How exactly is the total power consumption of a pump calculated?
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The industrial power supply is 380V; the current at present is 130A, and the power factor is 0.96. So, what is the total power consumption? Is it apparent power P=U*I, or active power P=1.732*U*I*cosφ, or is it total power P=1.732*U*I*cosφ+1.732*U*I*sinφ? I’m not sure how to calculate it. The power factor of the old pump is 0.81. I hope someone can clarify this for me; I really don’t understand how to determine the actual power consumption
The total power consumption should be calculated based on the total active power, i.e., P = 1.732 * U * I * cosθ, where P represents the total active power, U is the voltage, I is the current, and cosθ is the power factor. Based on the data you provided, with a voltage of 380V, a current of 130A, and a power factor of 0.96, the total active power of the pump is: P = 1.732 * 380 * 130 * 0.96 = 89,149.76 watts. If the pump’s power factor is 0.81, then the total active power of the pump is: P = 1.732 * 380 * 130 * 0.81 = 73,005.24 watts. Therefore, the total electricity consumption of the pump should be calculated based on the total active power. .