IN2015DN00498A - - Google Patents

Info

Publication number
IN2015DN00498A
IN2015DN00498A IN498DEN2015A IN2015DN00498A IN 2015DN00498 A IN2015DN00498 A IN 2015DN00498A IN 498DEN2015 A IN498DEN2015 A IN 498DEN2015A IN 2015DN00498 A IN2015DN00498 A IN 2015DN00498A
Authority
IN
India
Prior art keywords
circuit
auxiliary converter
detection resistance
analog detection
resistance circuit
Prior art date
Application number
Inventor
Seiichi Nakamura
Naoki Wakamatsu
Satoshi Ishida
Original Assignee
Toshiba Kk
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 Toshiba Kk filed Critical Toshiba Kk
Publication of IN2015DN00498A publication Critical patent/IN2015DN00498A/en

Links

Classifications

    • 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
    • H02H3/08—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 excess current
    • H02H3/10—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 excess current additionally responsive to some other abnormal electrical conditions
    • 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
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
    • G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
    • 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
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
    • 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
    • H02H3/08—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 excess current

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A digital protection relay according to an embodiment of the present invention has: an auxiliary converter (2) for reducing the voltage of an electrical signal from a main circuit converter (1); a detection resistance circuit (20) connected on an output side the input side being the auxiliary converter (2) the detection resistance circuit (20) formed in the shape of the letter p or T; an analog detection circuit (3) attached to the output side of the detection resistance circuit (20) and used for detecting the electrical level of the electrical signal from the auxiliary converter (2); an A/D conversion circuit (4) connected to the analog detection circuit (3); a central processing unit (5) connected to the A/D conversion circuit and used for performing protective actions; and a trip output contact point (9) operating based on the processing of the central processing unit (5) for operating an external breaker (21). The digital protection relay provides between the detection resistance circuit (20) and the analog detection circuit (3) an input contact point terminal (11) for inputting a test signal using a fixed voltage from an external test device (13) to the analog detection circuit (3) as a signal corresponding to the output of the auxiliary converter (2).
IN498DEN2015 2012-08-17 2013-07-31 IN2015DN00498A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012180856A JP6058315B2 (en) 2012-08-17 2012-08-17 Digital protection relay
PCT/JP2013/070789 WO2014027571A1 (en) 2012-08-17 2013-07-31 Digital protection relay, digital protection relay test device, and method for testing digital protection relay

Publications (1)

Publication Number Publication Date
IN2015DN00498A true IN2015DN00498A (en) 2015-06-26

Family

ID=50287112

Family Applications (1)

Application Number Title Priority Date Filing Date
IN498DEN2015 IN2015DN00498A (en) 2012-08-17 2013-07-31

Country Status (10)

Country Link
US (1) US20150200534A1 (en)
EP (1) EP2887482A4 (en)
JP (1) JP6058315B2 (en)
KR (1) KR20150020678A (en)
CN (1) CN104521087A (en)
BR (1) BR112015002668A2 (en)
IN (1) IN2015DN00498A (en)
RU (1) RU2015109140A (en)
TW (1) TWI504088B (en)
WO (1) WO2014027571A1 (en)

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FR3035750B1 (en) * 2015-04-30 2018-06-15 Schneider Electric Industries Sas DEVICE FOR PROTECTING AN ELECTRICAL NETWORK
KR101649704B1 (en) 2015-07-28 2016-08-19 엘에스산전 주식회사 Power failure monitoring apparatus for digital protecting relay
FR3053132B1 (en) * 2016-06-27 2018-06-15 Schneider Electric Ind Sas SYSTEM FOR MONITORING AN ELECTRICAL NETWORK
CN106124977A (en) * 2016-06-29 2016-11-16 南京国电南自电网自动化有限公司 A kind of relay contact analog control system method based on virtual instrument
JP6685465B2 (en) * 2017-03-10 2020-04-22 三菱電機株式会社 Electronic circuit breaker
AU2018204677B2 (en) * 2017-07-24 2021-12-09 Cristaudo, Anthony Mining electrical outlet protection devices test unit
EP3480609B1 (en) * 2017-11-02 2020-04-29 Siemens Aktiengesellschaft Modification of measuring signals for testing of protection systems for electrical power grids
CN110441677B (en) * 2018-09-04 2021-06-29 凯文·马克·柯蒂斯 Automatic relay tester who disposes
US11892509B2 (en) * 2019-04-10 2024-02-06 Ls Electric Co., Ltd. Protective relay inspection device
CN110967554A (en) * 2019-12-13 2020-04-07 四川新能电力有限公司 Overload protection system is prevented to high-power switch
CN113687145A (en) * 2020-05-18 2021-11-23 贵州振华群英电器有限公司（国营第八九一厂） Voltage drop testing device of alternating current contactor
CN112072620B (en) * 2020-08-31 2022-09-20 许继集团有限公司 Relay protection export method applying relay protection device
CN112684334B (en) * 2020-12-22 2022-07-22 上海玖行能源科技有限公司 Electric automobile alternating current pile main relay adhesion detection system and method
CN113295942B (en) * 2021-04-23 2022-03-08 四川华能宝兴河水电有限责任公司 Relay protection device constant value checking system and method
CN113945880A (en) * 2021-09-10 2022-01-18 中广核核电运营有限公司 Automatic calibration device and method for testing distribution board relay protection device
CN114113847B (en) * 2021-11-23 2024-04-12 天津凯发电气股份有限公司 Test method and device for relay protection CPU plug-in
CN113899939B (en) * 2021-12-10 2022-03-29 广东省新一代通信与网络创新研究院 Power failure warning circuit and processing method for communication equipment and communication equipment

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US4060844A (en) * 1976-02-17 1977-11-29 I-T-E Imperial Corporation Solid state tripping circuit
US4464698A (en) * 1982-09-20 1984-08-07 Hitachi, Ltd. Protective relay
JP2755697B2 (en) * 1989-06-27 1998-05-20 株式会社東芝 Protective relay
FR2729473A1 (en) * 1995-01-16 1996-07-19 Schneider Electric Sa DEVICE FOR TESTING A PROTECTION RELAY CONNECTED TO NON-MAGNETIC SENSORS
US6411913B1 (en) * 1998-04-28 2002-06-25 Robert W. Beckwith Synchronous extremely low frequency (ELF) receiver
GB9822515D0 (en) * 1998-10-16 1998-12-09 Alstom Uk Ltd Improvements relating to monitoring apparatus for electrical circuits
EP1109280B1 (en) * 1999-12-16 2014-07-16 ABB Technology AG A digital multifunction relay having improved characteristics
US7123156B2 (en) * 1999-12-17 2006-10-17 L.S. Unico, Inc. Lighted status indicator corresponding to the positions of circuit breaker, switch or fuse
EP1113556A1 (en) * 1999-12-30 2001-07-04 ABB T&D Technologies Ltd. A digital relay having an improved man-machine interface
JP2008079367A (en) * 2006-09-19 2008-04-03 Toshiba Corp Protection relay device
US8023235B2 (en) * 2006-10-31 2011-09-20 Siemens Industry, Inc. Multifunctional residential circuit breaker
JP2009171723A (en) * 2008-01-16 2009-07-30 Chugoku Electric Power Co Inc:The Test instrument for digital protective relay
CN101900771B (en) * 2009-05-31 2013-11-27 西门子公司 RCD (Residual Current Device) detection device and detection method
JP5627274B2 (en) * 2010-04-19 2014-11-19 株式会社東芝 Digital protection relay and digital protection relay test equipment
JP2012151978A (en) * 2011-01-18 2012-08-09 Toshiba Corp Digital protection relay and testing method thereof

Also Published As

Publication number Publication date
WO2014027571A1 (en) 2014-02-20
KR20150020678A (en) 2015-02-26
RU2015109140A (en) 2016-10-10
JP2014039408A (en) 2014-02-27
TW201429096A (en) 2014-07-16
BR112015002668A2 (en) 2017-07-04
CN104521087A (en) 2015-04-15
EP2887482A4 (en) 2016-04-27
EP2887482A1 (en) 2015-06-24
JP6058315B2 (en) 2017-01-11
TWI504088B (en) 2015-10-11
US20150200534A1 (en) 2015-07-16

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