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Induction motors run at sub synchronous speeds because the slip (difference between synchronous and actual speed) causes, or controls the electric field strength in the motor. As more load is put on the motor, the motor's speed decreases, increasing slip, and increasing the electric field strength.
What else can I help you with?
Do you need starter for 0.5HP three phase induction motor?
You never need a starter for a three-phase motor.
Why induction motor speed is always less then synchronous speed?
induction motor never runs at synchronous speed, if it does so there would not be any relative speed between stator flux and rotor and no emf will induce in rotor and we can not apply motor principle as we need current carrying conductor in magnetic field.
How can an induction motor act as perpetual motion machine?
Perpetual motion machines are an impossibility. Energy conversion is never 100% efficient. Even if it were, friction is never zero.
Why an induction motor will never run at synhoronous speed?
An induction motor relies on low-frequency currents induced in the rotor by the difference in speed between the rotor and the rotating magnetic field. At sychronous speed the induced current is zero therefore the torque is also zero.
How do you wire a three phase motor with capacitor start?
I have never come across a three phase capacitor start motor. Any three phase motors I have worked on are induction start.
What happens when ac is given to dc machine?
when we give d.c to an a.c motor i think there will not producing rotating magnatic field in case of induction motor so it never rotate and another dangeres issue is that there will burning of stator winding because constent flux producing in here so it does not link rotor winding
Why Single phase induction motor produces more noise as compaired to three three phase?
Never heard of this before. Any noise that comes from a motor is usually produced by faulty bearings, loose end bells or cooling fan becoming loose from the armature shaft. When a bearing fails the armature is allowed to drag on the stator and this produces noise and heat with motor winding failure not far behind if left unchecked. The overload protection should trip to try and save the motor but constant resetting will finally do the motor in.
What was Nikola Tesla's first invention and when did he build it?
At the 1893 World Exposition in Chicago, Tesla demonstrated the safety AC electricity was by passing high frequency AC power through his body to power light bulbs. He then was able to shoot large lightning bolts from his Tesla coils to the crowd without harm. Nikola Tesla was one of the most important engineers of his time. Although he never received a university degree, he was one of the pioneers of radio, took some of the first X-ray photographs, constructed the first radio-controlled robots, and built the first AC power system.
Can a 208 415 motor run on 230?
never heard of a 415 motor..
What is the Definition of continious duty motor?
A continuous duty motor is one which is never turned off.
What motor must be never run without a load connected to them?
DC Series motor should never run without load connected to it because starting torque for DC series motor is infinite and running it on no load will damage the motor due to overspeeding.
What is the unit of measure for magnetic induction?
One of the most common electrical motor used in most applications which is known as induction motor. This motor is also called as asynchronous motor because it runs at a speed less than synchronous speed. In this, we need to define what is synchronous speed. Synchronous speed is the speed of rotation of the magnetic field in a rotary machine and it depends upon the frequency and number poles of the machine. An induction motor always runs at a speed less than synchronous speed because the rotating magnetic field which is produced in the stator will generate flux in the rotor which will make the rotor to rotate, but due to the lagging of flux current in the rotor with flux current in the stator, the rotor will never reach to its rotating magnetic field speed i.e. the synchronous speed.
