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Chapter 6 Solutions
EBK POWER SYSTEM ANALYSIS AND DESIGN
- pls solve in less than 30 min.arrow_forwardA Single Area consists of 3 generating units (G1/G2/G3) with the following characteristics: G1: 425 MVA rating, R1 = 0.015 pu (on the 425 MVA base), initial output P1 = 300 MW. G2: 300 MVA rating, R2 = 0.02 pu (on the 300 MVA base), initial output P2 = 200 MW. G3: 300 MVA rating, R3 = 0.03 pu (on the 300 MVA base), initial output P3 = 200 MW. The frequency of the system is 60 Hz. Assuming D = 0 pu and using a common base of 1000 MVA, what is the new steady-state frequency for a load increase of 100 MW? Select one: O a. None of these O b. 59.96 Hz O c. 58.75 Hz O d. 59.88 Hzarrow_forwardA Single Area consists of 3 generating units (G1/G2/G3) with the following characteristics: G1: 250 MVA rating, R1 = 0.02 pu (on the 250 MVA base), initial output P1 = 200 MW. G2: 350 MVA rating, R2 = 0.015 pu (on the 350 MVA base), initial output P2 = 300 MW. 0.03 pu (on the 300 MVA base), initial output P3 = 150 MW. G3: 300 MVA rating, R3 = The frequency of the system is 60 Hz. Assuming D = 1 pu on a common base of 1000 MVA, what is the new generation output for G3 for a load increase of 75 MW? Select one: O a. 190.55 MW O b. None of these O c. 203.38 MW d. 166.01 MWarrow_forward
- I need the answer as soon as possiblearrow_forwardA generating station has a connected load of (45MW) and a maximum demand is (15MW). with average demand of (6300KW), the value of demand * factor and load factor are 0.55, 1.5 0.33 ,0.42 O 3,0.14 Oarrow_forwardThe 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.arrow_forward
- Solve it fast plzarrow_forwardWhile the instantaneous electric power delivered by a single-phase generator under balanced steady-state conditions is a function of time havi ng two components of a constant and a double-frequency sinusoid, the total instantaneous electric power delivered by a three-phase generator under balanced steady-state conditions is a constant. (a) True (b) Falsearrow_forwardA 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.)arrow_forward
- The 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.arrow_forwardA Single Area consists of 3 generating units (G1/G2/G3) with the following characteristics: G1: 200 MVA rating, R1 = 0.025 pu (on the 200 MVA base), initial output P1 = 150 MW. G2: 300 MVA rating, R2 = 0.01 pu (on the 300 MVA base), initial output P2 = 200 MW. G3: 400 MVA rating, R3 = 0.02 pu (on the 400 MVA base), initial output P3 = 300 MW. The frequency of the system is 60 Hz. Assuming D = 0.75 pu on a common base of 1000 MVA, what is the new generation output for G1 for a load increase of 150 MW? Select one: O a. None of these O b. 252.12 MW O c. 155.45 MW O d. 170.42 MWarrow_forwardA Single Area consists of 3 generating units (G1/G2/G3) with the following characteristics: G1: 200 MVA rating, R1 = 0.025 pu (on the 200 MVA base), initial output P1 = 150 MW. G2: 300 MVA rating, R2 = 0.01 pu (on the 300 MVA base), initial output P2 = 200 MW. G3: 400 MVA rating, R3 = 0.02 pu (on the 400 MVA base), initial output P3 = 300 MW. The frequency of the system is 60 Hz. Assuming D 0.75 pu on a common base of 1000 MVA, what is the new generation output for G1 for a load increase of 150 MW? Select one: a. 252.12 MW b. None of these 170.42 MW d. 155.45 MWarrow_forward
Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning