What is the induced torque?
The developed Torque or Induced Torque Equation in a machine is defined as the Torque generated by the electric to mechanical power conversion. The torque is also known as Electromagnetic Torque.
What is the relation between torque and current in induction motor?
If the question is about the relationship between induction motor current and shaft torque around full load current, then the torque is almost directly proportional to the current or vice versa.
How do you calculate the torque of an electric motor?
To calculate load torque, multiply the force (F) by the distance away from the rotational axis, which is the radius of the pulley (r). If the mass of the load (blue box) is 20 Newtons, and the radius of the pulley is 5 cm away, then the required torque for the application is 20 N x 0.05 m = 1 Nm.
What is the equation for the induced torque in an AC machine?
Tind = KHRBSSinα in the anticlockwise direction. In the equation, the K is the constant its value relies on the assembly of the machine. Direction and the magnitude of the induced torque can be written as.
How is induced torque calculated?
Torque of a three phase induction motor is proportional to flux per stator pole, rotor current and the power factor of the rotor. T ∝ ɸ I2 cosɸ2 OR T = k ɸ I2 cosɸ2 .
What is the formula for starting torque?
We know that at the start the rotor speed, N is zero. So, the equation of starting torque is easily obtained by simply putting the value of s = 1 in the equation of torque of the three phase induction motor, The starting torque is also known as standstill torque.
How is torque calculated in an induction motor?
How is torque produced in an induction motor?
Induction Motors An induction motor develops torque by inducing current to the rotor, which is proportional to the differential speed of the rotor and the rotating magnetic field in the stator.
How do you calculate induction motor speed?
How to Calculate Motor RPM. To calculate RPM for an AC induction motor, you multiply the frequency in Hertz (Hz) by 60 — for the number of seconds in a minute — by two for the negative and positive pulses in a cycle. You then divide by the number of poles the motor has: (Hz x 60 x 2) / number of poles = no-load RPM.
What is induced torque in an induction motor?
Torque Equation of an Induction Motor. The developed Torque or Induced Torque Equation in a machine is defined as the Torque generated by the electric to mechanical power conversion. The torque is also known as Electromagnetic Torque.
What is the developed torque of a motor?
The torque is also known as Electromagnetic Torque. This developed torque in the motor differs from the actual torque available at the terminals of the motor, which is almost equal to the friction and windage torques on the machine. The developed torque equation is given as:
What is the formula for torque?
Torque is given by the product of the force and the radius at which this force acts. Work done by this force in once revolution = Force × distance = F × 2πr (where, 2πr = circumference of the armature) But, F × r = T and 2πN/60 = angular velocity ω in radians per second.
How to find the developed torque in synchronous Watts?
Since ω s is constant and independent of the load conditions. If the value of the P g is known then, the developed torque can be found directly. The air gap power P g is also called as the Torque in Synchronous Watts. Synchronous Watt is the torque that develops the power of 1 Watt when the machine is running at synchronous speed.