What is the power of the motor
Dc motor power P = UI Ac motor power: P = 1.732 * U * cos phi Power = force * velocity P is equal to F times V minus the formula 1 Torque (T) = torque (F) * action radius (R) is F = T/R.Linear velocity (V) = 2 PI R * speed per second (n seconds) = 2 PI R * 60 per minute speed (n)/n = PI R * 3 points / 30 - formula Formula 2 and 3 enter formula 1: P = F * V = T/R * PI R * n / 30 = PI / 30 * T * n -p = power unit W, T = torque unit Nm, n points = revolutions per minute If you change the units of P to KW, then this is the formula: P * 1000 = PI / 30 * T * n 30,000 / PI * P = T * n 30000/3.1415926 * P = T * n P = 9550 T * n If we know that P, according to 9550P is equal to T times n, we know that the other one in the torque T and the velocity W is right
The starting torque and the power are maximal at the start, so the torque and power are at the maximum, and the speed is zero because there is no rotation. With motor gradually enter the rated speed, torque and power gradually become smaller, achieve actual load torque and power, I add work load, motor speed will become smaller, torque increase, until the increase in power and load torque reaches a new equilibrium. 2. Weight free fall, because the acceleration, so P = FV, as speed increases, so the load power is growing, starting moment, motor torque increase until more than first start after increasing the load torque, power is now increasing after reaching the maximum reduction and weight (without acceleration) produced by the power of gravity, speed from zero until uniform motion.
P is not equal to U times I, it should be the power of the motor, P = 1.732 times cosine phi. (U is line voltage, I for line current); Output power P = T times W;
