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# What is relation between speed and torque in induction motor?

## What is relation between speed and torque in induction motor?

Since the rated output power of a motor is a fixed value, speed and torque are inversely related. As output speed increases, the available output torque decreases proportionately. As the output torque increases, the output speed decreases proportionately.

How do you calculate speed from torque?

1. Torque (lb.in) = 63,025 x Power (HP) / Speed (RPM)
2. Power (HP) = Torque (lb.in) x Speed (RPM) / 63,025.
3. Torque (N.m) = 9.5488 x Power (kW) / Speed (RPM)
4. Power (kW) = Torque (N.m) x Speed (RPM) / 9.5488.

### What is torque speed characteristic of induction motor?

The induction motor torque-speed characteristic gives information on the dependence of induced mechanical torque on mechanical speed. Sometimes this characteristic is called torque-slip characteristic, where slip is defined as speed relative to synchronous speed expressed as a fraction of synchronous speed.

How do you calculate the torque of a single phase induction motor?

1. Full load torque equation of induction motor is as follows:
2. The starting torque of a motor is that torque which is produce by it at start. It is denoted by Tst and corresponds to s = 1.
3. The maximum torque is denoted by Tm and occurs at s = R2/X2. The value of slip which corresponds to maximum torque is denoted by sm.

#### What is torque vs speed?

Torque relates to the rotational force of an electric motor while speed refers to the rate that the motor can rotate. This means that torque is associated with rotational force while speed relates to the rate of rotation which can be calculated by examining the RPMs, or revolutions per minute.

What is torque and speed?

## What is speed torque?

Torque is the rotational equivalence of linear force. Speed measures the distance covered in unit time. The relation between torque and speed are inversely proportional to each other.

What is synchronous speed in induction motor?

In an induction motor, the speed at which the rotating magnetic field (RMF) rotates is known as synchronous speed (NS). The value of the synchronous speed depends upon the number of stator poles (P) in the motor and the supply frequency (f).

### What is synchronous speed of induction motor?

Synchronous speed is the speed of rotation of the magnetic field in a rotary machine. An induction motor always runs at a speed less than synchronous speed. The rotating magnetic field which is produced in the stator will generate flux in the rotor which will make the rotor rotate.