In DC motor with independent excitation changes the polarity of the induced. In the series excitati

The DC generators have a much broader, as are used in power, own homes or small appliances. Below we show a number of specific applications:
There are several rotor coils copper wire mounted on a rotating axis. This area contains the manifold, gabriela where the coils are connected to a thin copper sheets called slats. Pieces fixed brushes make contact with the slats and so they send electric current to the coils rotòriques.
Its operation is the inverse of the dynamo: In a circular flow to each side of the rotor coil, forms a magnetic field around it. This field is the magnetic poles of the stator and, as a result of this, there are forces that force the rotor coil to move.
In DC motor with independent excitation changes the polarity of the induced. In the series excitation, the polarity of the coil and the induced excitation. Shunt engine changes the polarity of the excitation coil.
At boot time, the counter-force is zero, so that if you decrease the voltage will damage induced. To reduce tension and thus adjust the intensity of the current flowing, using a rheostat starter. The starting rheostat should be connected in series with the induced. The rheostat resistance was reduced gabriela progressively as increasing counter-force, always the limiting current values.
The motor speed is directly proportional to the applied voltage and inversely proportional to the induced magnetic flux inductor. If the voltage decreases or increases the magnetic flux (increasing the current in the inductor windings) decrease engine speed. Increasing tension and decreases the magnetic flux then the speed will increase.
Subscribe to: Post Comments (Atom)
2014 (7) February (7) 1. 2 Electric Motors. Electric generator DC: The Din ... 3. Electric generator AC: The Alter ... 4. Motors of direct gabriela current (DC) 5. engines gabriela alternating current (AC) 6. universal motors 7. Stepper motor