NZ563880A - Current sensor for measuring an electrical current in a circuit having a plurality of electrical conductors - Google Patents

Current sensor for measuring an electrical current in a circuit having a plurality of electrical conductors

Info

Publication number
NZ563880A
NZ563880A NZ563880A NZ56388006A NZ563880A NZ 563880 A NZ563880 A NZ 563880A NZ 563880 A NZ563880 A NZ 563880A NZ 56388006 A NZ56388006 A NZ 56388006A NZ 563880 A NZ563880 A NZ 563880A
Authority
NZ
New Zealand
Prior art keywords
electrical
current
sensor
magnetic flux
current sensor
Prior art date
Application number
NZ563880A
Other languages
English (en)
Inventor
Michel Montreuil
Original Assignee
Corp Nuvolt Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Corp Nuvolt Inc filed Critical Corp Nuvolt Inc
Publication of NZ563880A publication Critical patent/NZ563880A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/207—Constructional details independent of the type of device used
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/16—Toroidal transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase AC
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/38—Instruments transformers for polyphase AC

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
NZ563880A 2005-05-12 2006-05-10 Current sensor for measuring an electrical current in a circuit having a plurality of electrical conductors NZ563880A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67999705P 2005-05-12 2005-05-12
PCT/CA2006/000760 WO2006119634A1 (en) 2005-05-12 2006-05-10 Current sensor

Publications (1)

Publication Number Publication Date
NZ563880A true NZ563880A (en) 2010-12-24

Family

ID=37396154

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ563880A NZ563880A (en) 2005-05-12 2006-05-10 Current sensor for measuring an electrical current in a circuit having a plurality of electrical conductors

Country Status (9)

Country Link
US (2) US7477058B2 (enExample)
EP (1) EP1886150A4 (enExample)
JP (3) JP5250413B2 (enExample)
AU (1) AU2006246275B2 (enExample)
CA (1) CA2608167C (enExample)
IL (1) IL187117A (enExample)
NO (1) NO20076414L (enExample)
NZ (1) NZ563880A (enExample)
WO (1) WO2006119634A1 (enExample)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4360998B2 (ja) * 2004-10-01 2009-11-11 Ｔｄｋ株式会社 電流センサ
US7298132B2 (en) * 2005-04-13 2007-11-20 Crane Co. Current sensor
WO2006119634A1 (en) * 2005-05-12 2006-11-16 Corporation Nuvolt Inc. Current sensor
EP1752776A1 (fr) * 2005-08-12 2007-02-14 Liaisons Electroniques-Mecaniques Lem S.A. Capteur de courant triphasé
US7652871B2 (en) * 2006-01-04 2010-01-26 General Electric Company Methods and systems for electrical power sub-metering
JP4916807B2 (ja) * 2006-01-30 2012-04-18 株式会社ダイヘン 電圧検出用プリント基板及びそれを用いた電圧検出器
JP4917183B2 (ja) * 2006-03-31 2012-04-18 株式会社ダイヘン 電流・電圧検出用プリント基板及びそれを用いた電流・電圧検出器
JP4916821B2 (ja) * 2006-03-31 2012-04-18 株式会社ダイヘン 電圧検出用プリント基板及びそれを用いた電圧検出器
EP1965217B1 (en) * 2007-03-02 2012-08-29 Liaisons Electroniques-Mecaniques Lem S.A. High bandwidth open-loop current sensor
GB0723621D0 (en) * 2007-12-04 2008-01-09 Ecoauditors Ltd Measuring alternating current flowing through an electricity supply distribution unit
NZ589157A (en) 2008-04-14 2013-06-28 Corp Nuvolt Inc Detecting electrical anomalies by receiving sensor data with received anomaly detection rules
US7915885B2 (en) * 2008-08-04 2011-03-29 Infineon Technologies Ag Sensor system and method
FR2936062B1 (fr) * 2008-09-12 2010-10-01 Electricfil Automotive Capteur de courant en boucle ouverte a large gamme
KR101009595B1 (ko) * 2009-03-16 2011-01-20 윌전기공업(주) 비접지 직류전원계통의 접지누설전류 측정 장치 및 그 방법
US9297864B2 (en) 2010-05-19 2016-03-29 Power Distribution, Inc. Current metering and abnormal event monitoring system
WO2012003426A2 (en) * 2010-07-02 2012-01-05 Reynolds Brett S Apparatus for calibrated non-invasive measurement of electrical current
US9121885B2 (en) * 2010-08-16 2015-09-01 Infineon Technologies Ag Sensor package and method of manufacturing thereof
WO2012112924A1 (en) * 2011-02-17 2012-08-23 Outsmart Power Systems, Llc Energy monitoring device
JP5702862B2 (ja) * 2011-08-31 2015-04-15 本田技研工業株式会社 電流検出回路モジュール
US8595520B2 (en) * 2011-10-12 2013-11-26 Qualcomm Incorporated System and method for determining thermal management policy from leakage current measurement
JP6018390B2 (ja) * 2012-03-21 2016-11-02 日立オートモティブシステムズ株式会社 電動ポンプの制御装置
GB201207297D0 (en) * 2012-04-26 2012-06-06 Senzagen Ab Analytical methods and arrays for use in the same
US20150212139A1 (en) * 2014-01-24 2015-07-30 GF Technologies, LLC Sensitive and selective ground fault detection
KR101757725B1 (ko) 2016-03-10 2017-07-13 주식회사 나래아이오티연구소 홀 소자를 이용한 사고 전류 감지 장치 및 이를 적용한 스마트폰용 아크 화재 감지 시스템
JP2018004443A (ja) * 2016-07-01 2018-01-11 アルプス電気株式会社 電流センサー
DE102017212434A1 (de) * 2017-07-20 2019-01-24 Audi Ag Elektronikeinrichtung mit wenigstens einer zu kühlenden Komponente
US10840689B2 (en) 2017-10-06 2020-11-17 Power Distribution, Inc. Universal tap-off box with a latch mechanism
FR3072462B1 (fr) * 2017-10-16 2020-05-22 Schneider Electric Industries Sas Dispositif de mesure de courant, procede de fabrication, module de protection et disjoncteur differentiel utilisant un tel dispositif de mesure de courant
JP7123584B2 (ja) * 2018-03-14 2022-08-23 富士電機株式会社 三相交流ケーブルの異常電流検知装置
US11982693B2 (en) * 2018-10-11 2024-05-14 The University Of North Carolina At Charlotte Systems and methods to detect and measure the current mismatch among parallel semiconductor devices
CN110231539B (zh) * 2019-06-04 2021-01-19 西安交通大学 一种用于真双极直流输配电线路的单极接地故障检测系统
US11460487B2 (en) 2019-08-30 2022-10-04 Cnh Industrial Canada, Ltd. Operational control for agricultural agitator
EP3995838A1 (en) * 2020-11-06 2022-05-11 MAHLE International GmbH Operating state monitoring device for monitoring a connecting cable and operating state controlling method for monitoring an operating state of a conducting connecting cable
FI129906B (en) * 2021-10-26 2022-10-31 Lappeenrannan Lahden Teknillinen Yliopisto Lut Sensor system and method for measuring electric currents

Family Cites Families (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425596A (en) * 1980-09-26 1984-01-10 Tokyo Shibaura Denki Kabushiki Kaisha Electric circuit breaker
JPS5912359A (ja) * 1982-07-13 1984-01-23 San Eisha Seisakusho:Kk 電圧電流センサ−
US4546309A (en) 1982-09-13 1985-10-08 Commonwealth Edison Company Apparatus and method for locating ground faults
JPS5987677U (ja) * 1982-12-06 1984-06-13 三菱電機株式会社 電流検出器
US4558276A (en) 1983-05-13 1985-12-10 Leon J. Comeau Device and method for sensing electric current in a conductor
US4639665A (en) * 1983-08-22 1987-01-27 Borg-Warner Corporation Sensing system for measuring a parameter
FR2584195B1 (fr) 1985-06-28 1987-12-18 Chauvin Arnoux Sa Pince amperemetrique a effet hall
US4739275A (en) * 1985-09-06 1988-04-19 Southern California Edison DC ground fault detection
US4823075A (en) 1987-10-13 1989-04-18 General Electric Company Current sensor using hall-effect device with feedback
JPH0247565A (ja) * 1988-07-18 1990-02-16 A Fernandez Roosevelt 電力線及び変電所監視装置
US4893073A (en) 1989-01-30 1990-01-09 General Motors Corporation Electric circuit board current sensor
FI87117C (fi) * 1989-03-23 1992-11-25 Abb Stroemberg Kojeet Oy Anordning och foerfarande foer maetning av elstroem i stoerda foerhaollanden
JP2606365B2 (ja) * 1989-05-08 1997-04-30 日立電線株式会社 変流器または零相変流器
JPH038770U (enExample) * 1989-06-15 1991-01-28
US5495384A (en) * 1990-04-02 1996-02-27 Square D Company Apparatus and method for detecting a fault in a distributed line network
JPH04320971A (ja) * 1991-04-22 1992-11-11 Mitsubishi Electric Corp 電流検出器
US5369356A (en) 1991-08-30 1994-11-29 Siemens Energy & Automation, Inc. Distributed current and voltage sampling function for an electric power monitoring unit
US5218298A (en) * 1992-03-02 1993-06-08 Allegro Microsystems Inc. Two-terminal-hall-sensors monitoring system for providing decoded magnetic field amplitude signals and system diagnostic signals
US5280404A (en) 1992-05-15 1994-01-18 Bio-Rad Laboratories, Inc. Arc detection system
US5434509A (en) 1992-07-30 1995-07-18 Blades; Frederick K. Method and apparatus for detecting arcing in alternating-current power systems by monitoring high-frequency noise
JPH06201734A (ja) * 1992-12-28 1994-07-22 Chugoku Electric Power Co Inc:The 高圧配電線用高調波検出装置
JPH06324088A (ja) * 1993-05-14 1994-11-25 Furukawa Electric Co Ltd:The 電流の計測方法
US5416407A (en) 1993-06-11 1995-05-16 F. W. Bell, Inc. Electric current sensor employing hall effect generator
US5452223A (en) 1993-08-20 1995-09-19 Eaton Corporation Arc detection using current variation
FR2713345B1 (fr) 1993-12-03 1996-01-05 Alcatel Cable Dispositif de mesure d'énergie impulsionnelle.
JPH07280845A (ja) * 1994-04-14 1995-10-27 Yazaki Corp 電流検出装置
US5552700A (en) 1994-09-30 1996-09-03 Stanley Electric Co., Ltd. Current detecting device with a core having an integrally fixed engaging member
US5530364A (en) * 1994-12-27 1996-06-25 The University Of Connecticut Cable partial discharge location pointer
US5615075A (en) 1995-05-30 1997-03-25 General Electric Company AC/DC current sensor for a circuit breaker
US5671161A (en) 1995-12-19 1997-09-23 Honeywell Inc. Switch with diagnostic capability
US5701073A (en) 1996-02-28 1997-12-23 Tektronix, Inc. Direct current measuring apparatus and method employing flux diversion
US5726577A (en) 1996-04-17 1998-03-10 Eaton Corporation Apparatus for detecting and responding to series arcs in AC electrical systems
JP3575166B2 (ja) * 1996-05-10 2004-10-13 株式会社デンソー 電流検出装置
US5818237A (en) 1996-06-10 1998-10-06 Eaton Corporation Apparatus for envelope detection of low current arcs
AU5425198A (en) 1996-10-21 1998-05-29 Electronics Development Corporation Smart sensor module
US5825170A (en) 1997-01-24 1998-10-20 Filtre-Expert Magnetically coupled alternating stray current neutralizing method and system
US5995911A (en) * 1997-02-12 1999-11-30 Power Measurement Ltd. Digital sensor apparatus and system for protection, control, and management of electricity distribution systems
US5923162A (en) 1997-04-18 1999-07-13 Bell Technologies Inc. Non-inductive lead path hall effect electrical current sensor
US5874848A (en) 1997-07-09 1999-02-23 Bell Technologies, Inc. Electric current sensor utilizing a compensating trace configuration
DE19739682A1 (de) * 1997-09-10 1999-03-11 Bosch Gmbh Robert Sensoreinrichtung
US5923514A (en) * 1997-11-05 1999-07-13 Square D Company Electronic trip circuit breaker with CMR current sensor
US6018700A (en) 1998-02-19 2000-01-25 Edel; Thomas G. Self-powered current monitor
US6329810B1 (en) * 1998-03-18 2001-12-11 Square D Company Modular sensor array, metering device and mounting and connection base
US6434512B1 (en) 1998-04-02 2002-08-13 Reliance Electric Technologies, Llc Modular data collection and analysis system
DE69916603T2 (de) 1998-06-05 2005-04-28 Liaisons Electroniques-Mécaniques LEM S.A. Elektrischer stromsensor mit hoher bandbreite
US6545456B1 (en) * 1998-08-12 2003-04-08 Rockwell Automation Technologies, Inc. Hall effect current sensor package for sensing electrical current in an electrical conductor
US6362628B2 (en) 1998-12-21 2002-03-26 Pass & Seymour, Inc. Arc fault circuit detector device detecting pulse width modulation of arc noise
JP2000187045A (ja) * 1998-12-24 2000-07-04 Nissin Electric Co Ltd 電圧変成器
DE69920890T2 (de) * 1999-01-21 2005-02-03 Tdk Corp. Stromsensor
JP2000241466A (ja) * 1999-02-18 2000-09-08 Hitachi Ltd 分割型変流器付き小型電力量変換器
US6828770B1 (en) * 1999-04-12 2004-12-07 Chk Wireless Technologies Australia Pty Ltd. Apparatus and method for electrical measurements on conductors
US6826369B1 (en) 1999-04-23 2004-11-30 System To Asic, Inc. Intelligent sensor platform
JP2001074784A (ja) * 1999-08-03 2001-03-23 Eaton Corp 電流感知装置
US6426617B1 (en) 1999-09-28 2002-07-30 Rockwell Automation Technologies, Inc. Hall effect current sensor system packaging
US6348800B1 (en) * 1999-09-28 2002-02-19 Rockwell Automation Technologies, Inc. Multi-phase ground fault current sensor system
US6404180B1 (en) * 1999-09-28 2002-06-11 Rockwell Automation Technologies, Inc. Technique for sensing current in a conductor with reduced susceptibility to electrical noise on the conductor
US6400258B1 (en) 2000-01-19 2002-06-04 Hendry Mechanical Works Electric arc monitoring systems
US6750644B1 (en) 2000-09-06 2004-06-15 General Electric Company Magnetic field sensor and method for calibrating the same
US6654219B1 (en) 2000-12-11 2003-11-25 Pass & Seymour, Inc. Arc fault detector with diagnostic indicator
US6703842B2 (en) 2001-01-25 2004-03-09 Matsushita Electric Works, Ltd. Method for discriminating abnormal current including arc current in AC load circuit and apparatus for executing the same
JP2002303642A (ja) * 2001-04-03 2002-10-18 Stanley Electric Co Ltd 電流検出装置
US6762077B2 (en) 2001-05-11 2004-07-13 Melexis Nv Integrated sensor packages and methods of making the same
JP2003124045A (ja) * 2001-10-19 2003-04-25 Yazaki Corp 電流センサ
AU2002222820A1 (en) 2001-11-23 2003-06-10 Medit As A cluster system for remote monitoring and diagnostic support
JP2003202354A (ja) * 2002-01-07 2003-07-18 Mitsubishi Electric Corp 通電情報計測装置
US6570373B1 (en) 2002-03-07 2003-05-27 Visteon Global Technologies, Inc. Current sensor programmable through connector
US6721683B2 (en) 2002-03-08 2004-04-13 Insightek, Llc Pump motor diagnosis
US6737854B2 (en) 2002-03-26 2004-05-18 Veris Industries, Llc Electrical current monitoring system with improved current sensor configuration
US6690565B2 (en) 2002-04-09 2004-02-10 Michel Montreuil Method and apparatus for neutralizing stray current impulses
US6708126B2 (en) * 2002-05-17 2004-03-16 General Electric Company Method and system for measuring current
US6759840B2 (en) * 2002-06-11 2004-07-06 Rockwell Automation Technologies, Inc. Hall effect conductor/core method and apparatus
DE10240241A1 (de) * 2002-08-31 2004-03-11 Robert Bosch Gmbh Sromsensor mit mehreren Magnetfeldsensoren
US6781359B2 (en) * 2002-09-20 2004-08-24 Allegro Microsystems, Inc. Integrated current sensor
US6933907B2 (en) * 2003-04-02 2005-08-23 Dx Antenna Company, Limited Variable directivity antenna and variable directivity antenna system using such antennas
JP4324846B2 (ja) * 2003-06-13 2009-09-02 アイシン・エィ・ダブリュ株式会社 電動機駆動電流検出装置
SI21580A (sl) 2003-07-15 2005-02-28 Iskraemeco Integrirano vezje, predvideno za merilnik električne energije
US7709754B2 (en) 2003-08-26 2010-05-04 Allegro Microsystems, Inc. Current sensor
JP2005308635A (ja) * 2004-04-23 2005-11-04 Denso Corp 電流センサ
WO2006119634A1 (en) * 2005-05-12 2006-11-16 Corporation Nuvolt Inc. Current sensor
JP2008541691A (ja) * 2005-05-17 2008-11-20 フェデラル−モーグル コーポレイション 封入された回路基板を有するｂｌｄｃモータおよびポンプアセンブリ

Also Published As

Publication number Publication date
JP5250413B2 (ja) 2013-07-31
WO2006119634A1 (en) 2006-11-16
US7714588B2 (en) 2010-05-11
NO20076414L (no) 2007-12-12
AU2006246275B2 (en) 2010-12-23
JP2015148631A (ja) 2015-08-20
CA2608167A1 (en) 2006-11-16
US7477058B2 (en) 2009-01-13
JP2013057692A (ja) 2013-03-28
AU2006246275A1 (en) 2006-11-16
US20060255793A1 (en) 2006-11-16
IL187117A (en) 2012-08-30
IL187117A0 (en) 2008-02-09
CA2608167C (en) 2012-05-01
EP1886150A4 (en) 2012-05-09
JP2008541065A (ja) 2008-11-20
EP1886150A1 (en) 2008-02-13
US20090039868A1 (en) 2009-02-12

Similar Documents

Publication Publication Date Title
US7714588B2 (en) Current sensor with a magnetic structure for measuring an electrical current on an electrical conductor
US11137421B1 (en) Non-contact voltage sensing system
US20090287430A1 (en) System and Method for Detecting Leak Current
US20110121827A1 (en) Slotted current transducer using magnetic field point sensors
KR20130102091A (ko) 시스템의 적어도 하나의 상을 모니터링하는 측정 시스템
KR20100023043A (ko) 변압기 미터기 및 이를 이용한 시스템
JP2008541065A5 (enExample)
US9791477B2 (en) Plug-through energy monitor
KR20230018466A (ko) 센서, 회로 차단기, 충전 케이블 및 충전 스테이션
US10320184B2 (en) Method and means for complex, universal earth fault protection in power high and medium voltage system
JP5268969B2 (ja) デジタルテストプラグ及びこれを用いた電力・位相の測定方法
US11444444B2 (en) Arc detection antenna in electric meter systems
KR20210125314A (ko) 축소형 고장기록장치
AU2015100175A4 (en) Electromagnetic Radiation Detecting System and Method
Tobin et al. Remote current sensing on overhead power lines
CN222014318U (zh) 一种电流传感器仿真电路及电流传感器
AU2024244597A1 (en) Arc detection antenna
KR20230063511A (ko) 초민감형 누설전류 검출 장치
Tobin Measuring line currents remotely
US20200225271A1 (en) Measurement system for detection of faults on wires of a device or equipment
CN120233161A (zh) 用于监测电气系统的电流传感器
CN120633549A (zh) 一种电流传感器建模方法
Lesniewska et al. Influence of the external magnetic field on operation of the new technology current-to-voltage transducers
Kojovic Advanced protection solutions for improved power system dynamics performance
Taskinen et al. Monitor Ground Fault Leakage Current

Legal Events

Date Code Title Description
PSEA Patent sealed
RENW Renewal (renewal fees accepted)
RENW Renewal (renewal fees accepted)

Free format text: PATENT RENEWED FOR 3 YEARS UNTIL 10 MAY 2016 BY PIZZEYS PATENT AND TRADE MARK ATTORNEYS

Effective date: 20130410

LAPS Patent lapsed