How to calculate the power consumption of industrial ceiling fans?

Identify the Voltage Rating: Check the specifications or labeling of the industrial fan to determine its voltage rating. Typically, industrial ceiling fans operate on standard voltages such as 110V, 220V, or 440V.

Measure the Current: Use a clamp meter or ammeter to measure the electrical current drawn by the fan while it is operating. Ensure that the measurement is taken at the appropriate voltage level, and the fan is running at its normal operating speed.

Calculate the Power Consumption: Multiply the voltage (V) by the current (I) to calculate the power consumption in watts. The formula is P = V x I.
For example, if the voltage rating is 220V and the measured current is 5A, the power consumption would be 220V x 5A = 1100 watts.
It's important to note that this calculation provides the apparent power consumption in watts. In some cases, industrial fans may have power factors less than 1, which means that the real power consumption may be lower than the calculated value. To accurately determine the power consumption, you may need to consider the power factor and measure the apparent power using a power analyzer.