JPS55150761A - Preparation of armature winding - Google Patents

Preparation of armature winding

Info

Publication number
JPS55150761A
JPS55150761A JP5860479A JP5860479A JPS55150761A JP S55150761 A JPS55150761 A JP S55150761A JP 5860479 A JP5860479 A JP 5860479A JP 5860479 A JP5860479 A JP 5860479A JP S55150761 A JPS55150761 A JP S55150761A
Authority
JP
Japan
Prior art keywords
slot
varnish
insulator
height
expansion member
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.)
Pending
Application number
JP5860479A
Other languages
Japanese (ja)
Inventor
Takahiro Kawasaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5860479A priority Critical patent/JPS55150761A/en
Publication of JPS55150761A publication Critical patent/JPS55150761A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE:To prevent varnish in an armature winding from flowing out for improving its insulation characteristic by reducing the height of the U-shaped insulator in the slot by a specified ratio, and expanding an expansion member placed between the insulator and the slot bottom, before performing varnish impregnation. CONSTITUTION:The height (B) of an U-shaped insulator 3 in the slot is made 10%-40% shorter than the height (A) of the slot shoulder. A sheet of thermal expansion member 6 is placed between the insulator 3 and the slot bottom 2b. After random coils 4 are mounted, the expansion member 6 is expanded in the preliminary drying process of the ion core in order to push up the random coils 4 to the slot opening 2a side. Then, the slot 2 is impregnated with varnish to fill up space 7. Thus, the reduced space 7 prevents varnish from flowing out, so that the insulation characteristic can be improved. In addition, the reduced leakage magnetic-flux permits leakage reactance to be smaller, so that the electrical characteristic can be improved.
JP5860479A 1979-05-15 1979-05-15 Preparation of armature winding Pending JPS55150761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5860479A JPS55150761A (en) 1979-05-15 1979-05-15 Preparation of armature winding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5860479A JPS55150761A (en) 1979-05-15 1979-05-15 Preparation of armature winding

Publications (1)

Publication Number Publication Date
JPS55150761A true JPS55150761A (en) 1980-11-22

Family

ID=13089114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5860479A Pending JPS55150761A (en) 1979-05-15 1979-05-15 Preparation of armature winding

Country Status (1)

Country Link
JP (1) JPS55150761A (en)

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