TWI799424B - 熱非接觸式電壓及非接觸式電流裝置 - Google Patents

熱非接觸式電壓及非接觸式電流裝置 Download PDF

Info

Publication number
TWI799424B
TWI799424B TW107120684A TW107120684A TWI799424B TW I799424 B TWI799424 B TW I799424B TW 107120684 A TW107120684 A TW 107120684A TW 107120684 A TW107120684 A TW 107120684A TW I799424 B TWI799424 B TW I799424B
Authority
TW
Taiwan
Prior art keywords
contact
current devices
thermal
voltage
contact voltage
Prior art date
Application number
TW107120684A
Other languages
English (en)
Chinese (zh)
Other versions
TW201905425A (zh
Inventor
路易斯 席瓦
麥克 史都華
Original Assignee
美商富克有限公司
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 美商富克有限公司 filed Critical 美商富克有限公司
Publication of TW201905425A publication Critical patent/TW201905425A/zh
Application granted granted Critical
Publication of TWI799424B publication Critical patent/TWI799424B/zh

Links

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
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/302—Contactless testing
    • G01R31/308—Contactless testing using non-ionising electromagnetic radiation, e.g. optical radiation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/02—Arrangements for measuring electric power or power factor by thermal methods, e.g. calorimetric
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • 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
    • G01R15/24—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • 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
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
    • 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
    • G01R15/205—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 magneto-resistance devices, e.g. field plates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/08—Arrangements for measuring electric power or power factor by using galvanomagnetic-effect devices, e.g. Hall-effect devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/40—Display of information, e.g. of data or controls

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Radiation Pyrometers (AREA)
  • Locating Faults (AREA)
TW107120684A 2017-06-16 2018-06-15 熱非接觸式電壓及非接觸式電流裝置 TWI799424B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/625,812 US10120021B1 (en) 2017-06-16 2017-06-16 Thermal non-contact voltage and non-contact current devices
US15/625,812 2017-06-16

Publications (2)

Publication Number Publication Date
TW201905425A TW201905425A (zh) 2019-02-01
TWI799424B true TWI799424B (zh) 2023-04-21

Family

ID=62684626

Family Applications (1)

Application Number Title Priority Date Filing Date
TW107120684A TWI799424B (zh) 2017-06-16 2018-06-15 熱非接觸式電壓及非接觸式電流裝置

Country Status (5)

Country Link
US (1) US10120021B1 (enExample)
EP (1) EP3415930A1 (enExample)
JP (1) JP7257110B2 (enExample)
CN (1) CN109142842A (enExample)
TW (1) TWI799424B (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105432064B (zh) * 2013-03-15 2019-05-10 弗兰克公司 使用单独无线移动设备的红外图像的可见视听注释
US10375325B2 (en) * 2016-06-23 2019-08-06 Fluke Corporation Thermal anomaly detection
US11175314B2 (en) * 2018-04-06 2021-11-16 STB Electrical Test Equipment, Inc. Multimeter with a meter probe module and phasing probe module capable of wireless communication and taking measurements proximally
DE102018133208A1 (de) * 2018-12-20 2020-06-25 FUSS-EMV-Ing. Max Fuss GmbH & Co. KG Messeinrichtung zur Bestimmung von emittierten Störspannungen und Störströmen in elektrischen Leitungen und in der Umgebungsluft
CN112816769A (zh) * 2019-11-15 2021-05-18 许继集团有限公司 一种电流电压组合式数据采集装置
EP3839989B1 (de) * 2019-12-19 2024-08-21 HSP Hochspannungsgeräte GmbH Luftdrosselspule mit temperaturmesssystem
WO2021154288A1 (en) * 2020-01-31 2021-08-05 Hewlett-Packard Development Company, L.P. Determining electric field distributions
CN111948452A (zh) * 2020-08-13 2020-11-17 南方电网科学研究院有限责任公司 非侵入式微型传感器的谐波检测装置、方法及终端设备
CN112615347B (zh) * 2020-10-29 2021-12-10 深圳市中创电测技术有限公司 线路安全管理系统及方法
CN113447698B (zh) * 2021-06-11 2022-03-08 南方电网数字电网研究院有限公司 电压测量电路、方法及设备
CN113744197B (zh) * 2021-08-09 2024-01-02 福建工程学院 一种基于红紫外复合成像的电缆故障检测方法
CN114019226A (zh) * 2021-10-27 2022-02-08 北京大学 一种无接触式电量测量与记录装置
FR3135530B1 (fr) * 2022-05-16 2025-07-18 Dassault Aviat Brasseur électromagnétique, système de mesure électromagnétique,procédé de montage et méthode de mesure associée
CN115144649B (zh) * 2022-06-30 2024-06-14 成都通量科技有限公司 一种基于功率检测计的自检测电路

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201612527A (en) * 2014-09-16 2016-04-01 Ind Tech Res Inst Non-contact type voltage sensor for dual-wire power cable and method for compensating installation position variation thereof
US20160119592A1 (en) * 2014-10-24 2016-04-28 Fluke Corporation Imaging system employing fixed, modular mobile, and portable infrared cameras with ability to receive, communicate, and display data and images with proximity detection
CN106030320A (zh) * 2014-03-13 2016-10-12 欧姆龙株式会社 非接触式电压测量装置
CN106062569A (zh) * 2014-03-13 2016-10-26 欧姆龙株式会社 非接触电压计测装置
CN106124992A (zh) * 2015-03-13 2016-11-16 斯特凡·凯克艾森蓄电池协会 电压测量设备

Family Cites Families (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2363933C3 (de) 1973-12-20 1980-09-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Kombinierte Strom- und Spannungsmeßeinrichtung
US4173970A (en) * 1977-08-03 1979-11-13 Jaymin Research Corporation Thermographic diagnostic method and system
US4689752A (en) 1983-04-13 1987-08-25 Niagara Mohawk Power Corporation System and apparatus for monitoring and control of a bulk electric power delivery system
US4584523A (en) * 1983-10-03 1986-04-22 Rca Corporation Measurement of the current flow in an electric power transmission line by detection of infrared radiation therefrom
JP2581605Y2 (ja) 1992-09-01 1998-09-24 株式会社アドバンテスト 非接触交流電圧計
JPH06222087A (ja) 1993-01-27 1994-08-12 Hamamatsu Photonics Kk 電圧検出装置
US5973501A (en) 1993-10-18 1999-10-26 Metropolitan Industries, Inc. Current and voltage probe for measuring harmonic distortion
US6043640A (en) 1997-10-29 2000-03-28 Fluke Corporation Multimeter with current sensor
US6118270A (en) 1998-02-17 2000-09-12 Singer; Jerome R. Apparatus for fast measurements of current and power with scaleable wand-like sensor
GB2340224B (en) * 1998-08-01 2001-06-06 British Aerospace Thermographic wiring inspection
WO2000011484A1 (en) 1998-08-01 2000-03-02 Bae Systems Plc Thermographic wiring inspection
US6177800B1 (en) 1998-11-10 2001-01-23 Xerox Corporation Method and apparatus for using shuttered windows in a micro-electro-mechanical system
IL127699A0 (en) 1998-12-23 1999-10-28 Bar Dov Aharon Method and device for non contact detection of external electric or magnetic fields
US6812685B2 (en) 2001-03-22 2004-11-02 Actuant Corporation Auto-selecting, auto-ranging contact/noncontact voltage and continuity tester
JP2002298726A (ja) 2001-03-29 2002-10-11 Hitachi Ltd 計測装置
JP3761470B2 (ja) 2001-04-04 2006-03-29 北斗電子工業株式会社 非接触電圧計測方法及び装置並びに検出プローブ
JP2005164463A (ja) 2003-12-04 2005-06-23 Meidensha Corp 配電設備の電圧・電流計測装置
US7256588B2 (en) 2004-04-16 2007-08-14 General Electric Company Capacitive sensor and method for non-contacting gap and dielectric medium measurement
JP4611774B2 (ja) 2005-03-04 2011-01-12 東日本電信電話株式会社 非接触型電圧検出方法及び非接触型電圧検出装置
US7466145B2 (en) 2005-10-12 2008-12-16 Hioki Denki Kabushiki Kaisha Voltage measuring apparatus and power measuring apparatus
JP4607752B2 (ja) 2005-12-16 2011-01-05 日置電機株式会社 可変容量回路、電圧測定装置および電力測定装置
JP4607753B2 (ja) 2005-12-16 2011-01-05 日置電機株式会社 電圧測定装置および電力測定装置
JP4713358B2 (ja) 2006-02-08 2011-06-29 日置電機株式会社 電圧検出装置
JP4648228B2 (ja) 2006-03-24 2011-03-09 日置電機株式会社 電圧検出装置および初期化方法
JP5106798B2 (ja) 2006-06-22 2012-12-26 日置電機株式会社 電圧測定装置
JP4726722B2 (ja) 2006-07-03 2011-07-20 日置電機株式会社 電圧測定装置
JP4726721B2 (ja) 2006-07-03 2011-07-20 日置電機株式会社 電圧測定装置
JP4629625B2 (ja) 2006-07-12 2011-02-09 日置電機株式会社 電圧測定装置
GB0614261D0 (en) 2006-07-18 2006-08-30 Univ Sussex The Electric Potential Sensor
JP2008215900A (ja) 2007-03-01 2008-09-18 Hitachi Mobile Co Ltd 非接触電流計及びその測定補助具
JP5106909B2 (ja) 2007-04-10 2012-12-26 日置電機株式会社 線間電圧測定装置
JP5144110B2 (ja) 2007-04-13 2013-02-13 日置電機株式会社 電圧測定装置
JP4927632B2 (ja) 2007-04-13 2012-05-09 日置電機株式会社 電圧測定装置
JP5160248B2 (ja) 2008-01-18 2013-03-13 日置電機株式会社 電圧検出装置
US20100090682A1 (en) 2008-02-14 2010-04-15 Armstrong Eric A Multi-Meter Test Lead Probe For Hands-Free Electrical Measurement of Control Panel Industrial Terminal Blocks
US8222886B2 (en) 2008-06-18 2012-07-17 Hioki Denki Kabushiki Kaisha Voltage detecting apparatus and line voltage detecting apparatus having a detection electrode disposed facing a detected object
JP5389389B2 (ja) 2008-07-22 2014-01-15 日置電機株式会社 線間電圧測定装置およびプログラム
CN101881791B (zh) 2009-04-30 2015-08-05 日置电机株式会社 电压检测装置
JP5340817B2 (ja) 2009-06-11 2013-11-13 日置電機株式会社 電圧検出装置
JP5420387B2 (ja) 2009-12-09 2014-02-19 日置電機株式会社 電圧検出装置
JP5474707B2 (ja) 2010-08-30 2014-04-16 日置電機株式会社 電圧検出装置用の検出回路および電圧検出装置
US8466687B2 (en) * 2010-09-20 2013-06-18 The Aerospace Corporation System and method for detecting defects
US9063184B2 (en) 2011-02-09 2015-06-23 International Business Machines Corporation Non-contact current-sensing and voltage-sensing clamp
US8680845B2 (en) 2011-02-09 2014-03-25 International Business Machines Corporation Non-contact current and voltage sensor
JP5737750B2 (ja) 2011-02-25 2015-06-17 株式会社日立パワーソリューションズ 交流電力測定装置
JP5834663B2 (ja) * 2011-04-06 2015-12-24 富士通株式会社 交流電力測定装置
BR112014002634B1 (pt) 2011-08-03 2021-06-15 Fluke Corporation Método de obtenção e manutenção de registro de manutenção,sistema para obtenção e manutenção de registros de manutenção e meio de armazenamento legível por computador.
JP4995993B2 (ja) 2012-03-05 2012-08-08 日置電機株式会社 クランプ式センサ
US20140035607A1 (en) 2012-08-03 2014-02-06 Fluke Corporation Handheld Devices, Systems, and Methods for Measuring Parameters
JP5981271B2 (ja) 2012-08-28 2016-08-31 日置電機株式会社 電圧測定用センサおよび電圧測定装置
JP5981270B2 (ja) 2012-08-28 2016-08-31 日置電機株式会社 電圧測定用センサおよび電圧測定装置
KR101961097B1 (ko) * 2012-09-06 2019-03-25 삼성전자 주식회사 반도체 패키지 검사 장치
CN204649311U (zh) * 2012-09-14 2015-09-16 菲力尔系统公司 测量装置
JP6104578B2 (ja) 2012-11-30 2017-03-29 日置電機株式会社 検査装置および検査方法
JP2015111087A (ja) 2013-12-06 2015-06-18 オムロン株式会社 非接触電圧測定装置および非接触電圧測定方法
JP6210938B2 (ja) 2014-06-18 2017-10-11 日置電機株式会社 非接触型電圧検出装置
US10602082B2 (en) * 2014-09-17 2020-03-24 Fluke Corporation Triggered operation and/or recording of test and measurement or imaging tools
US20160080666A1 (en) 2014-09-17 2016-03-17 Fluke Corporation Test and measurement system with removable imaging tool
TWI649568B (zh) 2014-10-17 2019-02-01 日商日置電機股份有限公司 Voltage detecting device
JP2017032287A (ja) 2015-07-29 2017-02-09 日置電機株式会社 クランプ式センサおよび測定装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106030320A (zh) * 2014-03-13 2016-10-12 欧姆龙株式会社 非接触式电压测量装置
CN106062569A (zh) * 2014-03-13 2016-10-26 欧姆龙株式会社 非接触电压计测装置
TW201612527A (en) * 2014-09-16 2016-04-01 Ind Tech Res Inst Non-contact type voltage sensor for dual-wire power cable and method for compensating installation position variation thereof
US20160119592A1 (en) * 2014-10-24 2016-04-28 Fluke Corporation Imaging system employing fixed, modular mobile, and portable infrared cameras with ability to receive, communicate, and display data and images with proximity detection
CN106124992A (zh) * 2015-03-13 2016-11-16 斯特凡·凯克艾森蓄电池协会 电压测量设备

Also Published As

Publication number Publication date
EP3415930A1 (en) 2018-12-19
TW201905425A (zh) 2019-02-01
US10120021B1 (en) 2018-11-06
JP7257110B2 (ja) 2023-04-13
JP2019023623A (ja) 2019-02-14
CN109142842A (zh) 2019-01-04

Similar Documents

Publication Publication Date Title
TWI799424B (zh) 熱非接觸式電壓及非接觸式電流裝置
IL261620A (en) Devices and methods for high voltage and solar applications
GB201819068D0 (en) Puff sensing and power circuitry for vapourizer devices
EP3493224A4 (en) POWER SUPPLY CABLE AND POWER SUPPLY CABLE WITH CONNECTOR
EP3452875A4 (en) THERMOELECTRIC DEVICES AND SYSTEMS
EP3248200A4 (en) Element and electric generator
SI3175466T1 (sl) Električno stikalo, zlasti za visoke napetosti in/ali visoke tokove
EP3290933A4 (en) DEVICE FOR CONTACTLESS VOLTAGE MEASUREMENT
EP3707300A4 (en) THERMAL INSULATION AND RELATED PROCESSES
EP3167548A4 (en) Relaxation oscillator with current and voltage offset cancellation
EP3518069A4 (en) VOLTAGE REGULATOR AND POWER SUPPLY
EP3218944A4 (en) Element and electric power generator
IL266742B (en) A slip ring assembly capable of high rpm and current
GB2560195B (en) Electric circuits and power systems incorporating the same
EP3654498A4 (en) HINGE DEVICE AND ELECTRIC DRIVE SYSTEM
GB2540913B (en) Constant voltage and constant current driver circuit
EP3652604A4 (en) VOLTAGE REGULATED AC SUPPLY SYSTEMS AND PROCEDURES
EP3304594A4 (en) Semiconductor device with modified current distribution
EP3564684A4 (en) ELECTRICAL CONTACT AND ELECTRICAL COMPONENT HOUSING
EP3269034A4 (en) Element and electric generator
EP3468030A4 (en) THERMOELECTRIC ENERGY GENERATION DEVICE AND SYSTEM
KR102386728B9 (ko) 초고압 직류 전력케이블용 중간접속함 및 이를 포함하는 초고압 직류 전력케이블 접속시스템
EP3182544A4 (en) Digital power supply protection circuit and device
EP3678451A4 (en) VOLTAGE OUTPUT CIRCUIT AND ATOMIZATION DEVICE
PL3434244T3 (pl) Pomocnicze urządzenie zasilające i wózek inwalidzki