GB945721A - An installation comprising an electric motor and control means therefor - Google Patents
An installation comprising an electric motor and control means thereforInfo
- Publication number
- GB945721A GB945721A GB1746361A GB1746361A GB945721A GB 945721 A GB945721 A GB 945721A GB 1746361 A GB1746361 A GB 1746361A GB 1746361 A GB1746361 A GB 1746361A GB 945721 A GB945721 A GB 945721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- brake
- contactors
- motor
- installation
- control means
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
- B66C13/23—Circuits for controlling the lowering of the load
- B66C13/26—Circuits for controlling the lowering of the load by ac motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
- B66C2700/081—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists with ac motors
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
945,721. Control of A.C. motors. SIEMENS SHUCKERTWERKE A.G. May 12, 1961 [May 12, 1960], No. 17463/61. Heading H2J. An electromagnetic brake 10 on a hoist motor has an interlock switch 17 whereby the motor cannot be switched to any but its lowest speed until the brake is fully released. The motor is energized through reversing contactors 5, 6 and pole changing contactors 2, 3, 4, all operated by a drum type master controller 9. The energizing coils of contactors 5, 6 and 2 (providing slowest speed in either direction) are supplied from line 18, but those of 3 and 4 (for higher speeds) have the interlock switch 17 interposed. The brake is released when auxiliary contacts 15 or 16 on contactors 5, 6 complete the circuit of a brake magnet contactor 14. It is stated that the switch 17 also reduces the holding current through the brake magnet.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0068464 | 1960-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB945721A true GB945721A (en) | 1964-01-08 |
Family
ID=7500301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1746361A Expired GB945721A (en) | 1960-05-12 | 1961-05-12 | An installation comprising an electric motor and control means therefor |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE602636A (en) |
| CH (1) | CH384171A (en) |
| GB (1) | GB945721A (en) |
-
1961
- 1961-03-14 CH CH304861A patent/CH384171A/en unknown
- 1961-04-14 BE BE602636A patent/BE602636A/en unknown
- 1961-05-12 GB GB1746361A patent/GB945721A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH384171A (en) | 1964-11-15 |
| BE602636A (en) | 1961-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1479981A (en) | Elevator system | |
| GB945721A (en) | An installation comprising an electric motor and control means therefor | |
| GB642903A (en) | Improvements in or relating to apparatus for controlling and/or indicating variations in the thickness of material | |
| GB754066A (en) | Automatic load-dependent y-delta change-over system for electric induction motors | |
| GB958238A (en) | Control systems for electric motors | |
| GB1279578A (en) | Improvements in or relating to hoist motor control systems | |
| GB1177072A (en) | Improvements relating to Electric Motor Control Systems | |
| GB929357A (en) | Improvements in control gear for a.c. commutator motors | |
| GB567508A (en) | Improvements in or relating to electric motor controllers | |
| GB1116705A (en) | Improvements in or relating to the control of electric motors | |
| GB540962A (en) | Improvements in electric motor control systems | |
| GB1112846A (en) | Speed controlling system for induction motors | |
| GB604317A (en) | Improvements in electric motor control systems for cranes, hoists and the like | |
| GB1281474A (en) | Connection of electric contactors for controlling driving and auxiliary electric motors in circular knitting machines | |
| GB779140A (en) | Improvements in and relating to electric winders | |
| GB1357891A (en) | Electric motor control apparatus | |
| GB592289A (en) | Improvements in trolleybus electric motor control systems | |
| GB748449A (en) | Electrical controlling system | |
| GB546942A (en) | Improvements in and relating to electric motor control systems | |
| GB747687A (en) | Improvements in and relating to motor equipment for electrically driven winding and like gear | |
| GB843791A (en) | Improvements in or relating to control gear for electric winches, capstans and the like | |
| GB949281A (en) | Improvements in and relating to electric switching systems | |
| GB576123A (en) | Improvements in the control of compound motors used for rheostatic braking | |
| GB739401A (en) | Improvements relating to electric motors | |
| GB568202A (en) | Improvements in or relating to electric motor control systems |