A balanced three-phase Y-connected power source is feeding three loads in parallel. Power source: 4160 V/835 kVA Load 1: 400 kW, p.f.=0.8, lagging Load 2: 150 kVA, p.f.=0.9, leading Load 3: 300 kW, p.f.=1 1) Is the power source able to feed the 3 loads simultaneously and why? 2) Give your design enabling the power source to feed the 3 loads simultaneously.

A balanced three-phase Y-connected power source is feeding three loads in parallel. Power source: 4160 V/835 kVA Load 1: 400 kW, p.f.=0.8, lagging Load 2: 150 kVA, p.f.=0.9, leading Load 3: 300 kW, p.f.=1 1) Is the power source able to feed the 3 loads simultaneously and why? 2) Give your design enabling the power source to feed the 3 loads simultaneously.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.48P

See similar textbooks

Similar questions

Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other IS kW at 0.9 power factor leading, are connected in parallel and supplied by a balanced three-phase Y-connected, 480-V source. (a) Determine the source current. (b) If the load neutrals are connected to the source neutral by a zero-ohm neutral wire through an ammeter, what will the ammeter read?
Two balanced Y-connected loads in parallel, one drawing 15 kW at 0.6 power factor lagging andthe other drawing 10 kVA at 0.8 power factor leading, are supplied by a balanced, three-phase,480-volt source.d. ∆-connected capacitors are now installed in parallel with the combined load. Whatvalue of capacitive reactance is needed in each leg of the ∆ to make the source powerfactor unity? Give your answer in W.e. Compute the magnitude of the current in each capacitor and the line current from thesource
I really need help understanding three phase systems. What can you tell me to make it more clear? When can a system be analyzed in its single-phase equivalent? Is it better/easier to have the load in the same configuration as the source? is power factor alwasy the cosing of the angle of the total impedance? Thank you
The load impedance in the figure absorbs 2.5 kW and generates 5 kVAR The sinusoidal voltage source develops 7.5 kW. Suppose that R= 16.5Ω A)Find the min and max of the two inductive line reactances that will satisfy these constraints. B)For Xminobtained in part A,find the magnitudes of the total reactive power generated and the total reactive power absorbed in the circuit. C)For Xmax obtained in part A,find the magnitudes of the total reactive power generated and the total reactive power absorbed.
1. Three impedances Z1, Z2 and Z3 are delta-connected to a symmetrical 3-phase, 400 V supply of phase sequence RYB. Z1 = (8 – j 6) Ω and is connected between lines R and Y. Z2 = (6 + j 8) Ω and is connected between lines Y and B. Z3 = (10 + j 0) Ω and is connected between lines B and R. Calculate (i) line and phase currents (ii) power per phase (iii) total power. Verify the results by creating a MATLAB Simulink model and program. Obtain the plots for the currents and voltages. Repeat for a case when the same loads are now connected in star.
ABC phase sequential In a three-phase balanced Star-Star connected system, the phase on the source side voltage is 300 Vrms. The line impedance in the system is Zhat=1 ohm. star bound Each of the loads has a capacitive load of 5-j3 ohms and an inductive load of 9+j2 ohms. is the parallel connected form of the load. In the light of this information, a) Find the real power provided by the source. b) Determine the power factor of the source.
S1) The serial impedance per unit length of a three-phase 140 km power transmission line is 0.09 + j0.88 ohm/ km and its admittance is j4.1x10-6 S / km. Power factor under 210 kV interphase voltage from the end of this energy transmission line A power of 150 MVA, which is 0.85 back, is drawn. Using this transmission line data and the T equivalent circuit model, the line Calculate the head voltage (V1), current (I1) and load angle.
Consider the microgrid of Figure 3.66. A three-phase transformer, T1, israted at 500 kVA, 220 VY grounded/440 V delta, a transformerwith a reactance of 3.5%.Themicrogridis supplied from anAC bus of a PV generating station.The DC bus rated at 540 V.The distributionlineis 10mileslong and has a series impedance of 0.1 + j1.0 Ω per mile and local load of 100 kVA at 440 V. The microgrid is connected to the local power grid using a three-phase transformer T2, rated at 440 V Y grounded/13.2 kV delta,500 kVA with a reactance of 8%. Compute the per unitimpedance diagram of the microgrid system. Assume the voltage base of 13.2 kV on the local power grid side and kVA base of 500
Apply the delta-wye and wye-delta transformations in appropriate ac networks: For the circuit below, Es = 24<30 V Z₁ = 2 + j2 ohms Z₂ = 4 - j3 ohms Z3 = 6 + j8 ohms Z4 = 8 - j6 ohms Z5 = 10 - j10 ohms Z6 = j12 ohms Calculate the complex power in Z4. PS: Show complete/step-by-step solution without rounding off any numbers
A power system has 2 buses with bus1 as slack bus and bus 2 as PQ bus and bus voltages as V1=20 and V2=20. The admittances are Y11=Y22=492, Y12=Y21=181. Find the real and reactive power in the slack bus. Real Power = Reactive Power =
element values are selected as R1 = 0.5Ω, R2 = 1Ω, J = 2A, E = 1V, β = 4 α = 1. 10Ω to A-B ends When the Ry load impedance is connected, the power consumed at this load is Norton for the circuit. Calculate using the equivalent.
A three-phase system has balanced conditions so that the per-phase circuit representation can be used as shown in Figure 1 Select the turns ratio of the step-up and step-down transformers that the system operates with an efficiency greater than 99 percent. Moreover, find the complex power (received or given) of all components in the circuit and the V1 and V2 voltages. The load voltage is specified as 4 kV rms, and the load impedance is 4/3 ohm. ..