IN2014CN03478A - - Google Patents

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Publication number
IN2014CN03478A
IN2014CN03478A IN3478CHN2014A IN2014CN03478A IN 2014CN03478 A IN2014CN03478 A IN 2014CN03478A IN 3478CHN2014 A IN3478CHN2014 A IN 3478CHN2014A IN 2014CN03478 A IN2014CN03478 A IN 2014CN03478A
Authority
IN
India
Prior art keywords
component
circuit
current
determined
arc
Prior art date
Application number
Inventor
Johannes Lang
Thomas Wegener
Marcel Kratochvil
Holger Behrends
Michael Viotto
Original Assignee
Sma Solar Technology Ag
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 Sma Solar Technology Ag filed Critical Sma Solar Technology Ag
Publication of IN2014CN03478A publication Critical patent/IN2014CN03478A/en

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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
    • G01R31/54—Testing for continuity
    • 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
    • G01R31/333—Testing of the switching capacity of high-voltage circuit-breakers ; Testing of breaking capacity or related variables, e.g. post arc current or transient recovery voltage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/26—Means for detecting the presence of an arc or other discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/50—Means for detecting the presence of an arc or discharge
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H02H1/0015—Using arc detectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • 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
    • H02H7/20—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 electronic equipment
    • H02H7/205—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 electronic equipment for controlled semi-conductors which are not included in a specific circuit arrangement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inverter Devices (AREA)
  • Testing Relating To Insulation (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

ACACDCDCACThe invention relates to a method for detecting an arc in a DC circuit. The method comprises the following steps. An AC component (I) of a current (I) flowing in the circuit is measured and analyzed and at least one parameter of the AC component (I) is determined. The level of a DC component (I) of the current (I) is varied and a degree of correlation between the level of the DC component (I) of the current (I) flowing in the DC circuit and the at least one parameter of the AC component (I) is determined. An arc is detected and signaled on the basis of the degree of correlation determined. The invention also relates to an apparatus for carrying out the method and to an inverter comprising such an apparatus.
IN3478CHN2014 2011-10-14 2012-10-12 IN2014CN03478A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011054518 2011-10-14
PCT/EP2012/070311 WO2013053912A1 (en) 2011-10-14 2012-10-12 Method and apparatus for detecting an arc in a dc circuit

Publications (1)

Publication Number Publication Date
IN2014CN03478A true IN2014CN03478A (en) 2015-10-16

Family

ID=47046590

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3478CHN2014 IN2014CN03478A (en) 2011-10-14 2012-10-12

Country Status (7)

Country Link
US (1) US9435845B2 (en)
EP (1) EP2766968B1 (en)
JP (1) JP2014531022A (en)
CN (1) CN103875144B (en)
DE (1) DE102012109749A1 (en)
IN (1) IN2014CN03478A (en)
WO (1) WO2013053912A1 (en)

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US11687112B2 (en) 2006-12-06 2023-06-27 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US9088178B2 (en) 2006-12-06 2015-07-21 Solaredge Technologies Ltd Distributed power harvesting systems using DC power sources
US11735910B2 (en) 2006-12-06 2023-08-22 Solaredge Technologies Ltd. Distributed power system using direct current power sources
US8319483B2 (en) 2007-08-06 2012-11-27 Solaredge Technologies Ltd. Digital average input current control in power converter
US8384243B2 (en) 2007-12-04 2013-02-26 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8473250B2 (en) 2006-12-06 2013-06-25 Solaredge, Ltd. Monitoring of distributed power harvesting systems using DC power sources
US11855231B2 (en) 2006-12-06 2023-12-26 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8013472B2 (en) 2006-12-06 2011-09-06 Solaredge, Ltd. Method for distributed power harvesting using DC power sources
US11888387B2 (en) 2006-12-06 2024-01-30 Solaredge Technologies Ltd. Safety mechanisms, wake up and shutdown methods in distributed power installations
US11728768B2 (en) 2006-12-06 2023-08-15 Solaredge Technologies Ltd. Pairing of components in a direct current distributed power generation system
US11296650B2 (en) 2006-12-06 2022-04-05 Solaredge Technologies Ltd. System and method for protection during inverter shutdown in distributed power installations
US8947194B2 (en) 2009-05-26 2015-02-03 Solaredge Technologies Ltd. Theft detection and prevention in a power generation system
US8963369B2 (en) 2007-12-04 2015-02-24 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
US8319471B2 (en) 2006-12-06 2012-11-27 Solaredge, Ltd. Battery power delivery module
US11569659B2 (en) 2006-12-06 2023-01-31 Solaredge Technologies Ltd. Distributed power harvesting systems using DC power sources
CN101933209B (en) 2007-12-05 2015-10-21 太阳能安吉有限公司 Release mechanism in distributed electrical power apparatus, to wake up and method for closing
WO2009136358A1 (en) 2008-05-05 2009-11-12 Solaredge Technologies Ltd. Direct current power combiner
US10673229B2 (en) 2010-11-09 2020-06-02 Solaredge Technologies Ltd. Arc detection and prevention in a power generation system
GB2485527B (en) 2010-11-09 2012-12-19 Solaredge Technologies Ltd Arc detection and prevention in a power generation system
GB2483317B (en) 2011-01-12 2012-08-22 Solaredge Technologies Ltd Serially connected inverters
GB2498365A (en) 2012-01-11 2013-07-17 Solaredge Technologies Ltd Photovoltaic module
GB2498791A (en) 2012-01-30 2013-07-31 Solaredge Technologies Ltd Photovoltaic panel circuitry
GB2498790A (en) 2012-01-30 2013-07-31 Solaredge Technologies Ltd Maximising power in a photovoltaic distributed power system
CN104466905B (en) * 2014-12-23 2017-07-25 珠海格力电器股份有限公司 A kind of fault arc protection device and its method
US9812269B1 (en) * 2015-03-10 2017-11-07 Synapse Wireless, Inc. Arc fault detection in solar panel systems
GB2546553B (en) 2016-01-25 2020-08-26 Ge Aviat Systems Ltd Circuit and method for detecting arc faults
US11177663B2 (en) 2016-04-05 2021-11-16 Solaredge Technologies Ltd. Chain of power devices
WO2017221493A1 (en) * 2016-06-21 2017-12-28 三菱電機株式会社 Dc electric circuit protection device and arc detection method
CN114977076A (en) * 2017-01-17 2022-08-30 太阳能安吉科技有限公司 Arc detection and prevention in power generation systems
DE102017105182A1 (en) 2017-03-10 2018-09-13 Audi Ag Method for detecting a fault in an electrical network and evaluation device, measuring circuit and motor vehicle
DE102019202039B3 (en) * 2019-02-15 2020-06-04 Siemens Aktiengesellschaft Arc detection in the DC network
US11067638B2 (en) 2019-12-12 2021-07-20 Sma Solar Technology Ag Method of and system for detecting a serial arc fault in a power circuit
WO2022044626A1 (en) * 2020-08-26 2022-03-03 パナソニックＩｐマネジメント株式会社 Arc detection device, arc detection system, arc detection method, and program

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WO1995025374A1 (en) 1994-03-16 1995-09-21 Alpha Real Ag Method of protecting electrical equipment, in particular direct current equipment, e.g. photo-voltaic equipment, and a detection unit for said equipment
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Also Published As

Publication number Publication date
US9435845B2 (en) 2016-09-06
WO2013053912A1 (en) 2013-04-18
DE102012109749A1 (en) 2013-04-18
CN103875144B (en) 2016-04-13
JP2014531022A (en) 2014-11-20
US20140210485A1 (en) 2014-07-31
EP2766968A1 (en) 2014-08-20
CN103875144A (en) 2014-06-18
EP2766968B1 (en) 2015-02-18

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