Since active power flows from leading bus to lagging bus therefore, P will flow from i to k. Since, reactive power flows from high potential bus to low potential bus therefore, Q will flow from i to k.
The step-up chopper can be employed in regenerative braking both for increasing and decreasing motor speed provided duty cycle a is so adjusted that Vs/( 1 - a) exceeds the fixed source voiiage V0. Hence, reason is a false statement.
Measurement by direct methods are not always possible, feasible and practicable. In most of the cases direct method of measurements are inaccurate because they involve human factors. Moreover, they are less sensitive. Due to these reasons use of direct method of measurement is limited while indirect methods are commonly used