How do you calculate motor power?
Power = (Force x Distance) / Time For electric motors, power or horsepower can be calculated from the torque and speed. For example, if you have a motor rated for 3,000 RPM and 6 in-lbf then the horsepower is calculated below.
How do you calculate the kW of a 3 phase motor?
Multiply the motor voltage by the full-load current. The result is in watts. Divide watts by 1,000 to give kilowatts. For example, 230 volts x 20 amps = 4,600 watts; 4,600 watts divided by 1000 = 4.6 kilowatts.
How do you calculate total power in a three phase system?
Easy enough. To find the power given current, multiply by the voltage and then the power factor to convert to W. For a three phase system multiply by three to get the total power.
What is electric power formula?
The electric power in watts produced by an electric current I consisting of a charge of Q coulombs every t seconds passing through an electric potential (voltage) difference of V is P=QVt=IV P = QV t = IV , where Q is electric charge in coulombs, t is time in seconds, I is electric current in amperes, and V is electric …
How do you calculate three phase power?
Calculate three-phase motor power consumption by multiplying amps by volts by the square root of three (W = AV(sqrt 3). For example, if the motor is drawing 30 amps at 250 volts, you have 30 x 250 x sqrt 3 (about 1.73) = 12,975 watts).
What is the formula for three phase power?
Apply Ohm’s Law Formula. Arrange the equation for three-phase power to solve the current (amps): Current (amps) = power (watts) ÷ voltage (volts) ÷ square root of 3 (1.732) ÷ power factor; I = P ÷ (V_1.732_p.f.).
How to calculate 3 phase power?
How to Calculate 3 Phase Power Single-Phase vs. Three-Phase Power. Three-Phase Power Formula. The most important three-phase power equations relate power ( P , in watts) to current ( I , in amps), and depend on the voltage ( V Converting kW to Amps. Converting Amps to kW.
How to calculate three phase amperage?
Divide the power consumption in watts by the line voltage multiplied by the power factor to find the amperage. For three phase circuits the power factor is the square root of 3. If your calculator doesn’t have a square root function, use 1.73 as an approximation of the square root of 3.