What is the max load demand of the following feeders 4.152 MW, 2.891 MW, 815.20 KW, 905.12 KW and 1.972 MW A 10,735.32 KW B 12,815.32 KW C10,571 MW 12.052 MW
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- Figure 3.32 shows the oneline diagram of a three-phase power system. By selecting a common base of 100 MVA and 22 kV on the generator side, draw an impedance diagram showing all impedances including the load impedance in per-unit. The data are given a follows: G:90MVA22kVx=0.18perunitT1:50MVA22/220kVx=0.10perunitT2:40MVA220/11kVx=0.06perunitT3:40MVA22/110kVx=0.064perunitT4:40MVA110/11kVx=0.08perunitM:66.5MVA10.45kVx=0.185perunit Lines I and 2 have series reactances of 48.4 and 65.43, respectively. At bus 4, the three-phase load absorbs 57 MVA at 10.45 kV and 0.6 power factor lagging.In a balanced system, the phasor sum of the line-to-line voltages and the phasor sum of the line-to-neutral voltages are always equal to zero. (a) False (b) TrueThe voltage v(t)=359.3cos(t)volts is applied to a load consisting of a 10 resistor in parallel with a capacitive reactance XC=25. Calculate (a) the instantaneous power absorbed by the resistor, (b) the instantaneous power absorbed by the capacitor. (c) the real power absorbed by the resistor, (d) the reactive power delivered by the capacitor, and (e) the load power factor.
- A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and L=40mH. (a) Determine the power factor of the circuit and state whether it is lagging or leading. (b) Determine the real and reactive power absorbed by the load. (c) Calculate the peak magnetic energy Wint stored in the inductor by using the expression Wint=L(Irms)2 and check whether the reactive power Q=Wint is satisfied. (Note: The instantaneous magnetic energy storage fluctuates between zero and the peak energy. This energy must be sent twice each cycle to the load from the source by means of reactive power flows.)Three single-phase transformers, each rated 10MVA,66.4/12.5kV,60Hz, with an equivalent series reactance of 0.1 per unit divided equally between primary and secondary, are connected in a three-phase bank. The high-voltage windings are V-connected and their terminals are directly connected to a 115-kV three-phase bus. The secondary terminals are all shorted together. Find the currents entering the high-voltage terminals and leaving the low-voltage terminals if the low-voltage windings are (a) Y-connected and (b) - connected.Borduria Generation owns three generating units that have the following cost functions: Unit A: 15 + 1.4 PA + 0.04 P2 A $/h Unit B: 25 + 1.6 PB + 0.05 P2 B $/h Unit C: 20 + 1.8 PC + 0.02 P2 C $/h How should these units be dispatched if Borduria Generation must supply a load of 350 MW at minimum cost?
- The annual load duration curve of a power supply system may be considered as straight line from 40 MW to 8 MW. The load factor of the system is ?The yearly load duration curve of a certain power station can be approximated as a straight line; the maximum and minimum loads being 40 MW and 10 MW respectively. To meet this load, three turbine generator units, two rated at 20 MW each and one at 10 MW are installed. Draw the load duration curve and determine: (i) Installed capacity (ii) Plant capacity factor (iii) kWh output per year (iv) Load factor.CALCULATE the power delivered to the load RL, in a scenario of Maximum Power Transfer.( NEED ONLY HANDWRITTEN SOLUTION PLEASE OTHERWISE DOWNVOTE).
- Which termination would result to a phase change of 180 degrees at the load if Zo = 100 ohm? a. 50 ohm b. short circuit c. 75 ohm d. all of these What is the purpose of impedance matching? a. maximum return loss b. maximum SWR c. maximum load power d. maximum reflection A short piece of transmission line that may be open or shorted and used for impedance matching purposes. a. converter b. decoder c. stub d. transformerPlease answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. Given the following loads, determine the total power (real, reactive and apparent), current and power factor.Type your question here A power plant has to meet the following load demand: Load A: 100 MW from 8 AM - 6 PM Load B: 150 MW from 6 AM - 10 AM Load C: 50 MW from 6 AM - 10 AM Load D: 20 MW from 10 AM - 6 AM Plot the daily load curve and determine (a) diversity factor (b) load factor (c) daily energy produced.