CN103547932B - 使用可变频率的测试信号的隔离监控 - Google Patents

使用可变频率的测试信号的隔离监控 Download PDF

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Publication number
CN103547932B
CN103547932B CN201280024649.6A CN201280024649A CN103547932B CN 103547932 B CN103547932 B CN 103547932B CN 201280024649 A CN201280024649 A CN 201280024649A CN 103547932 B CN103547932 B CN 103547932B
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Prior art keywords
leakage current
test signal
current
frequency
voltage source
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Chinese (zh)
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CN103547932A (zh
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D·赫尔梅林
R·莱曼
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SMA Solar Technology AG
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SMA Solar Technology AG
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G01R27/18—Measuring resistance to earth, i.e. line to ground
    • 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
    • G01R31/52—Testing for short-circuits, leakage current or ground faults

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
CN201280024649.6A 2011-05-24 2012-05-24 使用可变频率的测试信号的隔离监控 Active CN103547932B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011050590.3 2011-05-24
DE102011050590A DE102011050590A1 (de) 2011-05-24 2011-05-24 Isolationsüberwachung mit einem Prüfsignal variabler Frequenz
PCT/EP2012/059650 WO2012160118A1 (en) 2011-05-24 2012-05-24 Isolation monitoring using a test signal of variable frequency

Publications (2)

Publication Number Publication Date
CN103547932A CN103547932A (zh) 2014-01-29
CN103547932B true CN103547932B (zh) 2016-09-21

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CN201280024649.6A Active CN103547932B (zh) 2011-05-24 2012-05-24 使用可变频率的测试信号的隔离监控

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US (1) US9720025B2 (enExample)
EP (1) EP2721423B1 (enExample)
JP (1) JP6057094B2 (enExample)
CN (1) CN103547932B (enExample)
DE (1) DE102011050590A1 (enExample)
ES (1) ES2627974T3 (enExample)
WO (1) WO2012160118A1 (enExample)

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FR3040494B1 (fr) * 2015-08-26 2019-10-18 Valeo Siemens Eautomotive France Sas Systeme electrique comportant un dispositif d'evaluation d'un defaut d'isolation, vehicule automobile comportant un tel systeme electrique et procede d'evaluation d'un defaut d'isolation
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US9991977B2 (en) * 2015-10-30 2018-06-05 Rohde & Schwarz Gmbh & Co. Kg Smart testing management
CN107219404B (zh) 2016-03-21 2020-11-10 华为技术有限公司 一种频率调节的方法及装置
GB2549462B (en) * 2016-04-13 2020-02-19 General Electric Technology Gmbh Voltage source converter
DE102016208960B3 (de) * 2016-05-24 2017-11-09 Continental Automotive Gmbh Überwachungsvorrichtung und Verfahren zum Überwachen einer gegenüber einem Referenzpotential galvanisch entkoppelten Wechselspannungsquelle
EP3361270B1 (en) * 2017-02-09 2019-06-26 ABB Schweiz AG Method and device for fast insulation monitoring of electrical devices having large ground capacitance
GB2562508B (en) * 2017-05-17 2019-11-20 General Electric Technology Gmbh An electrical assembly
DE102017217473B3 (de) * 2017-09-29 2019-01-17 Bender Gmbh & Co. Kg Verfahren und Überwachungsvorrichtung zur selektiven Bestimmung einer Teil-Netzableitkapazität in einem ungeerdeten Stromversorgungssystem
CN108445336A (zh) * 2017-10-23 2018-08-24 国网山东省电力公司济宁供电公司 一种配电网有功泄漏电流在线测量方法
DE102017129083A1 (de) 2017-12-06 2019-06-06 Sma Solar Technology Ag Fehlabschaltsicheres Betriebsverfahren für eine dezentrale Energieerzeugungsanlage
EP3509177B1 (en) * 2018-01-09 2023-07-12 ABB Schweiz AG Method for detecting earth-fault conditions in a power conversion apparatus
CN111082460B (zh) * 2018-03-02 2022-04-08 阳光电源股份有限公司 光伏发电系统、逆变器及其并网运行控制方法和装置
CN108333438B (zh) * 2018-03-14 2020-04-10 云南电网有限责任公司电力科学研究院 一种电容电流的测试方法、装置及系统
CN108303595B (zh) * 2018-03-14 2020-04-10 云南电网有限责任公司电力科学研究院 一种基于异频相电流的电容电流测试方法、装置及系统
CN108548982B (zh) * 2018-03-14 2020-03-10 云南电网有限责任公司电力科学研究院 一种电容电流的测试方法、装置及系统
EP3546957A1 (en) * 2018-03-28 2019-10-02 Siemens Healthcare GmbH Isolated grounding effectiveness monitor
DE102019106257A1 (de) * 2019-03-12 2020-09-17 Sma Solar Technology Ag Batterie-Wechselrichtersystem
GB2591439B (en) * 2019-11-19 2023-11-01 Viper Innovations Ltd Cable insulation testing method
DE102019132242B4 (de) * 2019-11-28 2021-06-17 Bender Gmbh & Co. Kg Verwendungen einer Schaltungsanordnung mit aktiver Messspannung zur Bestimmung eines Isolationswiderstands in einem oder mehreren ungeerdeten Stromversorgungssystem(en)
EP3879283A1 (de) * 2020-03-11 2021-09-15 FRONIUS INTERNATIONAL GmbH Verfahren und photovoltaik-wechselrichter zur bestimmung der anlagenkapazität einer photovoltaik-anlage gegen erde
CN111239477B (zh) * 2020-03-12 2025-01-03 国网吉林省电力有限公司长春供电公司 小电流接地电容电流在线测量系统
AT523526B1 (de) * 2020-04-10 2021-09-15 Seibt Kristl & Co Gmbh Verfahren, Vorrichtung und System zur Bestimmung eines Kapazitätswertes einer Erdungskapazität eines ungeerdeten Stromnetzes
US20220244320A1 (en) * 2021-01-29 2022-08-04 Texas Instruments Incorporated Low cost method-b high voltage isolation screen test
CN114966205B (zh) * 2021-02-19 2024-07-30 华为数字能源技术有限公司 一种绝缘阻抗检测方法、装置及系统
CN113224730B (zh) * 2021-05-21 2022-03-15 珠海格力电器股份有限公司 一种漏电保护设备控制方法、控制装置及控制设备
CN119197408B (zh) * 2024-10-17 2025-07-18 深圳市正源翔工业智能有限公司 一种触发式测头故障检测方法及系统

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Also Published As

Publication number Publication date
JP2014517667A (ja) 2014-07-17
EP2721423B1 (en) 2017-03-15
US20140097854A1 (en) 2014-04-10
EP2721423A1 (en) 2014-04-23
CN103547932A (zh) 2014-01-29
DE102011050590A1 (de) 2012-11-29
US9720025B2 (en) 2017-08-01
WO2012160118A1 (en) 2012-11-29
ES2627974T3 (es) 2017-08-01
JP6057094B2 (ja) 2017-01-11

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