In a 132 kV, 3-phase, 50 Hz power system, the line to ground capacitance is 0.03 μF and the inductance is 6H. Calculate the following: (1) Voltage appearing across the breaker pole when a magnetizing current of 7 A (Instantaneous value) is interrupted. (2) Resistance to be connected across the contacts to eliminate the restriking voltage.

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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.