This, indeed is one way by which the receiving end voltage is regulated in some practical instances, Static capacitors are switched in and out during the day, and their value is adjusted to keep the receiver end voltage constant.
For purely inductive loads, the capacitors should deliver reactive power equal to that consumed by the inductive load This produces a parallel resonance effect in which reactive power required by tho inductance is, in effect, supplied by the capacitance and none is furnished by the transmission line. For resistive loads, the reactive power, which the capacitors must supply to regul the voltage, is not easy to calculate. In this experiment, we shall determine the react ive power by trial and error, adjusting the capacilors until the receiver end voltage is equal to the sender end voltage. Finally, for loads which draw both real and reactive power(they are the most com- mon) the capacitors must be tailored to compensate first, for the inductive compo- nent of the load and second, for the resistive component.