ATE91573T1 - Elektronische mehrphasentemperatursteuervorrichtung. - Google Patents

Elektronische mehrphasentemperatursteuervorrichtung.

Info

Publication number
ATE91573T1
ATE91573T1 AT88900431T AT88900431T ATE91573T1 AT E91573 T1 ATE91573 T1 AT E91573T1 AT 88900431 T AT88900431 T AT 88900431T AT 88900431 T AT88900431 T AT 88900431T AT E91573 T1 ATE91573 T1 AT E91573T1
Authority
AT
Austria
Prior art keywords
winding
temperature
transformer
phase
computed
Prior art date
Application number
AT88900431T
Other languages
English (en)
Inventor
Richard E Hagerman
John R Bodker
Joseph F Foster
Original Assignee
Qualitrol Corp
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 Qualitrol Corp filed Critical Qualitrol Corp
Application granted granted Critical
Publication of ATE91573T1 publication Critical patent/ATE91573T1/de

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images

Landscapes

  • Protection Of Transformers (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Control Of Temperature (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
AT88900431T 1986-12-12 1987-12-07 Elektronische mehrphasentemperatursteuervorrichtung. ATE91573T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/940,551 US4775245A (en) 1986-12-12 1986-12-12 Multi-phase electronic temperature controller
EP88900431A EP0335904B1 (de) 1986-12-12 1987-12-07 Elektronische mehrphasen-temperatursteuervorrichtung
PCT/US1987/003242 WO1988004488A1 (en) 1986-12-12 1987-12-07 Multi-phase electronic temperature controller

Publications (1)

Publication Number Publication Date
ATE91573T1 true ATE91573T1 (de) 1993-07-15

Family

ID=25475033

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88900431T ATE91573T1 (de) 1986-12-12 1987-12-07 Elektronische mehrphasentemperatursteuervorrichtung.

Country Status (8)

Country Link
US (1) US4775245A (de)
EP (1) EP0335904B1 (de)
JP (1) JP3157820B2 (de)
AT (1) ATE91573T1 (de)
CA (1) CA1291264C (de)
DE (1) DE3786559T2 (de)
MX (1) MX165151B (de)
WO (1) WO1988004488A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361215A (en) 1987-05-27 1994-11-01 Siege Industries, Inc. Spa control system
US6965815B1 (en) 1987-05-27 2005-11-15 Bilboa Instruments, Inc. Spa control system
DE19648332C2 (de) * 1996-11-22 2000-11-23 Messko Albert Hauser Gmbh & Co Verfahren zur Nachbildung und Anzeige der Wicklungstemperatur eines elektrischen Leistungstransformators und Thermometer zur Durchführung des Verfahrens
AT407206B (de) 1998-05-14 2001-01-25 Va Tech Elin Transformatoren G Verfahren und anordnung zur ermittlung von zustandsgrössen
CA2313993A1 (en) 2000-07-13 2002-01-13 Mark Anthony Weekes Apparatus for preventing thermal damage to an electrical power transformer
US6424266B1 (en) * 2000-07-17 2002-07-23 Nxtphase Technology Srl Apparatus for preventing thermal damage to an electrical power transformer
US6962435B2 (en) * 2000-12-15 2005-11-08 Abb Technology Ltd. Condition diagnosing
BRPI0116200B8 (pt) * 2000-12-15 2022-11-22 Abb Technology Ltd Método e dispositivo de diagnóstico para um comutador de derivação tendo um líquido isolante
US6714022B2 (en) * 2001-02-20 2004-03-30 Gary Hoffman Apparatus and method for cooling power transformers
US7508642B2 (en) * 2005-07-14 2009-03-24 Honeywell International Inc. Method and apparatus applying virtual Δt trip criterion in power distribution
US8360636B2 (en) * 2009-07-02 2013-01-29 Renesas Electronics America Inc. Temperature detection and reporting system and method in power driving and/or consuming system
CN102427218B (zh) * 2011-10-28 2014-06-11 国家电网公司 基于人工智能技术的变压器短期过载能力评估系统
US9046423B2 (en) * 2012-08-01 2015-06-02 Qualitrol Company, Llc Hybrid mechanical and electrical transformer monitor
CN104697664B (zh) * 2015-03-18 2017-03-15 深圳太辰光通信股份有限公司 调整变压器绕组热点温度在线监测的方法
CN106771092B (zh) * 2016-12-22 2018-04-13 西南交通大学 一种确定不同负载系数下变压器油时间常数的方法
CN109029781B (zh) * 2018-06-20 2020-06-02 国网天津市电力公司电力科学研究院 强迫油循环风冷层式绕组变压器的非侵入式绕组测温方法
CN110543197B (zh) * 2018-12-05 2021-04-02 中车长春轨道客车股份有限公司 一种控制列车主变压器工作的方法及装置
RU2717029C1 (ru) * 2019-07-16 2020-03-18 Илья Николаевич Джус Способ защиты трансформатора с рпн от перегрева

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA536421A (en) * 1957-01-29 General Electric Company Temperature-compensating device for liquid-immersed apparatus
US2440930A (en) * 1945-04-02 1948-05-04 Gen Electric Cooling system
US2834920A (en) * 1953-06-29 1958-05-13 Gen Electric Circuit for simulating transformer winding hot spot temperature
US2836788A (en) * 1954-04-19 1958-05-27 Gen Electric Induction apparatus
US3144770A (en) * 1961-01-30 1964-08-18 Gen Electric Means for determining an internal condition in electrical apparatus
US3148349A (en) * 1963-05-29 1964-09-08 Westinghouse Electric Corp Electrical temperature reproducer
US3289478A (en) * 1964-03-02 1966-12-06 Showa Electric Wire & Cable Co Supervisory system for temperatures of electric cables
US3880313A (en) * 1968-03-04 1975-04-29 Edward G Akers Safety cap and container
US4148086A (en) * 1977-06-07 1979-04-03 Landa Mikhail L Device for overload protection of electric apparatus
US4258570A (en) * 1979-01-15 1981-03-31 Fritz Weiler High voltage power transformer winding temperature control system
EP0133968B1 (de) * 1983-07-29 1989-06-07 Mitsubishi Denki Kabushiki Kaisha Festkörperüberstromdetektor
US4745571A (en) * 1985-08-30 1988-05-17 Qualitrol Corporation Modular electronic temperature controller

Also Published As

Publication number Publication date
DE3786559T2 (de) 1993-11-18
EP0335904B1 (de) 1993-07-14
EP0335904A1 (de) 1989-10-11
WO1988004488A1 (en) 1988-06-16
CA1291264C (en) 1991-10-22
JP3157820B2 (ja) 2001-04-16
JPH02501883A (ja) 1990-06-21
US4775245A (en) 1988-10-04
MX165151B (es) 1992-10-29
DE3786559D1 (de) 1993-08-19

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee