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 motorInfo
- 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
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
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)
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 |
-
1976
- 1976-11-12 JP JP13652976A patent/JPS5361846A/en active Pending
Patent Citations (4)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS52135150A (en) | Anti-oscillation control apparatus of jib crane | |
JPS5361846A (en) | Method of controlling lowering speed in crane or the like withinduction motor | |
JPS538956A (en) | Method for preventing bucket from closing in crane with bucket | |
JPS5327945A (en) | Apparatus for use with lifting machine to prevent fall of suspended cargo | |
JPS53142750A (en) | Method of detecting landing of hung load of crane, etc. | |
JPS52109055A (en) | Hydraulic turbine output controller | |
JPS52103158A (en) | Speed control device for motor of winch | |
JPS5322249A (en) | Crane controller | |
JPS53112414A (en) | Starter for squirrel-cage induction motor | |
JPS52114935A (en) | Controller of tranducer on ac-dc pararell power trnsmission system | |
JPS5337813A (en) | Group operation controller for induction motors | |
JPS5330572A (en) | Method and device for reversing structure | |
JPS51143825A (en) | Control apparatus for induction motors | |
JPS52101411A (en) | Induction motor controller | |
JPS5266249A (en) | System for controlling elevator | |
JPS5320251A (en) | Speed control system for elevator for use at time of interruption of current supply | |
JPS53143915A (en) | Controller for induction motor | |
JPS51129648A (en) | Power converter control system | |
JPS5389929A (en) | Driver for induction motor | |
JPS53111423A (en) | Inverter starter | |
JPS5435317A (en) | Dc braking system for induction motor | |
JPS52129144A (en) | Article pull-down method from crane at failure of electricity | |
JPS51129621A (en) | Controlling method for sertes inverter | |
JPS5337809A (en) | Ac motor speed controller | |
JPS54138261A (en) | Speed controlling apparatus for induction motor used in hoisting machine |