Alloyaex is a factory manufacturing aluminum. This factory has machines connected in A consuming 190Z-35° V on their BC-phase with impedance value of 36230° 2 per phase. Alloyaex in supplied by the energy utility company, WhiteWatts, with source and line impedances of 4 + j3 2 and 154-25° 2 per phase respectively. If WhiteWatts generates a three phase Y-connected supply with positive sequence, obtain the: (i) Load currents. (ii) Supply voltages. (iii) Total complex power supplied by White Watts.

A 25 kVA, 240 V single phase source supply the rated power at the rated voltage to a motor at 0.8 power factor lagging. Find the capacitor bank in order to improve the power factor to 0.9 lagging. connected to a motor. a. Calculate the real power, reactive power and current before capacitor bank is connected? P= Q= b. Calculate the power and reactive power after capacitor bank is connected? P = c. What is kVA rating of capacitor bank Qc?

2. A single-phase a.c. distributor AB is fed from end A and has a total impedance of (0-2 + j 03) ohm. At the far end, the voltage V = 240 V and the current is 100 A at a p.f. of 0-8 lagging. At the mid-point M, a current of 100 A is tapped at a p.f. of 0-6 lagging with reference to the voltage Vy at the mid-point. Calculate the supply voltage V, and phase angle between V, and Vg- [292 V, 2-6°] a loade

Suppose you have a three-phase generator that provides 120 Vac per phase and works at a frequency of 60 Hz, this generator can be connected in both delta and star. Also consider the following 6 load impedances, which will be connected at the same time to the generator as follows: ZA, ZB and Zc are connected in star, while Zp, Zg and Zp are connected in delta. j20 j3n Za j20 ZA j30 j3n -j20 j 30 -j20 Zo -j20 ZE j30 -j2n j 3n. ZF Assume the generator is star-connected with neutral, calculate total system power, total power factor, and current in neutral.

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A single phase system is supplying power at 220 V to an inductive and capacitive load of 30 A each, Inductive load is lagging the voltage by 30 degrees and capacitive load leading the voltage by 45 degrees. Compute the real and apparent power for both the loads (Question from subject introduction to power engineering)

20) Two AC generators A and B are in Parallel. Each generator has an emf of 1000V per phase and in phase, the phase impedance are ZA = 0.1+j2 ohms, ZB = 0.2+j3.2 ohms respectively. If the common load has an impedance of (2+j1) ohms per phase, solve the voltage per phase at the load

Solve A-E

Find the complex power and the power factor of the load for the network shown below. The voltage at the source is 480Z0° V. The complex power at the source is 144230° kVA.

Two single-phase loads are connected in parallel, where load 1 is 4.7 kVA at 0.87 lagging power factor, and load 2 is5.2 kWat0.79lagging power factor. The load combination is connected to a voltage source of220VAC,50 Hz.   a) Find the total complex power