IT1161859B - Dispositivo di protezione per apparecchi elettrici raffreddati a liquido senza mezzi di protezione - Google Patents

Dispositivo di protezione per apparecchi elettrici raffreddati a liquido senza mezzi di protezione

Info

Publication number
IT1161859B
IT1161859B IT19200/83A IT1920083A IT1161859B IT 1161859 B IT1161859 B IT 1161859B IT 19200/83 A IT19200/83 A IT 19200/83A IT 1920083 A IT1920083 A IT 1920083A IT 1161859 B IT1161859 B IT 1161859B
Authority
IT
Italy
Prior art keywords
protection
electrical appliances
liquid cooled
cooled electrical
protection device
Prior art date
Application number
IT19200/83A
Other languages
English (en)
Other versions
IT8319200A0 (it
IT8319200A1 (it
Inventor
Dietrich Kroll
Original Assignee
Barleben Elektromotoren
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 Barleben Elektromotoren filed Critical Barleben Elektromotoren
Publication of IT8319200A0 publication Critical patent/IT8319200A0/it
Publication of IT8319200A1 publication Critical patent/IT8319200A1/it
Application granted granted Critical
Publication of IT1161859B publication Critical patent/IT1161859B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/55—Oil reservoirs or tanks; Lowering means therefor
    • H01H33/555—Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/58—Thermally-sensitive members actuated due to thermally controlled change of magnetic permeability
    • H01H37/585—Thermally-sensitive members actuated due to thermally controlled change of magnetic permeability the switch being of the reed switch type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Housings And Mounting Of Transformers (AREA)
IT19200/83A 1982-04-21 1983-01-20 Dispositivo di protezione per apparecchi elettrici raffreddati a liquido senza mezzi di protezione IT1161859B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD23915182 1982-04-21

Publications (3)

Publication Number Publication Date
IT8319200A0 IT8319200A0 (it) 1983-01-20
IT8319200A1 IT8319200A1 (it) 1984-07-20
IT1161859B true IT1161859B (it) 1987-03-18

Family

ID=5538027

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19200/83A IT1161859B (it) 1982-04-21 1983-01-20 Dispositivo di protezione per apparecchi elettrici raffreddati a liquido senza mezzi di protezione

Country Status (2)

Country Link
DE (1) DE3248274A1 (it)
IT (1) IT1161859B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004008026B4 (de) * 2004-02-19 2008-06-05 Elektromotoren und Gerätebau Barleben GmbH Transformatoren-Schutzrelais

Also Published As

Publication number Publication date
IT8319200A0 (it) 1983-01-20
IT8319200A1 (it) 1984-07-20
DE3248274A1 (de) 1983-10-27

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