Eaton Corporation

Eaton Intelligent Power Limited

Westinghouse Electric Corporation

Other

Cooper Technologies Company

Eaton Coroporation

Eaton Corportion

John Joseph Shea

Jeffrey A Miller

Paul Richard Rakus

Nathan James Weister

Paul Jason Rollmann

Thomas Clements Pendrick

William Kingston Hanna

Yun-Ko N Chien

William Charles Pollitt

James D Smith

Jason B Carrodus

Xin Zhou

Kevin Lynn Parker

Michael Howard Abrahamsen

James Edward Smith

Glen C Sisson

Michael B Schulman

Paul Kimball Parker

Robert Kirkland Smith

Matthew Rain Darr

John A Wafer

Theodore James Miller

William E Beatty, Jr

Mark Alan Juds

Brian John Schaltenbrand

Karl F Schoch, Jr

Hongbin Wang

Ronald Dale Hartzel

Ganesh Kumar Balasubramanian

Christian Ruempler

Aaron Thomas Kozar

Ronald A Cheski

William R Crooks

Dan E Hrncir

Richard P Sabol

Ronald D Hartzel

James E Smith

Joseph C Engel

Charles John Luebke

Michael D Pearce

Richard Paul Malingowski

Birger Pahl

Mark Anthony Janusek

Neal E Rowe

James Alan Bauer

Stephen A Mrenna

Douglas Charles Marks

Henry Anthony Wehrli, Iii

Norman Davies

Francois Jean Marchand

Denis A Mueller

David Michael Olszewski

Louis Grant Campbell

Daniel Sims

Lawrence E Shea

Robert Neville Parry

Ronald W Brand

Benjamin Alex Rosenkrans

Kenneth D Kolberg

Stanley Ervin Moore

Yu Wei Chou

Thomas Mark Whalen

B Thomas Pier

James R Schachner

Miomir Blagoje Djordjevic

Lennart Jonsson

Thomas A Wilsdon

Kenneth W Sanner

Edmond F Kowal

John R Wilson

Valerie J Crooks, Executrix

William Ralph Crooks, Deceased

Neil E Rowe

Percy J Lipsey

Jordan C Lawrence

Louis Paich

Sisson Glen C

Lennart R Jonsson

William E Beatty

David M Olszewski

William C Politt

Systems, methods, and devices, for forming and using an arc flash mitigation switch are provided. In one exemplary embodiment, an arc flash mitigation switch includes a cylindrical shell having a first end cap and a second end cap located at either end of the cylindrical shell. A first and second conductive feed through extend through the first and second end cap, respectively, at one end, and at the other connect to a first and second electrode separated by a gap. The exemplary arc flash mitigation switch further includes a trigger feed through that receives a trigger current that commutates the external arc flash event into the arc flash mitigation switch, quenching the external hazard.

Arc flash mitigation switch for quenching external arc faults in low voltage switchgear

A compact disconnect device includes a magnetic arc deflection assembly including at least one set of stacked arc plates and at least one magnet disposed adjacent switchable contacts and establishing a magnetic field across the stacked arc plates. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC voltage circuitry well above 125 VDC with reduced arcing intensity and duration. The disconnect device may be a compact fusible disconnect switch device having dual sets of switch contacts in the same current path.

High voltage electrical disconnect device with magnetic arc deflection assembly

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.

Fusible switch disconnect device for DC electrical power system

An improved triggered arc flash arrester includes a shield apparatus disposed within an interior of an evacuated envelope and includes a first shield element and a second shield element. A plurality of conductors are partially disposed within the interior and are separated from one another by a gap. A first element of the shield apparatus is situated adjacent the envelope and is structured to protect the envelope from damage due to the high temperature plasma that results from an arc across the gap. A second element of the shield apparatus is interposed between the gap and at least a portion of the first element and is structured to protect the at least portion of the first element from damage due to an arc across the gap.

Triggered arc flash arrester and shield element for use therewith

An apparatus is for a power circuit providing an alternating current to a load. The apparatus includes a high frequency current sensor structured to cooperate with the power circuit to provide a high frequency current signal. A voltage zero crossing detector is structured to cooperate with the power circuit to provide a voltage zero crossing signal. A high pass filter is structured to provide a filtered current signal from the high frequency current signal. A threshold comparator is structured to provide an output when the filtered current signal exceeds a predetermined value. A processor is structured to receive the voltage zero crossing signal and the output of the threshold comparator and output a trip signal in response to undesired series arcing by detecting an unsymmetrical high frequency signal for a predetermined number of cycles.

Apparatus and method to detect a series arc fault of an electrical circuit

An electronic circuit includes a number of sensors structured to detect an arc flash from an uncontrolled arcing fault, and a trigger circuit, responsive to the detected arc flash, structured to trigger a triggering mechanism and cause a breakdown of a number of gaps within a low voltage arc flash switch.

Electronic circuit and low voltage arc flash system including an electromagnetic trigger

A low voltage arc flash switch includes a sealed housing and gas insulation within the sealed housing. A plurality of conductors include a number of gaps therebetween within the sealed housing. A triggering mechanism is structured to cause a breakdown of the number of gaps.

Low voltage arc flash switch

A wireless transponder unit having a maximum operating temperature and being structured to be disposed on an electrical joint includes: an integrated circuit configured to store identification information; and a resonant circuit electrically connected to the integrated circuit, the resonant circuit having a damping factor. The resonant circuit includes a capacitor, an antenna, and a resistor having a resistance and a positive thermal coefficient. A change in temperature of the wireless transponder unit causes a change in the resistance of the resistor and the damping factor of the resonant circuit. The maximum operating temperature of the wireless transponder unit is based on the damping factor of the resonant circuit.

Wireless transponder unit, electrical joint monitoring system including the same, and method of monitoring electrical joints

An arc management system for an electrical enclosure assembly is provided. The electrical enclosure assembly includes a housing assembly and a conductive bus assembly. The arc management system includes a number of conductive bus extension assemblies, a number of first and second arc horn assemblies, and a number of ground conductor assemblies. Each conductive bus extension assembly includes a conductive member coupled to the conductive bus assembly. Each first arc horn assembly includes a conductive arc horn member. Each first arc horn member is in electrical communication with an associated bus extension conductive member. Each second arc horn assembly includes a conductive arc horn member. Each ground conductor assembly includes a ground conductive member. Each second arc horn member in electrical communication with an associated ground conductor assembly ground conductive member. Each first arc horn member is associated with a second arc horn member and disposed an effective distance therefrom.

Arc management system for an electrical enclosure assembly

A washer assembly is for use with a fastener. The washer assembly includes a first conductive portion, a second conductive portion, and an insulating portion disposed between the first conductive portion and the second conductive portion. The first conductive portion, the second conductive portion, and the insulating portion form a variable capacitor having a capacitance based on an amount of force applied thereto by the fastener. A wireless transponder unit includes a control unit electrically connected to the variable capacitor and an antenna electrically connected to the control unit. The control unit is configured to sense the capacitance of the variable capacitor, to generate information representing the capacitance, and to output the information to a wireless reader unit via the antenna.

Washer assembly and joint monitoring system employing the same

A power circuit configured to generate and distribute DC electrical power, the power circuit includes a photovoltaic (PV) system that includes an array of PV modules electrically coupled to a combiner box, and an inverter positioned to receive DC electrical power from the array of PV modules and output AC electrical power. The PV system also includes a signal generator coupled to a first portion of the PV system, and a signal detector coupled to a second portion of the PV system, the signal detector configured to detect secondary signals generated at a loose connection of an electrical joint in the PV system, wherein the secondary signals result from a signal generated by the signal generator.

Method and apparatus for detecting a loose electrical connection in photovoltaic system

An electrical joint monitoring device including a mounting assembly and a wireless transponder unit. The mounting assembly includes a first conductive contact structured to electrically connect to a first conductive member of an electrical joint and a second conductive contact structured to electrically connect to a second conductive member of the electrical joint. The wireless transponder unit includes a control unit electrically connected to the first and second conductive contacts and an antenna electrically connected to the control unit. The wireless transponder unit is configured to sense a voltage difference between the first and second conductive contacts, to generate information based on the voltage difference, and to output the information to a wireless reader unit via the antenna.

Electrical joint monitoring device and electrical joint monitoring system employing the same

Growing community of inventors

Pittsburgh, PA, United States of America

John Joseph Shea