JPS57173765A - Insulation resistance measuring device for field winding of rotating electric machine - Google Patents

Insulation resistance measuring device for field winding of rotating electric machine

Info

Publication number
JPS57173765A
JPS57173765A JP5783681A JP5783681A JPS57173765A JP S57173765 A JPS57173765 A JP S57173765A JP 5783681 A JP5783681 A JP 5783681A JP 5783681 A JP5783681 A JP 5783681A JP S57173765 A JPS57173765 A JP S57173765A
Authority
JP
Japan
Prior art keywords
field winding
field
insulation resistance
insulation
voltage
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
JP5783681A
Other languages
Japanese (ja)
Inventor
Kenji Teraguchi
Toshitaka Suzuki
Toshihiro Jitsumatsu
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 JP5783681A priority Critical patent/JPS57173765A/en
Publication of JPS57173765A publication Critical patent/JPS57173765A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)

Abstract

PURPOSE:To make it possible to measure easily the insulation resistance of a field wind ing during operation as well by applying DC through a field winding and detecting each of leaking currents between the positive sides of the field voltage, field current, and field winding and the earth. CONSTITUTION:A closed circuit is formed by the insulation resistor and drop position X an insulation resistor 3-earth-a leak current detector 7-a changeover switch 6-the positive terminal of a field winding 1-the insulation resistance drop position X, the circuit voltage of which is the voltage E1 between the insulation resistance dropping position X of the field winding 1 and the positive terminal upon throwing in a change-over switch 6 to the positive side of the field winding, and leakage current I01 that flows in this closed circuit is detected. Next, the change-over switch 6 is thrown in to the negative side of the field winding and leakage current I02 is detected in the same way. Each of leakage currents I01 and I02 and the outputs of a field voltage detector 4 and a field current detector 5 are input to a calculator 9 through an input device 8, and the value Rm of the insulation resistor 3 and each of the resistance values between the insulation resistance dropping position X of the field winding and the terminal on the positive side and between the position X and the terminal on the negative side are calculated.
JP5783681A 1981-04-18 1981-04-18 Insulation resistance measuring device for field winding of rotating electric machine Pending JPS57173765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5783681A JPS57173765A (en) 1981-04-18 1981-04-18 Insulation resistance measuring device for field winding of rotating electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5783681A JPS57173765A (en) 1981-04-18 1981-04-18 Insulation resistance measuring device for field winding of rotating electric machine

Publications (1)

Publication Number Publication Date
JPS57173765A true JPS57173765A (en) 1982-10-26

Family

ID=13067032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5783681A Pending JPS57173765A (en) 1981-04-18 1981-04-18 Insulation resistance measuring device for field winding of rotating electric machine

Country Status (1)

Country Link
JP (1) JPS57173765A (en)

Cited By (9)

* 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
US4540922A (en) * 1983-03-21 1985-09-10 Automeg, Inc. Motor winding leakage monitor
JPS61258646A (en) * 1985-05-13 1986-11-17 Kawasaki Steel Corp On-line insulation resistance measuring device of dc motor
JPS61258645A (en) * 1985-05-13 1986-11-17 Kawasaki Steel Corp On-line insulation resistance measuring device of dc motor
JPS61262048A (en) * 1985-05-13 1986-11-20 Kawasaki Steel Corp Earth current detector for dc motor
JPS6331448A (en) * 1986-07-23 1988-02-10 Hitachi Ltd Equipment for diagnosting abnormality in rotor winding of electrical rotating machine
JP2007298330A (en) * 2006-04-28 2007-11-15 Fuji Electric Systems Co Ltd Method and device for measuring insulation resistance
WO2010150601A1 (en) * 2009-06-22 2010-12-29 新日本石油株式会社 Insulation resistance measurement device and insulation resistance measurement method
US9793854B2 (en) 2013-12-18 2017-10-17 Enphase Energy, Inc. Method and apparatus for ground fault detection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5027576A (en) * 1973-07-10 1975-03-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5027576A (en) * 1973-07-10 1975-03-20

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540922A (en) * 1983-03-21 1985-09-10 Automeg, Inc. Motor winding leakage monitor
JPS6068485U (en) * 1983-10-19 1985-05-15 株式会社荏原製作所 Submersible motor pump life detection device
JPS61258646A (en) * 1985-05-13 1986-11-17 Kawasaki Steel Corp On-line insulation resistance measuring device of dc motor
JPS61258645A (en) * 1985-05-13 1986-11-17 Kawasaki Steel Corp On-line insulation resistance measuring device of dc motor
JPS61262048A (en) * 1985-05-13 1986-11-20 Kawasaki Steel Corp Earth current detector for dc motor
JPS6331448A (en) * 1986-07-23 1988-02-10 Hitachi Ltd Equipment for diagnosting abnormality in rotor winding of electrical rotating machine
JP2007298330A (en) * 2006-04-28 2007-11-15 Fuji Electric Systems Co Ltd Method and device for measuring insulation resistance
JP4525630B2 (en) * 2006-04-28 2010-08-18 富士電機システムズ株式会社 Insulation resistance measuring method and apparatus
WO2010150601A1 (en) * 2009-06-22 2010-12-29 新日本石油株式会社 Insulation resistance measurement device and insulation resistance measurement method
JP2011002417A (en) * 2009-06-22 2011-01-06 Jx Nippon Oil & Energy Corp Instrument and method for measuring insulation resistance
US8860430B2 (en) 2009-06-22 2014-10-14 Jx Nippon Oil & Energy Corporation Insulation resistance measurement device and insulation resistance measurement method
US9793854B2 (en) 2013-12-18 2017-10-17 Enphase Energy, Inc. Method and apparatus for ground fault detection

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