slip frequency may be defined as the difference between the frequency corresponding to the synchronous speed and the frequency corresponding to the rotor speed(other than Ns)
How do you calculate slip frequency?
Explanation: Slip is the ratio of the relative speed of between the stator mmf and the rotor speed to the synchronous speed of the machine. Explanation: The induced frequency will be f = P(Ns-Nr)/2. f = 4(1500-1450)/2 = 100 Hz. Explanation: P = 120f/N = 120*50/1440 = 4(1/6).19 May 2017
What is the slip?
SLIP is the difference between the synchronous speed of the magnetic field and the shaft rotating speed and would be some number of RPM or frequency. The slip increases with an increasing load, thus providing a greater torque.28 Apr 2013
What causes motor slip?
The interaction of currents flowing in the rotor bars and the stators’ rotating magnetic field generate torque. In actual operation, rotor speed always lags the magnetic field’s speed, allowing the rotor bars to cut magnetic lines of force and produce useful torque. This speed difference is called slip speed.15 Nov 2002
How is slip in motor calculated?
Measure the rpm (rotations per minute)of you rotor, and subtract that from rpm of rmf (rotating magnetic field). That is your slip. Divide it further by rpm of rmf to get it on a scale of 0–1. What is the slip of an induction motor when a rotor is blocked?