j0.1 2.0+j0.5 j0.4 j0.2 1.01 3.
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a) Find the Y-bus power system in rectangular and polar coordinates.
b) Specify the type of each bus, and the known/unknown values.
c) What is the real and reactive power injections at buses 2 and 3?
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- Consider the circuit shown. Find the following: a. Total load impedance seen by the voltage source. b. Complex power delivered by the source. c. Average power delivered by the source. d. Reactive power delivered by the source. e. Load power factor and power factor angle.A single phase overhead transmission line delivers 1100 kW at 30 kV at 0.8 p.f. lagging. The total resistance and inductive reactance of the line are 10 Ohm and 15 Ohm, respectively. Determine the magnitude of the sending end voltage. Select one: a. 30780 V b. 31746 V c. 30122 VDetermine the complex power delivered to the load.
- Give the value of the impedance seen across nodes x and y when w = 1000rad/sec.Find the average power delivered to ZL, given N1 = 50 turns and N2 = 10 turns.Under balanced operating conditions, consider the three-phase complex power delivered by the three-phase source to the three-phase load. Match the following expressions, those on the left to those on the right. (i) Realpower, P3 (a) (3VLLIL)VA (ii) Reactive power, Q3 (b) (3VLLILsin)var (iii) Total apparent power, S3 (c) (3VLLILcos)W (iv) Complex power, S3 (d) P3+jQ3 Note that VLL is the rms line-to-line voltage, IL is the rms line current, and is the power-factor angle.
- transmission line with an impedance of 35 Ω is connected to a load of impedance of 300 Ω, then the value of VSWR assuming that the line impedance is decreased by 30 % and load impedance is increased by 40%.From the circuit given below, How can I find the value of load Z for the maximum power transfer and the maximum average power transferred?A transmission line with impedance of 0.085 + j 0.32 Ω is used to deliver power to a load. The load is inductive and the load voltage is 200∠0° Vrms at 60Hz. If the load operates at 20 kVA with a power factor of 0.75 determine the real and quadrature power losses in both the load and the line and the source voltage phasor.
- A load impedance, Zo = 10 + j 3 ohm, is connected to a source with line resistance equal to 3 ohm, as shown in the figure. Determine the apparent power supplied by the generator. The apparent power supplied by the generator is _____ VA.For a transmission line with 50 ohm impedance, plot the normalized impedance for the following impedances.a. Z1 = 100 + j50 ohmb. Z2 = 75 – j100 ohmA 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation?