GB767919A - Winding protection for coils - Google Patents

Winding protection for coils

Info

Publication number
GB767919A
GB767919A GB12432/55A GB1243255A GB767919A GB 767919 A GB767919 A GB 767919A GB 12432/55 A GB12432/55 A GB 12432/55A GB 1243255 A GB1243255 A GB 1243255A GB 767919 A GB767919 A GB 767919A
Authority
GB
United Kingdom
Prior art keywords
screens
heavy
coil
load current
carry
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
GB12432/55A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB767919A publication Critical patent/GB767919A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B66D1/16—Power transmissions between power sources and drums or barrels the drums or barrels being freely rotatable, e.g. having a clutch activated independently of a brake
    • B66D1/18—Power transmissions between power sources and drums or barrels the drums or barrels being freely rotatable, e.g. having a clutch activated independently of a brake and the power being transmitted from a continuously operating and irreversible prime mover, i.e. an internal combustion engine, e.g. on a motor vehicle or a portable winch
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/02—Travelling-gear, e.g. associated with slewing gears
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/202—Mechanical transmission, e.g. clutches, gears
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions
    • 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
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

767,919. Electric coils. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. April 29, 1955 [May 8, 1954], No. 12432/55. Class 35. A coil 1 is protected from surges by means of lightly insulated heavy gauge screens 7, 10, connected to its terminals and interposed between the coil and its magnetic core 2. The surge temporarily pierces the light insulation 11, 13, and being of heavy metal, the screen is not readily burnt by the ensuing arc. As shown, the screens consist of sheets of metal wrapped round so as to overlap and do not carry any significant load current, but in a modification the inner and outer layers of turns are of heavy strip which do carry load current. The screens may be of a material resistant to melting.
GB12432/55A 1954-05-08 1955-04-29 Winding protection for coils Expired GB767919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1243255X 1954-05-08

Publications (1)

Publication Number Publication Date
GB767919A true GB767919A (en) 1957-02-06

Family

ID=43980056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12432/55A Expired GB767919A (en) 1954-05-08 1955-04-29 Winding protection for coils

Country Status (5)

Country Link
CH (1) CH340277A (en)
DE (1) DE1027784B (en)
DK (1) DK90811C (en)
FR (1) FR1133864A (en)
GB (1) GB767919A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1901793C3 (en) * 1969-01-15 1973-01-11 Licentia Gmbh Arrangement for shielding high-frequency pulses in mains frequency transformers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1833221A (en) * 1929-12-30 1931-11-24 Chicago Transformer Corp Electrostatically shielded transformer coil windings and method of making the same
US2222729A (en) * 1936-12-05 1940-11-26 Gen Electric Resin-containing composite structure

Also Published As

Publication number Publication date
CH340277A (en) 1959-08-15
DK90811C (en) 1961-05-01
FR1133864A (en) 1957-04-03
DE1027784B (en) 1958-04-10

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