AT68679B - Control device for single or multi-phase motors controlled by brush displacement. - Google Patents
Control device for single or multi-phase motors controlled by brush displacement.Info
- Publication number
- AT68679B AT68679B AT68679DA AT68679B AT 68679 B AT68679 B AT 68679B AT 68679D A AT68679D A AT 68679DA AT 68679 B AT68679 B AT 68679B
- Authority
- AT
- Austria
- Prior art keywords
- control device
- phase motors
- motors controlled
- brush displacement
- brush
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 title 1
Landscapes
- Stopping Of Electric Motors (AREA)
- Control Of Multiple Motors (AREA)
Description
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Hubbewegung einleiten. Ist dagegen eine durchziehende Last vorhanden, so wird dieselbe, wie die praktische Erfahrung gezeigt hat, in diega Stellung der Bürsten schon so stark gebremst,
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NullsteHung übergehen und die Haltebremse zum Einfallen bringen kann, so dass die Last dann in der betreffenden Höhe festgehalten wird.
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rechts eine Verschiebung der Bürsten nach der Nullstellung zu hervorgebracht. Der Ständer wird eingeschaltet, während sich die Bürsten noch im Hubsinne ausserhalb der Nullstellung befinden. Das entwickelte Drehmoment ist an dieser Stelle schon so gering, dass eine Hubwirkung nicht mehl'stattfinden kann.
Dagegen wird, falls eine durchziehende Last vorhanden ist, eine kräftige Bremswirkung erzielt. Diese kann durch weiteres Auslegen des Hebels nach rechts beliebig herabgesetzt werden, bis sie schliesslich in der Motor-Nullstellung den Wert 0 erreicht.
Bei Weiterverscmebung des Steuerhebels und damit der Bürsten gelangt man in das Gebiet des Frischstromsenkens und der Motor entwickelt alsdann ein Drehmoment im Senksinne.
Selbstverständlich lässt sich diese Schaltung nicht nur bei Hubwerken verwenden, sondern auch überall da, wo die Belastung des Motors den Rotor nur in einem bestimmten Drehsinne antreiben kann, oder auch überall da, wo die Bewegung nur in einem bestimmten Drehsinne gebremst werden mu-u.
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Initiate lifting movement. If, on the other hand, there is a pulling load, it is, as practical experience has shown, braked so strongly in the position of the brush
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Move over to zero position and apply the holding brake so that the load is then held at the relevant height.
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right to bring about a shift of the brushes after the zero position. The stand is switched on while the brushes are still outside the zero position in the lifting direction. The torque developed at this point is already so low that a lifting effect cannot take place.
On the other hand, if there is a pulling load, a powerful braking effect is achieved. This can be reduced as required by moving the lever further to the right until it finally reaches the value 0 in the motor zero position.
If the control lever and thus the brushes are moved further, the area of the fresh current lowering is reached and the motor then develops a lowering torque.
Of course, this circuit can be used not only in hoists, but also wherever the load on the motor can only drive the rotor in a certain direction of rotation, or wherever the movement only has to be braked in a certain direction of rotation.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE68679X | 1913-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT68679B true AT68679B (en) | 1915-05-10 |
Family
ID=5634548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT68679D AT68679B (en) | 1913-01-17 | 1913-12-27 | Control device for single or multi-phase motors controlled by brush displacement. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT68679B (en) |
-
1913
- 1913-12-27 AT AT68679D patent/AT68679B/en active
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