JPS5774673A - Revolving armature field winding abnormality inspecting device - Google Patents

Revolving armature field winding abnormality inspecting device

Info

Publication number
JPS5774673A
JPS5774673A JP15187180A JP15187180A JPS5774673A JP S5774673 A JPS5774673 A JP S5774673A JP 15187180 A JP15187180 A JP 15187180A JP 15187180 A JP15187180 A JP 15187180A JP S5774673 A JPS5774673 A JP S5774673A
Authority
JP
Japan
Prior art keywords
field
abnormality
winding
insulation resistance
field winding
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
JP15187180A
Other languages
Japanese (ja)
Inventor
Kenji Teraguchi
Toshitaka Suzuki
Toshihiro Jitsumatsu
Ikuo Miyashita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15187180A priority Critical patent/JPS5774673A/en
Publication of JPS5774673A publication Critical patent/JPS5774673A/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)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

PURPOSE:to ensure monitoring of insulation resistance of field winding and inspection of abnormality, by executing an abnormality inspection by operating calculation of insulation resistance of a field circuit using leak current which occurs in case if changeover impression of DC current is made to positive side and negative side of the field circuit. CONSTITUTION:Positive side and negative side of a field winding 1 of a turbine generator, etc. are impressed with DC voltage from a DC power source 6 connected to a changeover switch 5. leak currents I01 and I02 which then pass through the winding 1 and an insulation resistance 3 of the winding 1, are detected by a leak current detector 7 and impressed onto an input device 8 of an operation indicating unit 30 to which a field voltage e by a field voltage detector 4 is added. And, by conducting an operation by an operating and inspecting system 9 and on the basis of equation I, a resistance value RM of the resistance 3 is calculated, and at the same time, a determination is made by comparing the calculated value with a set value, and this is indicated on an indicator 10 at the time of occurrence of an abnormality. It is possible, by employing this mechanism, to ensure monitoring of insulation resistance of field winding and detection of abnormality.
JP15187180A 1980-10-28 1980-10-28 Revolving armature field winding abnormality inspecting device Pending JPS5774673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15187180A JPS5774673A (en) 1980-10-28 1980-10-28 Revolving armature field winding abnormality inspecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15187180A JPS5774673A (en) 1980-10-28 1980-10-28 Revolving armature field winding abnormality inspecting device

Publications (1)

Publication Number Publication Date
JPS5774673A true JPS5774673A (en) 1982-05-10

Family

ID=15528031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15187180A Pending JPS5774673A (en) 1980-10-28 1980-10-28 Revolving armature field winding abnormality inspecting device

Country Status (1)

Country Link
JP (1) JPS5774673A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068485U (en) * 1983-10-19 1985-05-15 株式会社荏原製作所 Submersible motor pump life detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6068485U (en) * 1983-10-19 1985-05-15 株式会社荏原製作所 Submersible motor pump life detection device

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