IT1068331B - THERMALLY PROTECTED DIFFERENTIAL CURRENT PROTECTION SWITCH - Google Patents

THERMALLY PROTECTED DIFFERENTIAL CURRENT PROTECTION SWITCH

Info

Publication number
IT1068331B
IT1068331B IT2743076A IT2743076A IT1068331B IT 1068331 B IT1068331 B IT 1068331B IT 2743076 A IT2743076 A IT 2743076A IT 2743076 A IT2743076 A IT 2743076A IT 1068331 B IT1068331 B IT 1068331B
Authority
IT
Italy
Prior art keywords
current protection
protection switch
differential current
thermally protected
protected differential
Prior art date
Application number
IT2743076A
Other languages
Italian (it)
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
Application granted granted Critical
Publication of IT1068331B publication Critical patent/IT1068331B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/142—Electrothermal mechanisms actuated due to change of magnetic permeability
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages with differential transformer

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
IT2743076A 1975-09-25 1976-09-21 THERMALLY PROTECTED DIFFERENTIAL CURRENT PROTECTION SWITCH IT1068331B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2542887 1975-09-25

Publications (1)

Publication Number Publication Date
IT1068331B true IT1068331B (en) 1985-03-21

Family

ID=5957459

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2743076A IT1068331B (en) 1975-09-25 1976-09-21 THERMALLY PROTECTED DIFFERENTIAL CURRENT PROTECTION SWITCH

Country Status (3)

Country Link
JP (1) JPS5241876A (en)
FR (1) FR2326028A1 (en)
IT (1) IT1068331B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731630Y2 (en) * 1978-12-27 1982-07-12
DE3022168A1 (en) * 1980-06-13 1981-12-24 Schupa Elektro-GmbH + Co KG, 5885 Schalksmühle TEMPERATURE COMPENSATION FOR HIGH-SENSITIVE PERMANENT MAGNETIC ADAPTER RELAY
JPH0440953Y2 (en) * 1986-09-08 1992-09-25

Also Published As

Publication number Publication date
JPS5241876A (en) 1977-03-31
JPS5611979B2 (en) 1981-03-18
FR2326028A1 (en) 1977-04-22

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