How can the direction of rotation of the series motor be changed?
Contents
How can the rotation direction of the series motor be changed?
In DC series motor, rotor and pole windings are connected in series. For this reason, the structure of the series engine is similar to the structure of the series dynamo. The serial engine can work both as a dynamo and as a motor. Only when changing from dynamo to motor, the connection direction of the pole windings is changed for the same rotation direction.
How does the DC motor rotation direction change?
Changing the rotation direction of the DC motor for; It is necessary to change the direction of the current passing through the armature or excitation windings. The speed of the DC motor depends on the armature voltage and the magnetic flux created by the excitation winding.
What does armature mean?
Rotor The rotor is the part that carries the conductors and in which voltage is induced. The rotating part of DC motors is called armature (rotor). Mechanical energy is taken from the rotor shaft.
What is a shunt motor?
Shunt excited direct current motor is a DC motor whose field winding is connected in parallel to the armature winding. Its characteristic feature is that the number of revolutions does not change much with the load. Because of this feature, it is preferred where approximately constant speed is required.
What is the excitation resistance?Critical resistance value is the excitation circuit resistance where the generator starts to generate voltage by itself. This resistance can be seen during the experiment. When the excitation resistance is kept constant at one value, it is seen that the pole voltage rises spontaneously. This resistance is called “critical resistance”.
How does the motor speed change in case of an increase in the excitation current?
The decrease in the excitation current causes a decrease in the main pole area and an increase in the number of revolutions. The increase in the excitation current causes the main pole area to increase and the number of revolutions to decrease. As you can see, in shunt motors, the number of revolutions can be adjusted by adjusting the excitation current.
How do we know if the motor is broken?
It is relatively easier to understand whether your own vehicle's engine is finished or not, than when buying a new vehicle. First of all, the most well-known method is to burn oil in your vehicle. If the vehicle is burning oil, it may be a sign that the engine is dead. Jerky and irregular running may also indicate that the engine is finished.
Why does the engine of the car burn?
Even one of the fuel, ignition, air intake and exhaust systems that make up the engine is damaged. the engine warning lights start to come on. We can list the damage areas that cause the malfunction lamp to come on as follows: Air flow sensor (MAF) Oxygen (Lambda) sensor
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