BR112014012354A8 - dispositivo de medição de distribuição de potencial de superfície e método de medição de distribuição de potencial de superfície - Google Patents

dispositivo de medição de distribuição de potencial de superfície e método de medição de distribuição de potencial de superfície

Info

Publication number
BR112014012354A8
BR112014012354A8 BR112014012354A BR112014012354A BR112014012354A8 BR 112014012354 A8 BR112014012354 A8 BR 112014012354A8 BR 112014012354 A BR112014012354 A BR 112014012354A BR 112014012354 A BR112014012354 A BR 112014012354A BR 112014012354 A8 BR112014012354 A8 BR 112014012354A8
Authority
BR
Brazil
Prior art keywords
surface potential
distribution measuring
potential distribution
measuring device
voltage
Prior art date
Application number
BR112014012354A
Other languages
English (en)
Other versions
BR112014012354A2 (pt
Inventor
kumada Akiko
Ikeda Hisatoshi
Hidaka Kunihiko
Yamada Shinichiro
Yoshimitsu Tetsuo
Tsuboi Yuichi
Original Assignee
Univ Tokyo
Toshiba Mitsubishi Elec Ind
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 Univ Tokyo, Toshiba Mitsubishi Elec Ind filed Critical Univ Tokyo
Publication of BR112014012354A2 publication Critical patent/BR112014012354A2/pt
Publication of BR112014012354A8 publication Critical patent/BR112014012354A8/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/12—Measuring electrostatic fields or voltage-potential
    • G01R29/14—Measuring field distribution
    • 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
    • G01R15/241—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using electro-optical modulators, e.g. electro-absorption
    • G01R15/242—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using electro-optical modulators, e.g. electro-absorption based on the Pockels effect, i.e. linear electro-optic effect
    • 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
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • 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
    • G01R31/34—Testing dynamo-electric machines

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

resumo patente de invenção: "dispositivo de medição de distribuição de potencial de superfície e método de medição de distribuição de potencial de superfície". em um dispositivo de medição de distribuição de potencial de superfície (1) para sistema de redução de campo elétrico (3) de uma máquina elétrica giratória, um cristal pockels (25) é usado entre um laser (21) e a superfície (local de teste (l)) do sistema de redução de campo elétrico (3). assim, a intensidade de luz de um feixe laser refletido em um espelho (24) fornecido entre o cristal pockels (23) e o local de teste (l) corresponde a uma tensão de saída que é a diferença de tensão entre as primeira e segunda superfícies de extremidade do cristal pockels. mesmo quando uma tensão de inversor é gerada, usando-se detector de luz (25) tendo uma faixa de frequência capaz de seguir componentes de alta frequência da tensão de pulso do inversor, intensidade de luz é detectada pelo detector de luz. portanto, da intensidade de luz (tensão de saída), o dispositivo de medição (1) pode medir o potencial de superfície do sistema de redução de campo elétrico (3) no qual uma tensão de pulso do inversor é gerada.
BR112014012354A 2011-11-25 2012-11-21 dispositivo de medição de distribuição de potencial de superfície e método de medição de distribuição de potencial de superfície BR112014012354A8 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011258147A JP6192890B2 (ja) 2011-11-25 2011-11-25 表面電位分布計測装置および表面電位分布計測方法
PCT/JP2012/007467 WO2013076975A1 (ja) 2011-11-25 2012-11-21 表面電位分布計測装置および表面電位分布計測方法

Publications (2)

Publication Number Publication Date
BR112014012354A2 BR112014012354A2 (pt) 2017-06-13
BR112014012354A8 true BR112014012354A8 (pt) 2017-06-20

Family

ID=48469440

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112014012354A BR112014012354A8 (pt) 2011-11-25 2012-11-21 dispositivo de medição de distribuição de potencial de superfície e método de medição de distribuição de potencial de superfície

Country Status (7)

Country Link
US (1) US9702915B2 (pt)
EP (1) EP2784526B1 (pt)
JP (1) JP6192890B2 (pt)
CN (1) CN104024874B (pt)
BR (1) BR112014012354A8 (pt)
CA (1) CA2856201C (pt)
WO (1) WO2013076975A1 (pt)

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US20130054162A1 (en) 2011-08-31 2013-02-28 Tollgrade Communications, Inc. Methods and apparatus for determining conditions of power lines
EP2815479B1 (en) 2012-02-14 2017-01-04 Tollgrade Communications, Inc. Power line management system
CA2907558C (en) * 2013-03-19 2018-05-01 Toshiba Mitsubishi-Electric Industrial Systems Corporation Surface potential distribution measuring device
WO2015153539A2 (en) * 2014-03-31 2015-10-08 Tollgrade Communication, Inc. Optical voltage sensing for underground medium voltage wires
US10041980B2 (en) 2014-06-06 2018-08-07 Toshiba Mitsubishi-Electric Industrial Systems Corporation Three-dimensional surface potential distribution measurement apparatus
US10203355B2 (en) 2014-08-29 2019-02-12 Aclara Technologies Llc Power extraction for a medium voltage sensor using a capacitive voltage divider
BR112018016078B1 (pt) 2016-02-08 2023-05-02 The University Of Tokyo Sistema de medição de distribuição de potencial de superfície tridimensional
CN107884632B (zh) * 2017-10-18 2020-10-20 中国电力科学研究院 一种任意分裂直流线路导线表面电场的计算方法及系统
CN109709408B (zh) * 2019-03-08 2024-05-10 广东省职业病防治院 空间直流电场测量设备
CN111721994B (zh) * 2020-06-19 2022-09-06 贵州江源电力建设有限公司 一种分布式高压输电线路的电压检测系统
CN116718915A (zh) * 2023-08-10 2023-09-08 西门子电机(中国)有限公司 电机槽口电场强度检测方法、装置、电子设备和存储介质

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Also Published As

Publication number Publication date
CN104024874A (zh) 2014-09-03
CA2856201A1 (en) 2013-05-30
EP2784526A1 (en) 2014-10-01
CN104024874B (zh) 2017-03-29
WO2013076975A1 (ja) 2013-05-30
EP2784526A4 (en) 2015-07-22
EP2784526B1 (en) 2022-08-17
US20140300368A1 (en) 2014-10-09
BR112014012354A2 (pt) 2017-06-13
CA2856201C (en) 2018-08-14
JP2013113637A (ja) 2013-06-10
US9702915B2 (en) 2017-07-11
JP6192890B2 (ja) 2017-09-06

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]