FR2270671A1 - Thermal overload protection cct for polyphase transformer - has electromagnetic relay actuated by bimetal strip sensitive to transformer oil temp - Google Patents

Thermal overload protection cct for polyphase transformer - has electromagnetic relay actuated by bimetal strip sensitive to transformer oil temp

Info

Publication number
FR2270671A1
FR2270671A1 FR7416149A FR7416149A FR2270671A1 FR 2270671 A1 FR2270671 A1 FR 2270671A1 FR 7416149 A FR7416149 A FR 7416149A FR 7416149 A FR7416149 A FR 7416149A FR 2270671 A1 FR2270671 A1 FR 2270671A1
Authority
FR
France
Prior art keywords
transformer
cct
electromagnetic relay
overload protection
thermal overload
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.)
Granted
Application number
FR7416149A
Other languages
English (en)
French (fr)
Other versions
FR2270671B1 (ref
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Priority to FR7416149A priority Critical patent/FR2270671A1/fr
Publication of FR2270671A1 publication Critical patent/FR2270671A1/fr
Application granted granted Critical
Publication of FR2270671B1 publication Critical patent/FR2270671B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H02H5/06—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature in oil-filled electric apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/004—Thermally-actuated switches with thermal image
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/404—Protective devices specially adapted for fluid filled transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/406—Temperature sensor or protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Transformers (AREA)
  • Regulation Of General Use Transformers (AREA)
FR7416149A 1974-05-09 1974-05-09 Thermal overload protection cct for polyphase transformer - has electromagnetic relay actuated by bimetal strip sensitive to transformer oil temp Granted FR2270671A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7416149A FR2270671A1 (en) 1974-05-09 1974-05-09 Thermal overload protection cct for polyphase transformer - has electromagnetic relay actuated by bimetal strip sensitive to transformer oil temp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7416149A FR2270671A1 (en) 1974-05-09 1974-05-09 Thermal overload protection cct for polyphase transformer - has electromagnetic relay actuated by bimetal strip sensitive to transformer oil temp

Publications (2)

Publication Number Publication Date
FR2270671A1 true FR2270671A1 (en) 1975-12-05
FR2270671B1 FR2270671B1 (ref) 1976-12-24

Family

ID=9138655

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7416149A Granted FR2270671A1 (en) 1974-05-09 1974-05-09 Thermal overload protection cct for polyphase transformer - has electromagnetic relay actuated by bimetal strip sensitive to transformer oil temp

Country Status (1)

Country Link
FR (1) FR2270671A1 (ref)

Also Published As

Publication number Publication date
FR2270671B1 (ref) 1976-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse