DE277652C - - Google Patents
Info
- Publication number
- DE277652C DE277652C DENDAT277652D DE277652DA DE277652C DE 277652 C DE277652 C DE 277652C DE NDAT277652 D DENDAT277652 D DE NDAT277652D DE 277652D A DE277652D A DE 277652DA DE 277652 C DE277652 C DE 277652C
- Authority
- DE
- Germany
- Prior art keywords
- positions
- brake
- lowering
- switch
- contactor
- 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.)
- Active
Links
- 230000000694 effects Effects 0.000 claims description 3
- 230000036633 rest Effects 0.000 description 2
- 230000000881 depressing Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000414 obstructive Effects 0.000 description 1
- 239000002965 rope Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE277652C true DE277652C (fr) |
Family
ID=533730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT277652D Active DE277652C (fr) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE277652C (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE945772C (de) * | 1952-07-25 | 1956-07-19 | Bbc Brown Boveri & Cie | Elektrische Bremseinrichtung fuer Drehstrom-Asynchronmotoren |
| DE1059643B (de) * | 1953-05-18 | 1959-06-18 | Siemens Ag | Bremseinrichtung fuer Hebezeuge, die durch einen Drehstrommotor angetrieben werden, der von einem Netz normaler Frequenz auf ein Netz niederer Frequenz umschaltbar ist |
-
0
- DE DENDAT277652D patent/DE277652C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE945772C (de) * | 1952-07-25 | 1956-07-19 | Bbc Brown Boveri & Cie | Elektrische Bremseinrichtung fuer Drehstrom-Asynchronmotoren |
| DE1059643B (de) * | 1953-05-18 | 1959-06-18 | Siemens Ag | Bremseinrichtung fuer Hebezeuge, die durch einen Drehstrommotor angetrieben werden, der von einem Netz normaler Frequenz auf ein Netz niederer Frequenz umschaltbar ist |
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