What is the relationship between torque speed and power?

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 power from torque and speed?

The equation to calculate horsepower is simple: Horsepower = Torque x RPM / 5,252.

How do you convert kW to rpm?

  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.

Is torque equal to power?

Back to Berra’s theorem, torque is the capacity to do work, while power is how quickly some strenuous task can be accomplished. In other words, power is the rate of completing work (or applying torque) in a given amount of time. Mathematically, horsepower equals torque multiplied by rpm.

Is torque inversely proportional to speed?

What is the Relationship Between Torque and Speed? The mathematical formula tells us that this force around an axis is inversely proportional to speed (angular velocity). This means that an increase in velocity causes torque to drop and vice versa.

Why does torque decreases when speed increases?

But when the speed increase, the torque tends to decrease. This is because the torque is supplied by the current, while faster speeds increase the back emf which not only limits its final speed but blocks incoming current, therefore lowering torque.

How do you find power with torque?

Fundamentals: Power = Torque x RPM (x a constant) The reason for that is the basic power formula: P = F•v, Power = force x velocity. Applied to rotating objects (angular motion), this becomes P = T•v. So you multiply torque by rotating speed to get to power.

How do you calculate torque from watts and rpms?

Watt (W) to Torque (Nm) Calculation:

  1. Motor Torque T(Nm) in Newton meter (Nm) is equal to 9.554140127times of the electric power P(W) in watts divided by the speed N(rpm) in rpm.
  2. Nm = 0.74 * lb-ft.
  3. T(Nm) = 144 Nm.

How do you calculate rpm speed?

One crucial measurement is revolutions per minute, or RPM, which describes the speed of a motor….For a 60 Hz system with four poles, the calculations to determine RPM would be:

  1. (Hz x 60 x 2) / number of poles = no-load RPM.
  2. (60 x 60 x 2) / 4.
  3. 7,200 / 4 = 1,800 RPM.

Does more torque mean more speed?

Well, it has everything to do with the torque and horsepower on your car. These two features essentially determine the speed of your vehicle. The higher the torque and horsepower, the faster you go.