NO960621L - Anordning for registrering av statorjordslutninger ved trefasemaskiner - Google Patents

Anordning for registrering av statorjordslutninger ved trefasemaskiner

Info

Publication number
NO960621L
NO960621L NO960621A NO960621A NO960621L NO 960621 L NO960621 L NO 960621L NO 960621 A NO960621 A NO 960621A NO 960621 A NO960621 A NO 960621A NO 960621 L NO960621 L NO 960621L
Authority
NO
Norway
Prior art keywords
transformer
phase
registering
harmonic
phase machine
Prior art date
Application number
NO960621A
Other languages
English (en)
Other versions
NO960621D0 (no
Inventor
Jorg Strobl
Original Assignee
Elin Energieversorgung
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 Elin Energieversorgung filed Critical Elin Energieversorgung
Publication of NO960621D0 publication Critical patent/NO960621D0/no
Publication of NO960621L publication Critical patent/NO960621L/no

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
    • H02H7/08—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 motors
    • H02H7/0805—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 motors for synchronous motors
    • 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
    • G01R31/343—Testing dynamo-electric machines in operation
    • 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
    • G01R31/346—Testing of armature or field windings

Landscapes

  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Control Of Ac Motors In General (AREA)
  • Synchronous Machinery (AREA)
  • Protection Of Generators And Motors (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Control Of Turbines (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

Det foreslås en statorjordslut-ningsregistrering ved hvilken det kan fastslås en tydelig forskjell i den tredje harmoniske i den feilfrie og den jordslutningsbeheftede tilstand, og hvor. forstyrrelsesstrømmen likevel avledes og. , svingningene dempes. For dette formål er en trefasetransformator (2) tilkoplet til klemmene i en trefasemaskin (1) som j eksempelvis er en synkrongenerator. Trefasetransformatoren må oppvise en fri magnetisk kortslutning for å overføre en nullspenning i tilfelle av en jordslut-ning i trefasemaskinen (1). Transformatorens (2) primærvikling er koplet i stjerne, idet stjernepunktet er jordet. Transformatorens (2) sekundærvikling er koplet til en åpen trekant og belastet med motstanden (4) som kan frakoples med den i serie anordnede bryter (5). I. i trefasemaskinens (1) stjernepunkt er det tilkoplet en spenningstransformator (6).Transformatorens (6) sekundærspenning og spenningen over den åpne trekantvikling tilføres til et statisk jordslut-. i. ! ningsrelé (7) som registrerer en jord-. i. slutning i generatoren (1) i overens-stemmelse med størrelsen og fasestillin-gen av den tredje harmoniske i disse I spenninger.
NO960621A 1993-08-19 1996-02-16 Anordning for registrering av statorjordslutninger ved trefasemaskiner NO960621L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0166393A AT401443B (de) 1993-08-19 1993-08-19 Anordnung zur erfassung von ständererdschlüssen bei drehstrommaschinen
PCT/AT1994/000114 WO1995005695A1 (de) 1993-08-19 1994-08-12 Anordnung zur erfassung von ständererdschlüssen bei drehstrommaschinen

Publications (2)

Publication Number Publication Date
NO960621D0 NO960621D0 (no) 1996-02-16
NO960621L true NO960621L (no) 1996-02-16

Family

ID=3518301

Family Applications (1)

Application Number Title Priority Date Filing Date
NO960621A NO960621L (no) 1993-08-19 1996-02-16 Anordning for registrering av statorjordslutninger ved trefasemaskiner

Country Status (9)

Country Link
EP (1) EP0714565B1 (no)
CN (1) CN1037047C (no)
AT (2) AT401443B (no)
CZ (1) CZ284685B6 (no)
DE (1) DE59402771D1 (no)
FI (1) FI960732A7 (no)
NO (1) NO960621L (no)
SK (1) SK279599B6 (no)
WO (1) WO1995005695A1 (no)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999022249A1 (de) * 1997-10-27 1999-05-06 Siemens Aktiengesellschaft Verfahren sowie messeinheit zur überprüfung des vorliegens einer nullleiterverbindung zwischen einem vierleiternetz und einer messeinheit
DE10204489B4 (de) * 2002-01-30 2006-01-05 Demag Cranes & Components Gmbh Antrieb für ein Hebezeug mit einem drei Motorwicklungen aufweisenden Dreiphasendrehstrommotor
CN100438249C (zh) * 2002-12-05 2008-11-26 上海交通大学 选择性发电机定子单相接地保护方法
CN100373729C (zh) * 2005-01-14 2008-03-05 北京四方继保自动化股份有限公司 三次谐波动态调整判据结合电压比判据的定子接地保护
ES2431138T3 (es) * 2006-08-18 2013-11-25 Abb Research Ltd Detección de fallos de conexión a tierra
CN101383503B (zh) * 2007-09-03 2011-06-22 深圳市汇川技术股份有限公司 检测电机对地短路的系统及方法
WO2012010193A1 (en) * 2010-07-19 2012-01-26 Abb Technology Ag Device and method for detecting a ground fault
CN102169749B (zh) * 2011-01-26 2013-02-13 中电电气(江苏)股份有限公司 低零序阻抗缓谐波节能变压器
US9075099B2 (en) * 2011-03-03 2015-07-07 Abb Research Ltd. Method for adaptation of ground fault detection
DE102012022139B4 (de) * 2011-12-06 2024-11-28 Heidelberger Druckmaschinen Ag Vereinfachte elektrische Bremseinrichtung
CN102692583B (zh) * 2012-06-19 2014-06-11 国电大渡河检修安装有限公司 多支路发电机定子绕组接地短路点的查找方法
CN103532097B (zh) * 2012-07-05 2016-12-21 中国石油天然气集团公司 一种移动发电机漏电保护装置
CN103575936B (zh) * 2012-07-30 2016-04-13 广西玉柴机器股份有限公司 同步发电机定子绕组检测台架
CN103439656B (zh) * 2013-06-27 2015-11-18 广东电网公司电力科学研究院 基于故障电流流向的发电机定子绕组及其电气主回路接地故障诊断方法
ES2454045B2 (es) * 2013-12-18 2015-03-23 Universidad Politécnica de Madrid Sistema y método de localización de defectos a tierra en devanados estatóricos de máquinas síncronas puestas a tierra mediante una impedancia de elevado valor.
CN105486974B (zh) * 2015-12-31 2019-02-19 北京合康新能科技股份有限公司 检测电机的定子绕组端部接地的电路与方法
US10931223B2 (en) 2019-05-08 2021-02-23 Regal Beloit America, Inc. Circuit for detecting status of ground connection in an electric motor
CN115308592B (zh) * 2022-04-02 2025-05-13 东方电气集团东方电机有限公司 一种水轮发电机单相接地故障模拟系统、方法及应用

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH488305A (de) * 1968-09-03 1970-03-31 Bbc Brown Boveri & Cie Erdschlussschutzeinrichtung für Drehstromgeneratoren unter Ausnutzung der im Generator entstehenden dritten Oberwellen
US5305234A (en) * 1991-12-31 1994-04-19 Westinghouse Electric Corp. Thermal protection apparatus for a synchronous machine

Also Published As

Publication number Publication date
SK19896A3 (en) 1996-08-07
FI960732A0 (fi) 1996-02-16
CN1129495A (zh) 1996-08-21
ATE153190T1 (de) 1997-05-15
NO960621D0 (no) 1996-02-16
EP0714565A1 (de) 1996-06-05
SK279599B6 (sk) 1999-01-11
CZ284685B6 (cs) 1999-02-17
CZ35296A3 (en) 1996-05-15
AT401443B (de) 1996-09-25
EP0714565B1 (de) 1997-05-14
WO1995005695A1 (de) 1995-02-23
FI960732A7 (fi) 1996-02-16
ATA166393A (de) 1996-01-15
DE59402771D1 (de) 1997-06-19
CN1037047C (zh) 1998-01-14

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