FR884534A - Protection system for liquid-filled electrical devices, with load-dependent control unit - Google Patents

Protection system for liquid-filled electrical devices, with load-dependent control unit

Info

Publication number
FR884534A
FR884534A FR884534DA FR884534A FR 884534 A FR884534 A FR 884534A FR 884534D A FR884534D A FR 884534DA FR 884534 A FR884534 A FR 884534A
Authority
FR
France
Prior art keywords
load
liquid
control unit
protection system
electrical devices
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
Other languages
French (fr)
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.)
Hermes Patentverwertungs GmbH
Original Assignee
Hermes Patentverwertungs GmbH
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 Hermes Patentverwertungs GmbH filed Critical Hermes Patentverwertungs GmbH
Application granted granted Critical
Publication of FR884534A publication Critical patent/FR884534A/en
Expired legal-status Critical Current

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
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
    • 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
    • H01H35/40—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
FR884534D 1941-07-29 1942-07-28 Protection system for liquid-filled electrical devices, with load-dependent control unit Expired FR884534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE235371X 1941-07-29

Publications (1)

Publication Number Publication Date
FR884534A true FR884534A (en) 1943-08-19

Family

ID=5896513

Family Applications (1)

Application Number Title Priority Date Filing Date
FR884534D Expired FR884534A (en) 1941-07-29 1942-07-28 Protection system for liquid-filled electrical devices, with load-dependent control unit

Country Status (4)

Country Link
BE (1) BE446747A (en)
CH (1) CH235371A (en)
FR (1) FR884534A (en)
NL (1) NL59664C (en)

Also Published As

Publication number Publication date
BE446747A (en)
NL59664C (en)
CH235371A (en) 1944-11-30

Similar Documents

Publication Publication Date Title
FR974126A (en) Auxiliary device for sockets
FR884534A (en) Protection system for liquid-filled electrical devices, with load-dependent control unit
FR886160A (en) Cooling system for electrical devices
FR880554A (en) Elastic suspension device for velocipede
FR886230A (en) Support for electrical control and protection devices
FR937012A (en) Braking device for electric motors
CA399317A (en) Measuring device damping system
CH265320A (en) Device for the protection of electrical appliances.
CH219784A (en) Overvoltage protection device.
FR1205629A (en) Descent regulator brake, especially for lifting devices
DK61740C (en) Device at Headphone system.
CA398495A (en) Weighing device
FR904892A (en) Electrical oscillations control device
FR1189329A (en) Safety device for lifting devices, suitable for indicating an excess load
CH224761A (en) Cable monitoring device.
CH235134A (en) Protection device for electrical networks.
CH227248A (en) Encapsulated electrical installation device.
FR874567A (en) Device for AC disconnection
DK61267C (en) Protective device for high-voltage direct current transmission systems.
CH247077A (en) Securing device on screw connections.
AU115664B2 (en) Regulator system
CA400814A (en) Electric discharge device control system
FR938381A (en) Deformable conductor suspension device
CA387422A (en) Weighing device
CA397687A (en) Hydraulic system control device