Q1. A certain power station has the following daily load cycle:- Time (6-8)am (8-12)am (12-16)pm (16-20)pm (20-24)pm (24-6)am In hours Load in MW 20 40 60 20 50 20 The daily Load being served by a run - of - river as a base station and a steam as a peak load station, rated of each one is 35MW. The ratio of number of units supplied by these stations is as follows: Steam station: run - of - river station : 6: 4. Draw load duration curve then determine i. Units generated per day by each station. ii. Maximum demand by each station. iii. Utilization factor by each station.

Q1. A certain power station has the following daily load cycle:- Time (6-8)am (8-12)am (12-16)pm (16-20)pm (20-24)pm (24-6)am In hours Load in MW 20 40 60 20 50 20 The daily Load being served by a run - of - river as a base station and a steam as a peak load station, rated of each one is 35MW. The ratio of number of units supplied by these stations is as follows: Steam station: run - of - river station : 6: 4. Draw load duration curve then determine i. Units generated per day by each station. ii. Maximum demand by each station. iii. Utilization factor by each station.

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 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...

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QI. A certain power station has the following daily load cycle:- Time In hours Load in MW (6-8)am (8-12)am (12-16)pm (16-20)pm (20-24)pm (24-6)am 20 20 40 60 50 20 The daily Load being served by a run - of - river as a base station and a steam as a peak load station, rated of each one is 35MW. The ratio of number of units supplied by these stations is as follows: Steam station: run - of - river station : 6: 4. Draw load duration curve then determine i. Units generated per day by each station. ii. Maximum demand by each station. iii. Utilization factor by each station.
Q20. The section bus-bars A and B as shown in Figure B5 are linked by a bus-bar reactors each rated at 5000 kVA with 10% reactance. On bus-bar A, there are two generators each of 10,000 kVA with 10% reactance and on B two generators each of 8000 kVA with 12 % reactance. Find the Current and MVA that fed into a dead short circuit between all phases on B with bus-bar reactor in the circuit. Page 4 of 5 جامعة التقنية والعلومر التطبيقية بإبراء University of Technology and Applied Sciences - Ibra Student ID: Section: Student Name: 8,000 kVA 12% 10,000 kVA 10,000 kVA 10% 8,000 kVA 12% 10% 2 3 5,000 kVA 10% lell 8,000 kVA 10% Figure B5 "End of Question Paper"
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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.)
A 25 cycle emf has an rms value of 250 volts, is zero and increasing positively when time is zero. Determine: a) time when after having gone through its maximum positive value reaches a value of 220 volts, b) time when after having gone through its maximum negative value reaches a value of -150 volts.
Please answer with step by step math for Zin, Zout, and the load voltage. Thank you!
Two 50-MVA, 3-phase alternators operate in parallel. The settings of the governors are such that the rise in speed from full-load to no-load is 2 percent in one machine and 3 percent in the other, the characteristics being straight lines in both cases. If each machine is fully loaded when the total load is 100 MW, what would be the load on each machine when the total load is 60 MW? (Req'd) Draw an appropriate diagram.
A single phase 120V AC sourc controls power to a resistve load 20N using integral cycle control. a) Find the output power for both output voltage waveforms shown below. b) The voltage and the current ratings of the switch. c) The duty cycle and the value of TON to produce 0.63KW power. d) The power factor for part (c). Awww TON -TON
Question#5 Figure below shows a simple single-phase AC power system with three loads. The voltage source is V = 240 < o°v and the impedances of these three loads are z, = 10 < 30°n Z2 = 10 < 45°0 Z3 = 10 < -90°n z,
e = 0 Q1: What does happen if we change two currents? a. Q2: What does happen if we have a three-phase four poles machine? Q3: What does happen if we have a two-phase two poles machine? e = 0 Q4: What does happen if we apply a capacitance in phase b and then use same voltage for both phase. Dr. Ali Ki. pw --
Question 13 of 15 Determine: The figure below shows a vapor power cycle that provides process heat and produces power. The steam generator produces vapor at 500 lbf/in.², 800°F, at a rate of 8 x 104 lb/h. Seventy percent of the steam expands through the turbine to 10 lbf/in.² and the remainder is directed to the heat exchanger. Saturated liquid exits the heat exchanger at 500 lbf/in.² and passes through a trap before entering the condenser at 10 lbf/in.² Saturated liquid exits the condenser at 10 lbf/in.² and is pumped to 500 lbf/in.² before entering the steam generator. The turbine and pump have isentropic efficiencies of 85% and 89%, respectively. For the process heat exchanger, assume the temperature at which heat transfer occurs is 465°F. Let To -60°F, po - 14.7 lbf/in.² Steam generator 6 7p=89% P₁ = 500 lbffin,² T₁ = 800°F Heat exchanger Pump m₂ ND 1 (y) (1-y) √n process 7=85% P4=500 lbf/in.2 saturated liquid (a) the magnitude of the process heat production rate, in Btu/h. P3=10…
8 = 0 Q1: What does happen if we change two currents? Q2: What does happen if we have a three-phase four poles machine? a Q3: What does happen if we have a two-phase two poles machine? Q4: What does happen if we apply a capacitance in phase b and then use same voltage for both phase. Dr. Ali K....p. . --