GB800992A - Improvements in or relating to electrical apparatus - Google Patents

Improvements in or relating to electrical apparatus

Info

Publication number
GB800992A
GB800992A GB3588753A GB3588753A GB800992A GB 800992 A GB800992 A GB 800992A GB 3588753 A GB3588753 A GB 3588753A GB 3588753 A GB3588753 A GB 3588753A GB 800992 A GB800992 A GB 800992A
Authority
GB
United Kingdom
Prior art keywords
alumina
coil
molybdenum disilicide
layer
support
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
GB3588753A
Inventor
Charles Duncan Henry Webb
Stanley Albert Gibbons
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB3588753A priority Critical patent/GB800992A/en
Publication of GB800992A publication Critical patent/GB800992A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/325—Windings characterised by the shape, form or construction of the insulation for windings on salient poles, such as claw-shaped poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/30—Sealing
    • H01B17/303—Sealing of leads to lead-through insulators
    • H01B17/305—Sealing of leads to lead-through insulators by embedding in glass or ceramic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

800,992. Dynamo-electric machines; transformers and inductors. PLESSEY CO., Ltd. Dec. 23, 1954 [Dec. 24, 1953], No. 35887/53. Classes 35 and 38 (2). [Also in Group XXXVI] An electrical component comprises an insulating support of alumina in which a conductor of molybdenum disilicide is embedded, the parts being intimately bonded during a firing process. An elemental field coil for a motor (Fig. 9) comprises a backing layer 40 of molybdenum disilicide and a bonded layer 41 of alumina. A coil 43 of molybdenum disilicide is carried by an alumina support 44 and is provided with terminal spigots 45, 46. Spigot 46 passes through opening 48 in alumina layer 47 to contact the inner end of coil 49 carried by alumina support 50. A terminal spigot 51 projects from this coil which is covered by alumina 52. The layers are formed into an integral mass and the layer 40 can be braized to a support. A series of such coils can be assembled in slightly overlapping relation to form an annulus, appropriate connections being made between the terminal spigots. Each coil can be formed with a central recess for a magnetic core. The armature of a motor may be similarly made or a squirrel cage rotor can be formed from an alumina cylinder with a central shaft, the squirrel cage being made of rods and rings of molybdenum disilicide. A variable high-frequency transformer (Fig. 8) comprises an inner cylinder 33 of alumina, in which is embedded a helical conductor 34 of molybdenum disilicide, and an outer cylinder 36 with a winding 37. The coupling between the windings is varied by relative movement of the cylinders. Tappings 38 may be brazed to the windings. Specification 779,128, [Group II], is referred to.
GB3588753A 1953-12-24 1953-12-24 Improvements in or relating to electrical apparatus Expired GB800992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3588753A GB800992A (en) 1953-12-24 1953-12-24 Improvements in or relating to electrical apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3588753A GB800992A (en) 1953-12-24 1953-12-24 Improvements in or relating to electrical apparatus

Publications (1)

Publication Number Publication Date
GB800992A true GB800992A (en) 1958-09-03

Family

ID=10382639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3588753A Expired GB800992A (en) 1953-12-24 1953-12-24 Improvements in or relating to electrical apparatus

Country Status (1)

Country Link
GB (1) GB800992A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389215A (en) * 1966-03-04 1968-06-18 Gen Motors Corp High temperature alumina-to-niobium article
FR2393446A1 (en) * 1977-06-05 1978-12-29 Nat Lab High Energy Physics MULTI-SPINDLE VACUUM SUPPLY BUSHING THAT CAN BE COOKED
GB2140629A (en) * 1983-05-03 1984-11-28 Caterpillar Tractor Co Coil for electromagnetic apparatus
FR2566170A1 (en) * 1984-06-15 1985-12-20 Interaction Sa Transformer
EP0345916A1 (en) * 1988-06-07 1989-12-13 General Electric Company Submersible pump, parts thereof and methods of making the parts
GB2225905A (en) * 1988-10-20 1990-06-13 Hemscheidt Maschf Hermann Multipole connector for control devices in underground working
WO2019121048A1 (en) * 2017-12-20 2019-06-27 Siemens Aktiengesellschaft Winding assembly

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389215A (en) * 1966-03-04 1968-06-18 Gen Motors Corp High temperature alumina-to-niobium article
FR2393446A1 (en) * 1977-06-05 1978-12-29 Nat Lab High Energy Physics MULTI-SPINDLE VACUUM SUPPLY BUSHING THAT CAN BE COOKED
GB2140629A (en) * 1983-05-03 1984-11-28 Caterpillar Tractor Co Coil for electromagnetic apparatus
FR2566170A1 (en) * 1984-06-15 1985-12-20 Interaction Sa Transformer
EP0345916A1 (en) * 1988-06-07 1989-12-13 General Electric Company Submersible pump, parts thereof and methods of making the parts
GB2225905A (en) * 1988-10-20 1990-06-13 Hemscheidt Maschf Hermann Multipole connector for control devices in underground working
GB2225905B (en) * 1988-10-20 1993-05-05 Hemscheidt Maschf Hermann A multipole connector for control devices in underground working
WO2019121048A1 (en) * 2017-12-20 2019-06-27 Siemens Aktiengesellschaft Winding assembly
CN111480209A (en) * 2017-12-20 2020-07-31 西门子股份公司 Winding assembly
US11626242B2 (en) 2017-12-20 2023-04-11 Siemens Energy Global GmbH & Co. KG Winding assembly

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