Why wattmeter kick back?

A wattmeter can kick back due to improper connections or load conditions, resulting in incorrect measurements or sudden fluctuations in readings. This phenomenon often occurs when the potential and current coils are not correctly aligned with the circuit they are measuring. Additionally, inductive loads can cause reactive power issues, leading to unexpected movements of the wattmeter's needle. Proper calibration and installation are essential to minimize such occurrences.