using at least one homopolar quantity

Industry

CPC
H02H3/385

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Parent Industries

HELECTRICITY H02Electric power H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection integrated protection

Current Industry

H02H3/385using at least one homopolar quantity

Industries

Patents Grantslast 30 patents

Information Patent Grant
Method for operating an electric gardening and/or forestry apparatu...
- Patent number 11,128,123
- Issue date Sep 21, 2021
- Andreas Stihl AG & Co KG
- Kay-Steffen Gurr
- G01 - MEASURING TESTING
Information Patent Grant
Method and control system for fault direction detection
- Patent number 11,050,239
- Issue date Jun 29, 2021
- ABB Power Grids Switzerland AG
- Kai Liu
- G01 - MEASURING TESTING
Information Patent Grant
Method and control system for faulted phase detection
- Patent number 11,022,655
- Issue date Jun 1, 2021
- ABB Power Grids Switzerland AG
- Kai Liu
- G01 - MEASURING TESTING
Information Patent Grant
Circuit for breaking alternating current
- Patent number 10,978,864
- Issue date Apr 13, 2021
- Blixt Tech AB
- Jan Johansson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuit for breaking alternating current
- Patent number 10,978,865
- Issue date Apr 13, 2021
- Blixt Tech AB
- Jan Johansson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Active limiting circuit for intrinsically safe equipment
- Patent number 10,797,482
- Issue date Oct 6, 2020
- National-Oilwell Varco, L.P.
- Matthew David Becker
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and device for detecting a ground-fault direction in an elec...
- Patent number 10,281,514
- Issue date May 7, 2019
- NSE AG
- Andreas Aebersold
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fault detection and direction determination
- Patent number 10,247,767
- Issue date Apr 2, 2019
- S&C Electric Company
- Michael Ennis
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for differential protection of an electric con...
- Patent number 9,425,609
- Issue date Aug 23, 2016
- ABB Technology AG
- Ari Wahlroos
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Asset condition monitoring in an electric motor
- Patent number 8,981,697
- Issue date Mar 17, 2015
- Schweitzer Engineering Laboratories, Inc.
- Mark L. Zeller
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and arrangement for generating an error signal
- Patent number 8,462,004
- Issue date Jun 11, 2013
- Siemens Aktiengesellschaft
- Andreas Jurisch
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus and method for determining a faulted phase of a three-pha...
- Patent number 7,345,488
- Issue date Mar 18, 2008
- Schweitzer Engineering Laboratories, Inc.
- Normann Fischer
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fault location using measurements of current and voltage from one e...
- Patent number 7,298,149
- Issue date Nov 20, 2007
- ABB AB
- Murari Mohan Saha
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Automated calibration of I/O over a multi-variable eye window
- Patent number 7,296,104
- Issue date Nov 13, 2007
- Sun Microsystems, Inc.
- Brian L. Smith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Directional ground relay system
- Patent number 7,106,565
- Issue date Sep 12, 2006
- Kabushiki Kaisha Toshiba
- Takahiro Kase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Digital directional relay
- Patent number 6,989,977
- Issue date Jan 24, 2006
- Kabushiki Kaisha Toshiba
- Takahiro Kase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Automated calibration of I/O over a multi-variable eye window
- Patent number 6,944,692
- Issue date Sep 13, 2005
- Sun Microsystems, Inc.
- Brian L. Smith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Protection of electrical power lines
- Patent number 6,914,762
- Issue date Jul 5, 2005
- Alstom
- Zhiqian Bo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Crossover fault classification for power lines with parallel circuits
- Patent number 6,738,719
- Issue date May 18, 2004
- ABB Power Automation Ltd.
- James D. Stoupis
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Network protector relay and method of controlling a circuit breaker...
- Patent number 6,671,151
- Issue date Dec 30, 2003
- Eaton Corporation
- David Robert Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fault protection apparatus
- Patent number 6,373,670
- Issue date Apr 16, 2002
- Alstom UK Limited
- Zhiqian Bo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Process for detecting a ground fault in an electric power transmiss...
- Patent number 5,946,174
- Issue date Aug 31, 1999
- Siemens Aktiengesellschaft
- Steffen Kaiser
- G01 - MEASURING TESTING
Information Patent Grant
Loss of potential determination for use in protective relays for el...
- Patent number 5,883,578
- Issue date Mar 16, 1999
- Schweitzer Engineering Laboratories, Inc.
- Jeffrey B. Roberts
- G01 - MEASURING TESTING
Information Patent Grant
Sequence based network protector relay with forward overcurrent pro...
- Patent number 5,822,165
- Issue date Oct 13, 1998
- Eaton Corporation
- Steven Alan Moran
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Process for producing time dependent waveforms of positive and nega...
- Patent number 5,764,044
- Issue date Jun 9, 1998
- ABB Power T&D Company, Inc.
- Fernando Calero
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for comparing two waveforms in real time
- Patent number 5,659,242
- Issue date Aug 19, 1997
- ABB Power T&D Company Inc.
- Fernando Calero
- G01 - MEASURING TESTING
Information Patent Grant
Process and apparatus for comparing in real time phase differences...
- Patent number 5,576,618
- Issue date Nov 19, 1996
- ABB Power T&D Company, Inc.
- Fernando Calero
- G01 - MEASURING TESTING
Information Patent Grant
Ground fault monitoring device for an electrical power distribution...
- Patent number 5,402,071
- Issue date Mar 28, 1995
- Gerin; Merlin
- Patrick Bastard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fault current filter
- Patent number 5,399,974
- Issue date Mar 21, 1995
- Asea Brown Boveri AB
- Leif Eriksson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Phase selection for ground fault
- Patent number 5,390,067
- Issue date Feb 14, 1995
- ASEA Brown Boveri AB
- Leif Eriksson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Asset Condition Monitoring in an Electric Motor
- Publication number 20130088799
- Publication date Apr 11, 2013
- Schweitzer Engineering Laboratories, Inc.
- Mark L. Zeller
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHOD AND APPARATUS FOR DIFFERENTIAL PROTECTION OF AN ELECTRIC CON...
- Publication number 20130035882
- Publication date Feb 7, 2013
- ABB TECHNOLOGY AG
- Ari WAHLROOS
- G01 - MEASURING TESTING
Information Patent Application
METHOD AND ARRANGEMENT FOR GENERATING AN ERROR SIGNAL
- Publication number 20110109465
- Publication date May 12, 2011
- Siemens Aktiengesellschaft
- Andreas Jurisch
- G01 - MEASURING TESTING
Information Patent Application
METHOD AND SYSTEM FOR PROTECTING AN ELECTRICAL POWER TRANSMISSION N...
- Publication number 20100324844
- Publication date Dec 23, 2010
- Jose R. Marti
- G01 - MEASURING TESTING
Information Patent Application
Method of Generating Fault Indication in Feeder Remote Terminal Uni...
- Publication number 20080211511
- Publication date Sep 4, 2008
- MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION FOUNDATION
- Myeon Song Choi
- G01 - MEASURING TESTING
Information Patent Application
Apparatus and method for determining a faulted phase of a three-pha...
- Publication number 20070085549
- Publication date Apr 19, 2007
- Schweitzer Engineering Laboratories Inc.
- Normann Fischer
- G01 - MEASURING TESTING
Information Patent Application
Fault location using measurements of current and voltage from one e...
- Publication number 20060097728
- Publication date May 11, 2006
- ABB AB
- Murari Mohan Saha
- G01 - MEASURING TESTING
Information Patent Application
Automated calibration of I/O over a multi-variable eye window
- Publication number 20060009931
- Publication date Jan 12, 2006
- Sun Microsystems, Inc.
- Brian L. Smith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Directional ground relay system
- Publication number 20040057178
- Publication date Mar 25, 2004
- Kabushiki Kaisha Toshiba
- Takahiro Kase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Digital directional relay
- Publication number 20030142451
- Publication date Jul 31, 2003
- Takahiro Kase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Protection of electrical power lines
- Publication number 20030142450
- Publication date Jul 31, 2003
- Zhiqian Bo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Network protector relay and method of controlling a circuit breaker...
- Publication number 20030063421
- Publication date Apr 3, 2003
- David Robert Smith
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Crossover fault classification for power lines with parallel circuits
- Publication number 20030055585
- Publication date Mar 20, 2003
- James D. Stoupis
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Automated calibration of I/O over a multi-variable eye window
- Publication number 20030051086
- Publication date Mar 13, 2003
- Brian L. Smith
- G06 - COMPUTING CALCULATING COUNTING

using at least one homopolar quantity

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method for operating an electric gardening and/or forestry apparatu...

Method and control system for fault direction detection

Method and control system for faulted phase detection

Circuit for breaking alternating current

Circuit for breaking alternating current

Active limiting circuit for intrinsically safe equipment

Method and device for detecting a ground-fault direction in an elec...

Fault detection and direction determination

Method and apparatus for differential protection of an electric con...

Asset condition monitoring in an electric motor

Method and arrangement for generating an error signal

Apparatus and method for determining a faulted phase of a three-pha...

Fault location using measurements of current and voltage from one e...

Automated calibration of I/O over a multi-variable eye window

Directional ground relay system

Digital directional relay

Automated calibration of I/O over a multi-variable eye window

Protection of electrical power lines

Crossover fault classification for power lines with parallel circuits

Network protector relay and method of controlling a circuit breaker...

Fault protection apparatus

Process for detecting a ground fault in an electric power transmiss...

Loss of potential determination for use in protective relays for el...

Sequence based network protector relay with forward overcurrent pro...

Process for producing time dependent waveforms of positive and nega...

Apparatus for comparing two waveforms in real time

Process and apparatus for comparing in real time phase differences...

Ground fault monitoring device for an electrical power distribution...

Fault current filter

Phase selection for ground fault

Patents Applicationslast 30 patents

Asset Condition Monitoring in an Electric Motor

METHOD AND APPARATUS FOR DIFFERENTIAL PROTECTION OF AN ELECTRIC CON...

METHOD AND ARRANGEMENT FOR GENERATING AN ERROR SIGNAL

METHOD AND SYSTEM FOR PROTECTING AN ELECTRICAL POWER TRANSMISSION N...

Method of Generating Fault Indication in Feeder Remote Terminal Uni...

Apparatus and method for determining a faulted phase of a three-pha...

Fault location using measurements of current and voltage from one e...

Automated calibration of I/O over a multi-variable eye window

Directional ground relay system

Digital directional relay

Protection of electrical power lines

Network protector relay and method of controlling a circuit breaker...

Crossover fault classification for power lines with parallel circuits

Automated calibration of I/O over a multi-variable eye window