JPS5759177A - Method for diagosing insulation of revolving electric machine - Google Patents

Method for diagosing insulation of revolving electric machine

Info

Publication number
JPS5759177A
JPS5759177A JP13460480A JP13460480A JPS5759177A JP S5759177 A JPS5759177 A JP S5759177A JP 13460480 A JP13460480 A JP 13460480A JP 13460480 A JP13460480 A JP 13460480A JP S5759177 A JPS5759177 A JP S5759177A
Authority
JP
Japan
Prior art keywords
insulation
coil
layers
shielding layers
slot
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
JP13460480A
Other languages
Japanese (ja)
Inventor
Isao Tani
Kichiji Kaneda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13460480A priority Critical patent/JPS5759177A/en
Publication of JPS5759177A publication Critical patent/JPS5759177A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/346—Testing of armature or field windings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Relating To Insulation (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

PURPOSE:To improve the reliability of the insulation diagnosis for stator coils by parting electrically the low resistance corona shielding layers of the stator coil of a high voltage revolving electric machine in a prescribed part, and diagnosing the insulation. CONSTITUTION:Cut grooves 7 are made in the low resistance corona shielding layers 6 in the coil end part projecting to the outside from the slot 2 of the iron core 1 of a stator coil 3, over the entire circumference of the coil 3, to insulate the shielding layers 6 of the part in the slot 2 and the shielding layers 6-a, 6-b in the coil end parts of the outside of the slot 2 electrically. Hence, with only the layers 6-a and 6-b of the parts reaching the involute part from the coil end part as an electrode on the low voltage side, the insulation characteristics of the main insultion layers with respect to the electrode on the low voltage side are measured.
JP13460480A 1980-09-26 1980-09-26 Method for diagosing insulation of revolving electric machine Pending JPS5759177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13460480A JPS5759177A (en) 1980-09-26 1980-09-26 Method for diagosing insulation of revolving electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13460480A JPS5759177A (en) 1980-09-26 1980-09-26 Method for diagosing insulation of revolving electric machine

Publications (1)

Publication Number Publication Date
JPS5759177A true JPS5759177A (en) 1982-04-09

Family

ID=15132278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13460480A Pending JPS5759177A (en) 1980-09-26 1980-09-26 Method for diagosing insulation of revolving electric machine

Country Status (1)

Country Link
JP (1) JPS5759177A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009092527A (en) * 2007-10-10 2009-04-30 Denso Corp Method of inspecting insulation of stator winding in rotary electric machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009092527A (en) * 2007-10-10 2009-04-30 Denso Corp Method of inspecting insulation of stator winding in rotary electric machine

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