JPS56123764A - Detecting method for induction motor of defective phase - Google Patents

Detecting method for induction motor of defective phase

Info

Publication number
JPS56123764A
JPS56123764A JP2539580A JP2539580A JPS56123764A JP S56123764 A JPS56123764 A JP S56123764A JP 2539580 A JP2539580 A JP 2539580A JP 2539580 A JP2539580 A JP 2539580A JP S56123764 A JPS56123764 A JP S56123764A
Authority
JP
Japan
Prior art keywords
induction motor
lpf4
amplitude
sound
phase defect
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
JP2539580A
Other languages
English (en)
Inventor
Masanori Tanaka
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP2539580A priority Critical patent/JPS56123764A/ja
Publication of JPS56123764A publication Critical patent/JPS56123764A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Induction Machinery (AREA)
  • Control Of Ac Motors In General (AREA)
JP2539580A 1980-02-29 1980-02-29 Detecting method for induction motor of defective phase Pending JPS56123764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2539580A JPS56123764A (en) 1980-02-29 1980-02-29 Detecting method for induction motor of defective phase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2539580A JPS56123764A (en) 1980-02-29 1980-02-29 Detecting method for induction motor of defective phase

Publications (1)

Publication Number Publication Date
JPS56123764A true JPS56123764A (en) 1981-09-29

Family

ID=12164695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2539580A Pending JPS56123764A (en) 1980-02-29 1980-02-29 Detecting method for induction motor of defective phase

Country Status (1)

Country Link
JP (1) JPS56123764A (ja)

Similar Documents

Publication Publication Date Title
JPS57169767A (en) Jam detecting device for copying machine
JPS599842B2 (ja) 回転体の損傷検出装置
US4444042A (en) Engine-knock detection method and apparatus
JPS56123764A (en) Detecting method for induction motor of defective phase
SE8009085L (sv) Datadetektionskrets for ett tasi-system
JPS56135128A (en) Knocking oscillation detection device
JPS5537226A (en) Overload monitor for cutting operation
JPS5692422A (en) Detecting device for oscillation of turbine-driven generator
JPS5510884A (en) Method of detecting looseness of winding for electric apparatus
JPS5764126A (en) Oscillation detecting apparatus
JPS56119359A (en) Discriminator of damage of tool
JPS56126764A (en) Detecting circuit for rotational angle signal
JPS5565052A (en) Damage detector for cutting tool
JPS57113380A (en) Stator core loss discriminating apparatus using 3rd higher harmonic component
JPS5739367A (en) Video signal normalizing circuit of sonar device
JPS5719654A (en) Crack sound signal measuring device
JPS55166487A (en) Variable speed motor
JPS5548558A (en) Damage detector for cutting tool
SU365553A1 (ru) ВСиССЮЗНЛЯ I
JPS561349A (en) Measuring method of propagation time of sound wave and finding position
SU637654A1 (ru) Электромагнитный дефектоскоп
DE3278795D1 (en) Power frequency detection system
JPS5672317A (en) Detector for knocking oscillation
SU838493A1 (ru) Устройство дл ударно-импульснойдиАгНОСТиКи пОдшипНиКОВ КАчЕНи
JPS56164927A (en) Flaw detector of gear