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JPS5762798A - Three-phase induction motor speed control device - Google Patents

Three-phase induction motor speed control device

Info

Publication number
JPS5762798A
JPS5762798A JP55136717A JP13671780A JPS5762798A JP S5762798 A JPS5762798 A JP S5762798A JP 55136717 A JP55136717 A JP 55136717A JP 13671780 A JP13671780 A JP 13671780A JP S5762798 A JPS5762798 A JP S5762798A
Authority
JP
Japan
Prior art keywords
speed
generating device
signal
changeover
ratio
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
JP55136717A
Other languages
Japanese (ja)
Inventor
Nobuyuki Yamazaki
Itaro Yoshida
Hiroaki Azuma
Aritsune Kondo
Tsuneo Nagahama
Haruyoshi Kitayoshi
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.)
Tsubakimoto Chain Co
Original Assignee
Tsubakimoto Chain Co
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 Tsubakimoto Chain Co filed Critical Tsubakimoto Chain Co
Priority to JP55136717A priority Critical patent/JPS5762798A/en
Publication of JPS5762798A publication Critical patent/JPS5762798A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE:To shorten length of time for shifting form high-speed operation to low- speed operation, by switching the operation temporarily to a speed of a large-width control torque when making a changeover of the operation from the high speed to the low speed by thinned out power supply. CONSTITUTION:A mode changer F which changes an input signal of a six-cycle ring counter D from an output of a 1/n frequency divider C to an output signal of a reference signal generating device B, a dynamic braking device 1 which actuates an ignition phase adjuster G, a signal generating device E which sends out reference signals by phases having prescribed phasic difference with one cycle of (6n-1)/2[or (6n+1)/2]of a power source voltage, and a poulse generating device H which generates an ignition pulse from a logic product of this reference signal and an ignition phase adjusting signal are all provided. And, after speed of an electric motor is reduced form 1/5(1/7) ratio to 1/11(1/13) ratio of the rated speed by changeover of the mode changer F, it is stopped by the dynamic braking.
JP55136717A 1980-10-02 1980-10-02 Three-phase induction motor speed control device Pending JPS5762798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55136717A JPS5762798A (en) 1980-10-02 1980-10-02 Three-phase induction motor speed control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55136717A JPS5762798A (en) 1980-10-02 1980-10-02 Three-phase induction motor speed control device

Publications (1)

Publication Number Publication Date
JPS5762798A true JPS5762798A (en) 1982-04-15

Family

ID=15181839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55136717A Pending JPS5762798A (en) 1980-10-02 1980-10-02 Three-phase induction motor speed control device

Country Status (1)

Country Link
JP (1) JPS5762798A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02114894A (en) * 1988-10-21 1990-04-26 Hitachi Ltd Controller for motor
US7913536B2 (en) * 2005-07-29 2011-03-29 Sensata Technologies Holland B.V. Compensation arrangement and method for operation thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02114894A (en) * 1988-10-21 1990-04-26 Hitachi Ltd Controller for motor
US7913536B2 (en) * 2005-07-29 2011-03-29 Sensata Technologies Holland B.V. Compensation arrangement and method for operation thereof

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