Electric Motor Rpm Calculator

F supply frequency hz.

Electric motor rpm calculator.

Enter any 3 known values to calculate the 4th if you know any 3 values pulley sizes or rpm and need to calculate the 4th enter the 3 known values and hit calculate to find the missing value. Calculator of the rotation speed in r p m revolutions per minute of an electric motor from frequency hz and number of poles. A enter speed in rpm. Dcac single phaseac three phase enter current in voltage.

The motor speed calculator calculates the synchronous motor speed from the following parameters. In fact many factors affect the test result such as battery discharge rating motor windings propeller loading and motor efficiency etc. For dc motor pf is one. In the calculator above fla is rla 25.

Motor torque changes with the speed. Calculating the rpm resulting from a motor and speed reducer assembly requires only basic mathematical knowledge. Write down the rated rpm of your motor. 1750 rpm 1000 rpm 3 5 inches d 2 d 2 6 125 inches.

Pulley and speed calculator. P number of poles. Below product is a great tool to measure the rpm of motors. At no load you have maximum speed and zero torque.

Rla running load amps current drawn during normal operation of electric motor. In our example input electrical power of the motor is 0 22 a x 6 v 1 32 w output mechanical power is 1000 rpm x 2 x 3 14 x 0 00126 n m 60 0 132 w. Load adds mechanical resistance. For example 50 hz or 60 hz.

V enter current in amps. In order to more accurately meausre the prm i suggest that use the professional tool to help. The torque delivered from an electrical motor producing 0 75 kw 750 w at speed 2000 rpm can be calculated as t 750 w 9 549 2000 rpm 3 6 nm example torque from an electrical motor. A handy tool for checking the prm of brushless motors.

For example if your small pulley is 80mm diameter and spins at 1000 rpm and you need to find the second pulley size to spin it at 400 rpm enter pulley1 80 pulley 1 rpm 1000 pulley 2 rpm 400 and. Enter the input voltage in volts current in amps speed in rpm and power factor. Choose the motor types. Motors run at a specific revolutions per minute rpm and a speed reducer is needed if you want to keep that motor but have a lower rpm.

1 hp 0 745 kw. Fla full load amps amount of current drawn when full load torque and horsepower is reached for the motor fla is usually determined in laboratory tests note. Related mobile apps from the engineering toolbox.