JPS5361846A - Method of controlling lowering speed in crane or the like withinduction motor - Google Patents

Method of controlling lowering speed in crane or the like withinduction motor

Info

Publication number
JPS5361846A
JPS5361846A JP13652976A JP13652976A JPS5361846A JP S5361846 A JPS5361846 A JP S5361846A JP 13652976 A JP13652976 A JP 13652976A JP 13652976 A JP13652976 A JP 13652976A JP S5361846 A JPS5361846 A JP S5361846A
Authority
JP
Japan
Prior art keywords
crane
lowering speed
withinduction
motor
controlling
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
JP13652976A
Other languages
Japanese (ja)
Inventor
Kazuo Oda
Ichiro Fukuwatari
Michihiro 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.)
Hitachi Kiden Kogyo Ltd
Original Assignee
Hitachi Kiden Kogyo 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 Kiden Kogyo Ltd filed Critical Hitachi Kiden Kogyo Ltd
Priority to JP13652976A priority Critical patent/JPS5361846A/en
Publication of JPS5361846A publication Critical patent/JPS5361846A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control And Safety Of Cranes (AREA)

Abstract

PURPOSE: To enable safely and rationally controlling the operation of a crane with three-phase induction motor by automatically controlling a DC brake in response to the load after the start at lowering speed controlling time of the crane.
COPYRIGHT: (C)1978,JPO&Japio
JP13652976A 1976-11-12 1976-11-12 Method of controlling lowering speed in crane or the like withinduction motor Pending JPS5361846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13652976A JPS5361846A (en) 1976-11-12 1976-11-12 Method of controlling lowering speed in crane or the like withinduction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13652976A JPS5361846A (en) 1976-11-12 1976-11-12 Method of controlling lowering speed in crane or the like withinduction motor

Publications (1)

Publication Number Publication Date
JPS5361846A true JPS5361846A (en) 1978-06-02

Family

ID=15177308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13652976A Pending JPS5361846A (en) 1976-11-12 1976-11-12 Method of controlling lowering speed in crane or the like withinduction motor

Country Status (1)

Country Link
JP (1) JPS5361846A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832008A (en) * 1971-08-25 1973-04-27
JPS4832011A (en) * 1971-08-27 1973-04-27
JPS4846815A (en) * 1971-10-19 1973-07-04
JPS507247A (en) * 1973-05-26 1975-01-24

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832008A (en) * 1971-08-25 1973-04-27
JPS4832011A (en) * 1971-08-27 1973-04-27
JPS4846815A (en) * 1971-10-19 1973-07-04
JPS507247A (en) * 1973-05-26 1975-01-24

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