ES2435733B2 - Sistemas, procedimientos y dispositivo electrónico inteligente para protección de un generador de fallo de conexión a tierra - Google Patents

Sistemas, procedimientos y dispositivo electrónico inteligente para protección de un generador de fallo de conexión a tierra Download PDF

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Publication number
ES2435733B2
ES2435733B2 ES201290026A ES201290026A ES2435733B2 ES 2435733 B2 ES2435733 B2 ES 2435733B2 ES 201290026 A ES201290026 A ES 201290026A ES 201290026 A ES201290026 A ES 201290026A ES 2435733 B2 ES2435733 B2 ES 2435733B2
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ES
Spain
Prior art keywords
winding
ground
injection
signal
procedures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
ES201290026A
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English (en)
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ES2435733R1 (es
ES2435733A9 (es
ES2435733A2 (es
Inventor
O. III SCHWEITZER Edmund
Veselin Skendzic
Gabriel Benmouyal
A. HALL Bruce
Rogerio Scharlach
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Schweitzer Engineering Laboratories Inc
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Schweitzer Engineering Laboratories Inc
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Publication date
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Publication of ES2435733A2 publication Critical patent/ES2435733A2/es
Publication of ES2435733R1 publication Critical patent/ES2435733R1/es
Publication of ES2435733A9 publication Critical patent/ES2435733A9/es
Application granted granted Critical
Publication of ES2435733B2 publication Critical patent/ES2435733B2/es
Expired - Fee Related legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • H02H3/17—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Control Of Eletrric Generators (AREA)
  • Protection Of Generators And Motors (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

Se divulga un sistema de detección de fallos de bobinado a tierra que incluye una fuente de señales de inyección en comunicación eléctrica con un bobinado de un generador de energía eléctrica por medio de un transformador de inyección. El bobinado puede ser acoplado a tierra por medio de una vía de bobinado a tierra y la fuente de generación de señales puede generar una señal de inyección capaz de ser inyectada en el bobinado usando el transformador de inyección. El sistema divulgado puede incluir además un módulo de protección en comunicación con la fuente de señales de inyección y el generador de energía eléctrica configurado para recibir la señal de inyección y una señal relacionada con la corriente a través de la vía de bobinado a tierra, y para determinar la ocurrencia de una condición de fallo de bobinado a tierra basándose al menos en parte en la señal de inyección y en la señal relacionada con la corriente a través de la vía de bobinado a tierra.

Description

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Claims (1)

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ES201290026A 2009-10-13 2010-10-13 Sistemas, procedimientos y dispositivo electrónico inteligente para protección de un generador de fallo de conexión a tierra Expired - Fee Related ES2435733B2 (es)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US25114409P 2009-10-13 2009-10-13
US61/251,144 2009-10-13
US12/903,104 US8405940B2 (en) 2009-10-13 2010-10-12 Systems and methods for generator ground fault protection
US12/903,104 2010-10-12
PCT/US2010/052452 WO2011047010A1 (en) 2009-10-13 2010-10-13 Systems and methods for generator ground fault protection

Publications (4)

Publication Number Publication Date
ES2435733A2 ES2435733A2 (es) 2013-12-23
ES2435733R1 ES2435733R1 (es) 2014-01-07
ES2435733A9 ES2435733A9 (es) 2014-01-07
ES2435733B2 true ES2435733B2 (es) 2014-08-22

Family

ID=43854669

Family Applications (1)

Application Number Title Priority Date Filing Date
ES201290026A Expired - Fee Related ES2435733B2 (es) 2009-10-13 2010-10-13 Sistemas, procedimientos y dispositivo electrónico inteligente para protección de un generador de fallo de conexión a tierra

Country Status (8)

Country Link
US (1) US8405940B2 (es)
AU (1) AU2010306876B2 (es)
BR (1) BR112012008681A2 (es)
CA (1) CA2777379C (es)
ES (1) ES2435733B2 (es)
MX (1) MX2012004040A (es)
WO (1) WO2011047010A1 (es)
ZA (1) ZA201202110B (es)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8526143B2 (en) * 2009-05-14 2013-09-03 Siemens Industry, Inc. Methods and appraratus for ground fault circuit interrupt detection using a single transformer
RU2544267C1 (ru) * 2011-03-03 2015-03-20 Абб Рисерч Лтд Способ адаптации обнаружения короткого замыкания на землю
JP2012189403A (ja) * 2011-03-10 2012-10-04 Hitachi Mitsubishi Hydro Corp 回転電機
EP2530801A1 (en) * 2011-05-31 2012-12-05 ABB Schweiz AG Ground fault protection
US8930166B1 (en) * 2011-12-06 2015-01-06 Lockheed Martin Corporation Method and apparatus for efficient extraction of information from signals
FR2986618B1 (fr) 2012-02-08 2014-09-05 Renault Sa Systeme embarque securise de charge de la batterie d'un vehicule automobile a partir d'un reseau d'alimentation
US10310017B2 (en) 2012-09-13 2019-06-04 General Electric Company Detection of generator stator inter-circuit faults
US9319101B2 (en) * 2012-09-28 2016-04-19 Siemens Industry, Inc. System and method for ground fault detection in a transformer isolated communication channel of a network device
DE102012218107B4 (de) * 2012-10-04 2023-04-27 Bender Gmbh & Co. Kg Verfahren zur Überwachung und Messung eines Isolationswiderstands mit einem störresistenten Messsignal und zugehöriger Signalgenerator
US9500710B2 (en) * 2012-10-15 2016-11-22 Siemens Energy, Inc. Generator neutral ground monitoring system and method
EP2772770B1 (en) * 2013-02-28 2015-09-23 Alstom Technology Ltd Rotor earth fault protection for an electrical variable speed doubly fed induction machine
CN103364665B (zh) * 2013-07-19 2015-11-18 国家电网公司 寻找电网侧故障发电机定子接地保护误动原因的检测方法
CN104917148B (zh) * 2014-03-12 2018-03-30 南京南瑞继保电气有限公司 一种发电机注入式定子接地保护方法和保护装置
US10288688B2 (en) 2014-07-24 2019-05-14 Schweitzer Engineering Laboratories, Inc. Systems and methods for monitoring and protecting an electric power generator
KR101842921B1 (ko) * 2014-10-15 2018-03-29 엘에스산전 주식회사 단상 태양광 인버터 및 그의 제어 장치
US9826338B2 (en) 2014-11-18 2017-11-21 Prophecy Sensorlytics Llc IoT-enabled process control and predective maintenance using machine wearables
CN104377669B (zh) * 2014-11-21 2017-07-25 三峡大学 一种基于横向测量比较阻抗原理的广域保护算法
US9660438B2 (en) 2014-11-26 2017-05-23 Schweitzer Engineering Laboratories, Inc. Secure and dependable differential protection for electric power generators
US9496707B2 (en) 2014-12-22 2016-11-15 Schweitzer Engineering Laboratories, Inc. Generator protection element
US10599982B2 (en) 2015-02-23 2020-03-24 Machinesense, Llc Internet of things based determination of machine reliability and automated maintainenace, repair and operation (MRO) logs
US10481195B2 (en) 2015-12-02 2019-11-19 Machinesense, Llc Distributed IoT based sensor analytics for power line diagnosis
US10638295B2 (en) 2015-01-17 2020-04-28 Machinesense, Llc System and method for turbomachinery preventive maintenance and root cause failure determination
US10613046B2 (en) 2015-02-23 2020-04-07 Machinesense, Llc Method for accurately measuring real-time dew-point value and total moisture content of a material
US20160245686A1 (en) 2015-02-23 2016-08-25 Biplab Pal Fault detection in rotor driven equipment using rotational invariant transform of sub-sampled 3-axis vibrational data
US10648735B2 (en) 2015-08-23 2020-05-12 Machinesense, Llc Machine learning based predictive maintenance of a dryer
US20160245279A1 (en) 2015-02-23 2016-08-25 Biplab Pal Real time machine learning based predictive and preventive maintenance of vacuum pump
US20160313216A1 (en) 2015-04-25 2016-10-27 Prophecy Sensors, Llc Fuel gauge visualization of iot based predictive maintenance system using multi-classification based machine learning
US9823289B2 (en) 2015-06-01 2017-11-21 Prophecy Sensorlytics Llc Automated digital earth fault system
CN105974173B (zh) * 2015-09-15 2019-03-26 长沙理工大学 一种单相逆变型接地装置的电流检测方法
US10088516B2 (en) * 2016-02-10 2018-10-02 General Electric Company Systems and methods for detecting turn-to-turn faults in windings
US10931097B2 (en) 2017-09-25 2021-02-23 Schweitzer Engineering Laboratories, Inc. Generator stator ground protection using third harmonic
US10333291B2 (en) 2017-09-25 2019-06-25 Schweitzer Engineering Laboratories, Inc. Multiple generator ground fault detection
US10921792B2 (en) 2017-12-21 2021-02-16 Machinesense Llc Edge cloud-based resin material drying system and method
US11539200B2 (en) * 2018-03-16 2022-12-27 Littelfuse, Inc. Monitor device, ground fault protection circuit and techniques
US11108222B2 (en) 2018-03-16 2021-08-31 Littelfuse, Inc. Monitor device, ground fault protection circuit and techniques
US10797632B2 (en) 2018-08-21 2020-10-06 Schweitzer Engineering Laboratories, Inc. Sensitive directional element for generator protection
EP3633810B1 (en) * 2018-10-01 2021-09-29 ABB Power Grids Switzerland AG Arrangement for injection-based ground fault protection handling
US11016135B2 (en) 2018-11-28 2021-05-25 Cummins Power Generation Ip, Inc. Systems and methods for ground fault detection in power systems using communication network
CN110333437B (zh) * 2019-07-08 2023-07-18 中国电力科学研究院有限公司 一种注入式定子接地保护装置的检测系统及方法
US11316455B2 (en) 2019-08-28 2022-04-26 Schweitzer Engineering Laboratories, Inc. Generator rotor turn-to-turn fault detection using fractional harmonics
US10819261B1 (en) 2019-10-25 2020-10-27 Schweitzer Engineering Laboratories, Inc. Security improvements for electric power generator protection
CN110854810B (zh) * 2019-11-20 2022-01-25 国网江苏省电力有限公司检修分公司 一种大型同步调相机转子一点接地保护方法
CN111505440B (zh) * 2020-04-27 2022-09-20 云南拓普特种电源科技有限公司 一种基于d类功放的接地故障检测以及保护系统及方法
US11368014B2 (en) * 2020-05-18 2022-06-21 Littelfuse, Inc. Ground fault protection circuit and techniques
US11469588B2 (en) 2020-08-31 2022-10-11 Schweitzer Engineering Laboratories, Inc. Electric power system differential protection with DC compensation
CN112234579B (zh) * 2020-10-28 2022-07-01 天生桥二级水力发电有限公司天生桥水力发电总厂 大型水轮发电机的注入式定子接地保护方法及系统
US11631972B2 (en) 2020-12-16 2023-04-18 Schweitzer Engineering Laboratories, Inc. Accurate modeling of equipment overexcitation damage curves
CN112909904B (zh) * 2021-03-03 2022-05-24 广东电网有限责任公司 电阻接地系统及其控制方法
US11946966B1 (en) 2023-02-20 2024-04-02 Schweitzer Engineering Laboratories, Inc. Selective stator ground fault protection using positive-sequence voltage reference

Family Cites Families (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881319A (en) * 1957-06-07 1959-04-07 Arthur R Sills Automatic frequency control system
US3727123A (en) * 1972-02-22 1973-04-10 Electric Machinery Mfg Co Brushless generator field ground detection system
DE2430798C3 (de) * 1974-06-24 1979-03-29 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anordnung zur Erfassung von Erdschlüssen im Läuferkreis einer schleifringlos über umlaufende Gleichrichter erregten Synchronmaschine
US3973171A (en) * 1975-05-19 1976-08-03 General Electric Company Ground fault circuit interrupting device with grounded neutral detection
US4001646A (en) * 1975-06-16 1977-01-04 General Electric Company Ground fault circuit interrupter utilizing a single transformer
JPS5222422A (en) 1975-08-14 1977-02-19 Toshiba Corp Deflection yoke adjusting device
DE2542811C2 (de) * 1975-09-25 1979-08-23 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zur Messung des Erdwiderstandes einer erdfreien Starkstromschaltung
US4029951A (en) * 1975-10-21 1977-06-14 Westinghouse Electric Corporation Turbine power plant automatic control system
JPS53120117A (en) * 1977-03-30 1978-10-20 Hitachi Ltd Excitation control system for generator
US4148087A (en) * 1977-04-20 1979-04-03 Phadke Arun G Distance relay for electric power transmission lines
SE409511B (sv) 1977-06-15 1979-08-20 Svein Erik Spenningskomparator
US4159499A (en) * 1977-06-20 1979-06-26 Bereskin Alexander B Ground fault detection and protection circuit
US4161011A (en) * 1978-02-21 1979-07-10 General Electric Company Ground distance relay employing phase comparator measurement
US4206398A (en) * 1978-04-26 1980-06-03 Esb Incorporated Method of and apparatus for detecting ground faults in isolated power supply systems
US4321643A (en) * 1980-04-04 1982-03-23 Amf Incorporated Ground monitoring system
US4371832A (en) * 1980-05-27 1983-02-01 Wilson Gerald L DC Ground fault detector wherein fault is sensed by noting imbalance of magnetic flux in a magnetic core
JPS5826524A (ja) * 1981-08-07 1983-02-17 三菱電機株式会社 交流発電機の接地検出装置
JPS5826522A (ja) * 1981-08-07 1983-02-17 三菱電機株式会社 交流発電機の接地検出装置
US4511811A (en) * 1982-02-08 1985-04-16 Seeq Technology, Inc. Charge pump for providing programming voltage to the word lines in a semiconductor memory array
US4558309A (en) * 1983-06-27 1985-12-10 The Simco Company, Inc. Ground tether continuity monitor
US4667263A (en) * 1985-04-22 1987-05-19 General Electric Company Ground fault module for ground fault circuit breaker
US4820991A (en) * 1985-12-23 1989-04-11 Progressive Electronics, Inc. Apparatus for determination of the location of a fault in communications wires
US4851758A (en) * 1987-03-09 1989-07-25 Sawafuji Electric Co., Ltd. Brushless generator
US4825327A (en) * 1987-11-12 1989-04-25 General Electric Company Negative and zero sequence directional overcurrent unit for AC power transmission line protection
JP2670323B2 (ja) 1987-11-26 1997-10-29 三信工業株式会社 船舶推進機のシフト装置
US4939506A (en) * 1988-01-26 1990-07-03 Dresser-Rand Company Grounding brush monitor
US5057962A (en) * 1990-01-22 1991-10-15 General Electric Company Microprocessor-based protective relay system
US5581470A (en) * 1991-07-05 1996-12-03 The Detroit Edison Company Apparatus for visually graphically displaying the operating point of a generator in reference to its capability curve including digital readouts of watts, vars and hydrogen pressure
US5264778A (en) * 1991-12-31 1993-11-23 Westinghouse Electric Corp. Apparatus protecting a synchronous machine from under excitation
JPH05318853A (ja) 1992-05-26 1993-12-03 Sony Corp カラーサーマルプリンタの用紙搬送装置
DE4235963C1 (de) * 1992-10-26 1994-03-31 Prakla Seismos Gmbh Verfahren zur Überwachung eines Gebietes
US5363047A (en) * 1992-10-30 1994-11-08 Southern California Edison Company Portable ground fault detector
US5519300A (en) * 1993-06-29 1996-05-21 Liberty Technologies, Inc. Method and apparatus for analysis of polyphase electrical motor systems
CA2106357A1 (en) * 1993-07-07 1995-01-08 Murty V. V. S. Yalla Method for implementing selectable protective relay functions
DE4329381A1 (de) * 1993-09-01 1995-03-02 Abb Management Ag Verfahren zur Erfassung von Erdfehlern auf den Leitern einer elektrischen Maschine
DE4329382A1 (de) * 1993-09-01 1995-03-02 Abb Management Ag Verfahren und Vorrichtung zur Erfassung von Erdfehlern auf den Leitern einer elektrischen Maschine
JP3468817B2 (ja) * 1994-02-25 2003-11-17 株式会社東芝 界磁地絡検出器
US5633550A (en) * 1995-01-23 1997-05-27 Westinghouse Electric Corporation Ground detector brush
JPH09309737A (ja) 1996-05-23 1997-12-02 Shirai Tekkosho:Kk 板ガラスの切断装置
US5805395A (en) * 1996-12-13 1998-09-08 Abb Power T&D Company Inc. Half-cycle summation V/Hz relay for generator and transformer over-excitation protection
JPH11140927A (ja) 1997-11-07 1999-05-25 Garage Kyoei:Kk シンクセット
BR9815420A (pt) * 1997-11-28 2001-07-17 Abb Ab Método e dispositivo para controlar o fluxo magnético com um enrolamento auxiliar em uma máquina rotativa de alta voltagem de corrente alternada
US5933306A (en) * 1998-01-14 1999-08-03 General Electric Company Circuit breaker with ground fault detection module
US5982595A (en) * 1998-06-05 1999-11-09 General Electric Company Redundant communications in a protective relay
US6169489B1 (en) * 1998-10-07 2001-01-02 General Electric Company Motor winding contamination detector and detection
US6426632B1 (en) * 1999-03-29 2002-07-30 George A. Spencer Method and apparatus for testing an AFCI/GFCI circuit breaker
US6121886A (en) * 1999-05-18 2000-09-19 General Electric Company Method for predicting fault conditions in an intelligent electronic device
US6204642B1 (en) * 1999-08-06 2001-03-20 General Electric Company Method and apparatus for modifying limit and protection software in a synchronous generator exciter to match the capability of the turbine-generator
US6262550B1 (en) * 1999-12-17 2001-07-17 General Electric Company Electrical motor monitoring system and method
US6396284B1 (en) * 2000-06-09 2002-05-28 Ramcom Systems, Inc. Ground resistance monitor
US6815932B2 (en) * 2000-10-12 2004-11-09 Capstone Turbine Corporation Detection of islanded behavior and anti-islanding protection of a generator in grid-connected mode
BR0115197A (pt) 2000-11-08 2004-06-15 Gen Electric Aparelho e método para detectar e calcular resistência de falha de terra
US6633802B2 (en) * 2001-03-06 2003-10-14 Sikorsky Aircraft Corporation Power management under limited power conditions
US6459269B1 (en) * 2001-04-02 2002-10-01 Msx, Inc. Capacitance rejecting ground fault protecting apparatus and method
ES2727302T3 (es) * 2001-07-27 2019-10-15 General Electric Technology Gmbh Dispositivo de protección y vigilancia para un generador y aplicación de un dispositivo de protección y vigilancia de este tipo
US6492801B1 (en) * 2001-08-21 2002-12-10 Southern Company Services, Inc. Method, apparatus, and system for real time reactive power output monitoring and predicting
FR2831342B1 (fr) * 2001-10-22 2003-12-19 Alstom Systeme de protection d'un transformateur de distribution triphase a isolation dans un dielectrique liquide comportant un interrupteur sectionneur de phase
US6794883B2 (en) * 2002-03-19 2004-09-21 Emerson Electric Co. Method and system for monitoring winding insulation resistance
US7529069B1 (en) * 2002-08-08 2009-05-05 Weems Ii Warren A Apparatus and method for ground fault detection and location in electrical systems
US6924628B2 (en) * 2003-02-24 2005-08-02 Siemens Westinghouse Power Corporation Method and system for operating a generator using a dynamic capability curve
JP4056923B2 (ja) * 2003-04-28 2008-03-05 本田技研工業株式会社 地絡検知装置
US6975946B2 (en) * 2003-06-23 2005-12-13 Saudi Arabian Oil Company Reactive power optimization with adaptive excitation control
US7233843B2 (en) * 2003-08-08 2007-06-19 Electric Power Group, Llc Real-time performance monitoring and management system
US6924565B2 (en) * 2003-08-18 2005-08-02 General Electric Company Continuous reactive power support for wind turbine generators
JP4038484B2 (ja) * 2004-01-13 2008-01-23 三菱電機株式会社 同期フェーザ測定装置
CA2476030A1 (en) * 2004-06-09 2005-12-09 Wilsun Xu A power signaling based technique for detecting islanding conditions in electric power distribution systems
US7180300B2 (en) * 2004-12-10 2007-02-20 General Electric Company System and method of locating ground fault in electrical power distribution system
US7253634B1 (en) * 2006-03-31 2007-08-07 General Electric Company Generator protection methods and systems self-tuning to a plurality of characteristics of a machine
EP1890369B1 (en) * 2006-08-18 2013-10-02 ABB Research Ltd Ground fault detection
US7498818B2 (en) * 2006-08-25 2009-03-03 Schweitzer Engineering Laboratories, Inc. Apparatus and method for detecting a brush liftoff in a synchronous generator rotor circuit
US7710693B2 (en) * 2006-09-22 2010-05-04 Schweitzer Engineering Laboratories, Inc. Apparatus and method for providing protection for a synchronous electrical generator in a power system
US7532010B2 (en) * 2006-09-25 2009-05-12 Delphi Technologies, Inc. Sensing circuit and method for diagnosing open and short circuit conditions of a sensor
EP1936393A1 (en) * 2006-12-22 2008-06-25 Abb Research Ltd. Impedance measurement arrangement and method
US20090219030A1 (en) * 2008-02-29 2009-09-03 General Electric Company Methods and Systems for Detecting Rotor Field Ground Faults In Rotating Machinery

Also Published As

Publication number Publication date
CA2777379A1 (en) 2011-04-21
ES2435733R1 (es) 2014-01-07
ES2435733A9 (es) 2014-01-07
ZA201202110B (en) 2013-05-29
AU2010306876B2 (en) 2015-02-05
MX2012004040A (es) 2012-05-22
CA2777379C (en) 2015-06-16
BR112012008681A2 (pt) 2016-04-19
AU2010306876A1 (en) 2012-04-12
US20110085272A1 (en) 2011-04-14
US8405940B2 (en) 2013-03-26
WO2011047010A1 (en) 2011-04-21
ES2435733A2 (es) 2013-12-23

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