Calculate the percentage error for a wattmeter which is so connected that the current coil is on the load side, The wattmeter has a current coil of 0.0302 resistance and a pressure coil of 60000 resistance. It is also known that the load takes 20 A at a voltage of 220 V and 0.6 power factor.

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Compensation Techniques

The compensation techniques are the methods that are employed in the electrical control systems to enhance the performance of the system. The performance are generally affected by the factors like lag in the compensating devices, slow response of the system of the components like sensors used in the control system. The basic compensation technique involves lag compensation, lead compensation or the combination of the both.