Problem A delta connected capacitor bank is now installed in parallel with the combined- motor load in the previous problem. (a) What value of capacitive reactance is required in each leg of the capacitor bank to make the source power factor unity? (b) Determine the magnitude of the line current delivered by the source with the capacitor bank installed.

2. When a large shunt capacitor is suddenly connected in parallel with the load bus in the distribution feeder, what would happen to this bus current? O A. Increase B. Decrease D. None of Above

may be more than one answer

In differential compound DC Generator the shunt field current and the series field current are in opposite direction  Select one: True False     For lap and wave wound generators the generated power is same. Select one: True False

How do the capacitor and inductor support the circuit in power factor improvement?

The reactance’s of the alternator  during the periods of the subtransient, transient and steady state periods are following, Leakage reactance(XL)=0.16 ohm, Damper winding reactance(XD)= 0.28 ohm     Field winding reactance(Xf)=0.41 ohm and   Armature reactance (Xm)= 0.74 ohm. The value of the  steady state  reactance  during the  steady state   condition is                                                                        Steady state  Reactance  Answer

READ THE PROBLEM AND JUST DRAW CIRCUIT DIAGRAM. NO NEED TO SOLVE ANYTHING. A short shunt compound generator delivers 150A at a terminal voltage is 230V.The shunt field current is 2.5A. The resistances of the armature, series field and diverterare 0.032 ohm, 0.015 ohm and 0.03 ohm respectively. Calculate the electrical efficiencyof the generator at this load. Modify the circuit diagram on the picture based on the problem. Answer: 95.7%

2. Clear and complete solution.

In a certain sub-station, there are 5 d.c. shunt generators in parallel, ench having an armature resistance of 0.1 0, running at the same speed and excited to give equal inducnd emfs Each generator supplies an equal share of a total load of 250 kW at a terminal voltage of 500 V into a load of fixed resistance. If the field current of one generator is raised by 4%, the others remaining unchanged, calculate the power output of each machine and their terminal voltages under these conditions Assume that the speeds remain constant and flux is proportional to field current

I already solved for the 0.8pf lagging. My question is for voltage regulation with 0.8pf leading! Thank you! Example is from in class