JPS53139119A - Speed control system for three-phase induction motor in hoist use - Google Patents

Speed control system for three-phase induction motor in hoist use

Info

Publication number
JPS53139119A
JPS53139119A JP5392677A JP5392677A JPS53139119A JP S53139119 A JPS53139119 A JP S53139119A JP 5392677 A JP5392677 A JP 5392677A JP 5392677 A JP5392677 A JP 5392677A JP S53139119 A JPS53139119 A JP S53139119A
Authority
JP
Japan
Prior art keywords
speed control
induction motor
phase induction
control system
hoist
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
JP5392677A
Other languages
Japanese (ja)
Inventor
Shizuo Sasa
Sukehisa Noda
Kunihiko Kusada
Shinji Enoshima
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 JP5392677A priority Critical patent/JPS53139119A/en
Publication of JPS53139119A publication Critical patent/JPS53139119A/en
Pending legal-status Critical Current

Links

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  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To reduce an amount of loss, with a speed control operated by varying a voltage applied to the motor, when in a range with three-phase induction motor used for hoist operating a hoist down at a speed exceeding the synchronous speed, that is, when in a range of regenerative braking.
COPYRIGHT: (C)1978,JPO&Japio
JP5392677A 1977-05-10 1977-05-10 Speed control system for three-phase induction motor in hoist use Pending JPS53139119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5392677A JPS53139119A (en) 1977-05-10 1977-05-10 Speed control system for three-phase induction motor in hoist use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5392677A JPS53139119A (en) 1977-05-10 1977-05-10 Speed control system for three-phase induction motor in hoist use

Publications (1)

Publication Number Publication Date
JPS53139119A true JPS53139119A (en) 1978-12-05

Family

ID=12956317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5392677A Pending JPS53139119A (en) 1977-05-10 1977-05-10 Speed control system for three-phase induction motor in hoist use

Country Status (1)

Country Link
JP (1) JPS53139119A (en)

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