CA1059629A - Overtemperature protective circuit for switching devices - Google Patents

Overtemperature protective circuit for switching devices

Info

Publication number
CA1059629A
CA1059629A CA242,342A CA242342A CA1059629A CA 1059629 A CA1059629 A CA 1059629A CA 242342 A CA242342 A CA 242342A CA 1059629 A CA1059629 A CA 1059629A
Authority
CA
Canada
Prior art keywords
circuit
analogue
series
switch
current
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA242,342A
Other languages
English (en)
French (fr)
Inventor
Robert H. Rehder
David R. Boothman
Everett C. Elgar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Canada Co
Original Assignee
Canadian General Electric Co Ltd
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 Canadian General Electric Co Ltd filed Critical Canadian General Electric Co Ltd
Priority to CA242,342A priority Critical patent/CA1059629A/en
Priority to US05/730,856 priority patent/US4072997A/en
Priority to GB42870/76A priority patent/GB1534569A/en
Priority to JP51133295A priority patent/JPS5276980A/ja
Priority to DE19762651050 priority patent/DE2651050A1/de
Priority to FR7636815A priority patent/FR2335975A1/fr
Application granted granted Critical
Publication of CA1059629A publication Critical patent/CA1059629A/en
Expired legal-status Critical Current

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
    • 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
    • H02H7/22—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 distribution gear, e.g. bus-bar systems; for switching devices
    • H02H7/222—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 distribution gear, e.g. bus-bar systems; for switching devices for switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity
    • H01H2011/0068—Testing or measuring non-electrical properties of switches, e.g. contact velocity measuring the temperature of the switch or parts thereof

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Keying Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)
CA242,342A 1975-12-18 1975-12-18 Overtemperature protective circuit for switching devices Expired CA1059629A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA242,342A CA1059629A (en) 1975-12-18 1975-12-18 Overtemperature protective circuit for switching devices
US05/730,856 US4072997A (en) 1975-12-18 1976-10-08 Overtemperature protective circuit for switching devices
GB42870/76A GB1534569A (en) 1975-12-18 1976-10-15 Overtemperature protective circuit for switching devices
JP51133295A JPS5276980A (en) 1975-12-18 1976-11-08 Contact temperature detecting circuit for electric switch
DE19762651050 DE2651050A1 (de) 1975-12-18 1976-11-09 Schaltung zur ueberwachung der temperatur von kontakten einer elektrischen schalteinrichtung
FR7636815A FR2335975A1 (fr) 1975-12-18 1976-12-07 Circuit de protection d'un dispositif interrupteur de courant electrique contre les depassements de temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA242,342A CA1059629A (en) 1975-12-18 1975-12-18 Overtemperature protective circuit for switching devices

Publications (1)

Publication Number Publication Date
CA1059629A true CA1059629A (en) 1979-07-31

Family

ID=4104814

Family Applications (1)

Application Number Title Priority Date Filing Date
CA242,342A Expired CA1059629A (en) 1975-12-18 1975-12-18 Overtemperature protective circuit for switching devices

Country Status (6)

Country Link
US (1) US4072997A (OSRAM)
JP (1) JPS5276980A (OSRAM)
CA (1) CA1059629A (OSRAM)
DE (1) DE2651050A1 (OSRAM)
FR (1) FR2335975A1 (OSRAM)
GB (1) GB1534569A (OSRAM)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2726458A1 (de) * 1977-06-11 1979-01-04 Bosch Gmbh Robert Elektrisch betriebene schnellheizeinrichtung
EP0000585B1 (en) * 1977-08-01 1983-03-09 General Electric Company Automatic control system for processing signals from an overheat monitor of a dynamoelectric machine
DE3137496C2 (de) * 1981-09-21 1990-01-25 Siemens AG, 1000 Berlin und 8000 München Digitaler Überstromauslöser
US6469414B2 (en) 2000-06-30 2002-10-22 General Electric Company Slip-ring mounting assembly for high-power rotary current collector system
US6456021B1 (en) 2000-06-30 2002-09-24 General Electric Company Rotating variable frequency transformer with high voltage cables
US6465926B2 (en) 2000-06-30 2002-10-15 General Electric Company Cleaning/cooling of high-power rotary current collector system
CA2351895C (en) 2000-06-30 2009-12-15 General Electric Company Slip-ring mounting assembly for high-power rotary current collector system
EP2407266B1 (en) * 2009-11-25 2017-05-10 Panasonic Intellectual Property Management Co., Ltd. Welding method and welding device
CN102944329B (zh) * 2012-10-25 2014-07-16 长兴县供电局 一种低压智能电容器温度测量系统的温度测量方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643130A (en) * 1969-05-31 1972-02-15 Siemens Ag Supervisory device for rectifier having semiconductor valve-type components
CH534444A (de) * 1972-05-23 1973-02-28 Sprecher & Schuh Ag Elektronisches Motorschutzrelais mit stromabhängiger Auslösung
CH540587A (de) * 1972-08-22 1973-08-15 Sprecher & Schuh Ag Schaltungsanordnung, welche ein von elektrischen Verlusten abhängiges thermisches Abbild eines elektrischen Betriebsmittels darstellt
US3845354A (en) * 1973-05-21 1974-10-29 Gen Electric Canada Solid state thermal overload indicator

Also Published As

Publication number Publication date
JPS5276980A (en) 1977-06-28
US4072997A (en) 1978-02-07
DE2651050A1 (de) 1977-06-23
FR2335975A1 (fr) 1977-07-15
GB1534569A (en) 1978-12-06
FR2335975B3 (OSRAM) 1979-08-17

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