Advantage of microprocessor- Data movement is possible by using microprocessor i.e. Transfer data, Email, receiving data, copy of data etc. Speed is more. By using microprocessor multiple tasks can be possible. Application of microprocessor- Microprocessor is used in industry. In automatic control system microcontroller can be use. Car automation. Telecommunication Biometric Radar Entertainment system etc.
Frequency of rotor current- When the rotor is stationary, rotor conductor is being cut by the rotating flux at NS. So the frequency of rotor current is same as the slip. But when conductor is started rotating, the frequency of rotor current depends on the relative speed between NS and N. We know that, NS=120f/P For Rotor – … Read More »
In this type of rotor, a large no of rotor terms is used which increases the secondary voltage and reduces the current that flows through the slip rings. The rotor windings may be start or delta connected but the star connection is more preferable. The 3 finished terminals are connected together to form a star point. The other… Read More »
Why starter is use- At the time of starting the motor draws 4 to 5 times of the rated current of the motor. For which because of maximum current at the starting the winding may burn. To reduce the starting current of the motor starter is used. The starter should be connected in between source to load and… Read More »
Slip- Whenever 3 supply is given to the stator RMF will be developed around the rotor. Since the supply is constant so RMF speed is constant and is known as synchronous speed(NS).If the rotor rotates at synchronous speed flux linkage will be zero. So the rotor rotates just below the synchronous speed and is named as rotor speed(N).… Read More »