to create a rotation of an entering exhaust flow in a plan perpendicular to the principal axis, thereby generating a substantially helicoidally-shaped exhaust flow path in the second casing.

Exhaust diffuser for a gas-insulated high voltage circuit breaker

The gas exhaust comprises a generally cylindrical shaped casing closed by a bottom at one end and with openings to allow gas to escape. A duct is arranged in the casing to delimit a central passage inside the duct, and an annular passage surrounding the central passage outside the duct between it and the casing. There is a communication consisting of four holes in the duct close to the bottom to form a communication between the central passage inside the duct and the annular passage. The casing includes two diametrically opposite openings located in a horizontal plane.

Gas exhaust for circuit breaker

Growing community of inventors

Bethel Park, PA, United States of America

Victor F Hermosillo