HK1062588A1 - Method and apparatus for monitoring grounding of astar-connected stator - Google Patents

Method and apparatus for monitoring grounding of astar-connected stator

Info

Publication number
HK1062588A1
HK1062588A1 HK04105493A HK04105493A HK1062588A1 HK 1062588 A1 HK1062588 A1 HK 1062588A1 HK 04105493 A HK04105493 A HK 04105493A HK 04105493 A HK04105493 A HK 04105493A HK 1062588 A1 HK1062588 A1 HK 1062588A1
Authority
HK
Hong Kong
Prior art keywords
astar
connected stator
monitoring grounding
grounding
monitoring
Prior art date
Application number
HK04105493A
Inventor
Andreas Jurisch
Michael Schwenke
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Publication of HK1062588A1 publication Critical patent/HK1062588A1/en

Links

Classifications

    • 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
    • H02H7/06—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 dynamo-electric generators; for synchronous capacitors
    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • 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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/337—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers avoiding disconnection due to reactive fault currents
    • 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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—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 both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
HK04105493A 2002-11-15 2004-07-26 Method and apparatus for monitoring grounding of astar-connected stator HK1062588A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2002153864 DE10253864B4 (en) 2002-11-15 2002-11-15 Method and arrangement for earth fault monitoring of a stator in star connection

Publications (1)

Publication Number Publication Date
HK1062588A1 true HK1062588A1 (en) 2004-11-12

Family

ID=32240161

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04105493A HK1062588A1 (en) 2002-11-15 2004-07-26 Method and apparatus for monitoring grounding of astar-connected stator

Country Status (3)

Country Link
CN (1) CN1279365C (en)
DE (1) DE10253864B4 (en)
HK (1) HK1062588A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006023324A1 (en) * 2006-05-11 2007-11-15 Siemens Ag Detection and limitation of maximum stator currents
EP2372857B1 (en) * 2010-03-31 2015-10-07 SMA Solar Technology AG Determination of the proportion of differential current made up of faulty current
DE102011002084A1 (en) * 2011-04-15 2012-10-18 Sma Solar Technology Ag Method and device for determining a fault current component on a differential current
CN102211531B (en) * 2011-04-29 2013-05-15 上海磁浮交通发展有限公司 Method for confirming one-phase multipoint ground fault of long stator
RU2540267C1 (en) * 2013-08-27 2015-02-10 Общество с ограниченной ответственностью Научно-производственное предприятие "ЭКРА" Method for determining homogeneity of electrical quantity
CN116148709B (en) * 2022-12-28 2024-03-29 中国长江电力股份有限公司 Large-scale generator stator ground fault branch judgment method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629483A1 (en) * 1996-07-12 1998-01-22 Siemens Ag Monitoring system for electrical machine star-connected stator windings

Also Published As

Publication number Publication date
CN1279365C (en) 2006-10-11
DE10253864B4 (en) 2005-04-21
DE10253864A1 (en) 2004-06-03
CN1501092A (en) 2004-06-02

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20101114