10 .Diversity factor reducesa) simultaneous maximum demand on station for same individual demands b) capital cost for the stationc) overall rate for generation of electricity11. Load factor is defined asd) all of thesea) Maximum demand/average demandc) Maximum demand/Peak loadb) Average demand/Maximum demand12. In flat rate tariffs, the rate is fixed by taking into account the consumersd) Maximum demand/Minimum loada) diversity factorb) load factorc) plant use factord) a and b13. When the power factor of a load increases, the losses in the transmission and distribution linesa) Increaseb) Decreasec) Remain samed) Uncertain14. The Advantages of D.C. transmission system over A.C. isa) No skin effectb) Charging currents are eliminatedc) Line regulation is improved d) All of these15.For conventional power plants, running cost is minimum fora) Thermal plantb) Nuclear plantc) Hydro plantd) Diesel plant16.The disadvantage of flat rate tariff is that it is difficult toa) Arrive at a load factor and diversity factor to decide the tariff b) Estimate the cost of generationc) Control the desired power factord) All of these17. Which of the following hydraulic turbine is used for water heads exceeding 400 meters?a) Kaplan turbine18. Heavy water impliesa) H20c) Francis turbined) None of theseb) Pelton wheeld) D20b) W20c) B2019. The main objective of tariff is to distribute equitably the cost ofa) Supplying energy amcng the various classification of usersc) Energy production among aii its consumersb) Power transmission and distributiond) Installation and fuel20. Running cost of powe: plt is tased on the cost ofd) All of thesc) Maintenance and operationb; Consemable itemsa) Energy or fuelb) Operation, supplies, and maintenance of equipmentd) All of these21.All types of tariffs must recover the cost ofa) Capital investment in generating equipmentc) Metering equipment, billing, collection costs, profit and wages3

Higher the diversity factor, lesser is the cost of generation of power and reducing the maximum…

10 .Diversity factor reduces a) simultaneous maximum demand on station for same individual demands b) capital cost for the station c) overall rate for generation of electricity d) all of these 11. Load factor is defined as a) Maximum demand/average demand c) Maximum demand/Peak load b) Average demand/Maximum demand d) Maximum demand/Minimum load 12. In flat rate tariffs, the rate is fixed by taking into account the consumers d) a and b a) diversity factor c) plant use factor b) load factor 13. When the no

10 .Diversity factor reduces a) simultaneous maximum demand on station for same individual demands b) capital cost for the station c) overall rate for generation of electricity d) all of these 11. Load factor is defined as a) Maximum demand/average demand c) Maximum demand/Peak load b) Average demand/Maximum demand d) Maximum demand/Minimum load 12. In flat rate tariffs, the rate is fixed by taking into account the consumers d) a and b a) diversity factor c) plant use factor b) load factor 13. When the no

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Please neglect the simulation
System AB is connected to system BC via a 1000 MW tie-line. The total capacity of the online units and the demand of system AB are 10000 MW and 8500 MW, respectively. The total capacity of the online units and the demand of system BC are 20000 MW and 17000 MW, respectively. System AB is importing 500 MW from system BC and all units operate with a common governor droop setting of 5% for both systems. All generating units are operating with sufficient spinning reserve and can respond to frequency changes. AB System capacity=10000 MW 8500 MW 9000 MW AB system load (a) (b) (c) (d) (e) T... 60.15 Hz 60.075 Hz 60.0 Hz 59.925 Hz 59.85 Hz BC system capacity = 20000 MW 500 MW 17500 MW Q34. Determine the new frequency of system AB if the tie-lie interconnecting systems AB and BC trips (a) (b) (c) (d) Q35. Determine the new frequency of system BC if the tie-lie trips 60.15 Hz 60.075 Hz 60.0 Hz 59.925 Hz 59.85 Hz 17000 MW BC system load
1. What is the ultimate objective of an interconnection? 2. What does it mean when the ACE of all areas in an interconnection is equal to ZERO? 3. Explain the difference between the ACE in a single-area power system and the ACE in two-area power system. 4. If there is a decrease in frequency of a two areas interconnection, but the net interchange power leaving balancing area 1 increases. This means: 5. If the monitoring system indicates a negative ACE, what does this means? 6. Briefly discuss the term Frequency Response. 2 2-1 LilAJ 11:06 PM 8/29/2021 A ENG
B) Four regions of peak loads 5 MW, 7 MW, 8 MW and 10 MW are supplied by a generating station. The average annual load factor is 0.6 and the diversity factor at the station is 1.5. Calculate: (i) Annual energy supplied by the station (ii) The maximum demand on the station. (iii) If the installed capacity is greater than maximum demand by 20%, suggest the best number of units should be used to cover the load curve
Q2. A) Define only Five items of the following: 1) Load curve, 2) Demand factor, 3) Daily load curve, 4) Plant use factor, 5) Diversity factor, 6) Yearly load curve, 7) Maximum demand, 8) Load factor.
Power system planning can be done only after conducting a. Power flow analysis b. Economi dispatch c. Generation flow analysis d. Unit commitment
3. Two adjacent regions decide to interchange power with each other to reduce their costs. The common incremental cost and total generation cost of units in each region, before and during power exchange, presented in table below. Common (IC) | Common (IC) for system 1 for system 2 8.8 8.6 before interchange 8.1 during interchange 8.6 and each region's share. (c) Calculate total (a) Determine buyer and seller regions. (b) Calculate the profit amount obtained from power interchange. Total cost in system 1 10231 12776 Total cost in system 2 9452 6055 payment cost plus seller's profit). from buyer to seller (including energy
on DIS: (Answer these before coming to the experiment) Q1. Why sending end power is more than receiving end power in transmission? Explain Ref [1] reasons with necessary equations. Q2. For a give VR and I, the transmission line efficiency increases with the decrease in Ref [2] power factor for lagging loads. [True/False]? Q3. What is a peak load? How does it affect the power factor and Efficiency? Q4. The efficiency of DC transmission is more than AC transmission. Why? Q5. How Ferranti effect changes the transmission line efficiency? Explain. Ref [2] Ref [3] Ref [3]
The interconnected system has the following advantages. It increases the service reliability and any area fed from one generating station during peak load hours can be fed from the other generating station. Select one: a. False b. None of the above c. True
Choose the right answer. 1. The symmetrical component method is …………. 2. Conditions for succesful operation of a power system ………،……….. and ………… 3. The reason we use the numerical methods in load flow analysis is ……….
To qualify system stability, we use: a. Routh criterion b. Phase margin c. Gain and phase margin d. Gain margin
A system consists of four idenital 400 MVA generating units feed- ing a total load of 1016 MW. The intertia constant of each unit is 5 on 400 MVA base. The load changes by 1.5% for a 1% change in frequency. When there is sudden drop in load by 16 MW, obtain the power system time constant (T) with constants H and D expressed on 1600 MVA base.