What are the elements which contribute to the cost of the electricity? And discuss how the "load curves' and 'load duration curves' can helpful in the economics of generation.
Q: Discuss wind power in future power system
A: Wind energy: Wind energy is a renewable source of energy. It is a fast growing source of energy.…
Q: What are the characteristics of an excellent DC power source? Give 3 and explain.
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Q: Derive the equation (Rule) step by step, to calculate the secondary induced emf of a static…
A: Consider the static electric machine is the transformer. Then, the emf equation of the transformer…
Q: What is power factor? what are the causes of low power factor and how do you improve the power…
A: Active Power (P): The power which is deployed and absorbed by the electric circuit to do some…
Q: Explain the environmental impacts of wind power plant?
A: Same as all other power generating systems, wind power generation system also have many unfavorable…
Q: Why is it necessary to prefer renewable energy over conventional energy sources?
A: Conventional energy produce from coal, fossile fuels and oil. It will be completely consumed by one…
Q: Please write introduction about AC Circuits – Series and Parallel connected Circuits. (note :please…
A: In AC circuits generally we use combination of resistors inductors and capacitors. In case of AC…
Q: Explain in brief the skin effect in power system.
A: In the conductor, the availability of the alternating current at the surface is greater and this…
Q: Explain the environmental impacts of Geothermal power plant
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Q: Explain binary cycle power plant (using figure). Compare its performance as compared to other…
A: The binary cycle power plant details are shown below; Binary cycle power plant is a form of…
Q: . Explain the environmental impacts of Hydropower plant?
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Q: What are the basic/necessary steps to design a pico hydro power plant? Inlcude the parts of…
A: The basic/necessary steps to design a pico hydropower plant: • It should be practical and suitable,…
Q: please write introduction about AC Circuits – Series and Parallel connected Circuits
A: Given introduction about AC Circuits – Series and Parallel connected Circuits.
Q: (b) Explain recent trends in electrical power generation.
A: Electrical Power generation
Q: Write the procedure steps for paralleling two DC generators T TTArial
A: when the power requirements are higher then it is not possible to supply high power demand using…
Q: Q#2 _Demonstrate the key elements of wind turbine? Discuss the importance of these elements in terms…
A: Following are the main components of horizontal Axis wind turbine: 1)Rotor blades 2)Hub 3)Nacelle…
Q: Derive net RMS EMF induced in the stator winding, when there is an influence of 1st, 2nd harmonics.
A: EMF induced due to first harmonics is = RMS value is =
Q: Discuss the significance current limiting reactor in power system
A: A current limiting reactor consists of a large inductance compared to its ohmic resistance
Q: Draw and explain block diagram of Thermal power plant and write few advantages and disadvantages?
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Q: Discuss the main characteristics and energy conversion methods of the offshore wind turbine and…
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Q: Discuss the importance of power plant engineering and design in the actual field?
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Q: Provide brief answer only. What is a variable DC source? Give symbol and applications.
A: Variable dc source is an Electrical/Electronics device which is used to supply the variable DC…
Q: Describe the common operating principles of conventional power generation systems. Besides, list the…
A: Conventional power generation systems in which the production of electrical energy from coal, oil,…
Q: Discuss the operating principle of the hydroelectric power plant
A: Hydroelectric power plant is an electricity generating power plant which uses potential energy of…
Q: riefly explain environmental issues in regard to thermal power plants
A: A thermal power station is a power plant with a steam-driven primary mover. Water is heated, then…
Q: When it comes down to generating electricity, what similarities do hydro-dams, nuclear, coal,…
A: In hydro dams flowing water produce the kinetic energy in turbine which further converted to…
Q: What is Coal? Why it is considered as non-renewable energy source?
A: There are two forms of energy namely renewable and non renewable sources of energy. The sources that…
Q: Derive the expression for power developed due to wind energy
A: Let v is the speed of wind, d is the height of the blade, Cross section area of blade is given by,…
Q: What is voltage stability? How is reactive power linked with the voltage stability in the power…
A: Voltage stability is characterized as the capacity of the power system to support fixed passable…
Q: why do you think renewable energy sources are important?
A: The explanation is as follows.
Q: In practical terms, explain the implications of the inverse relationship that exists between power…
A: The power system has to transmit power from the generation side to the load side. For this purpose,…
Q: Draw and explain a typical power curve for a wind turbine and write the definition of the four…
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Q: What is AC and DC Power Source? ( 5 sentences each )
A: AC refers to an Alternation Current DC refers to Direct current
Q: Briefly explain TWO (2) disadvantages of low power factor.
A: Power factor angle (φ) is the angle between the voltage (V) and the current (I)
Q: A) With a neat sketch discuss the working of a stand alone system for power generation and explain…
A: A stand-alone power system is a system that is not connected to the grid power and depends only on…
Q: Imagine a world where alternating current (AC) electric power systems were not discovered at all.…
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Q: Explain the environmental impacts of Solar power plant
A: The sun is greatest source of the energy. It gives us the immense resources which is able to…
Q: What is the physical meaning of the reactive power and the power triangle? Explain how
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Q: b. How we can improve the overall efficiency of a steam power plant?
A: The problem is based on power system subject. Look below the methods of improving efficiency of…
Q: What do you mean by Ferranti effect? How does it affect voltage regulation? Which one among…
A: 1) Ferranti effect :- The transmission line under No load or lightly loaded condition is subjected…
Q: Q9. What is the basic principle that a cage winding can be represented by a three-phase winding?…
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Q: Discuss the difficulties in bringing renewable energy to the commercial market.
A: Renewable energy is energy that is generated from renewable resource eg. Wind , sunlight.
Q: Briefly explain the Vertical integration in electricity regulation
A: The traditional definition of a "vertically integrated" in electricity regulation is that which owns…
Q: Explain ne breakdown liquid Discuss the different methods of measuring high dc voltages. What are…
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Q: What are the main social and environmental concerns of wind power.
A: The explanation is as follows.
Q: 4. (a) What is leading and lagging power factor? and discuss about the reasons for the low power…
A:
Q: What is the market for electricity?
A: ANSWER MARKET FOR ELECTRICITY Electricity market is…
Q: Explain different components of small hydroelectric power system and their design considerations.
A: hydroelectric powerplants are used in order to generate electricity from hydraulic energy (energy…
Q: Discuss about generator modeling and drive the formula for the real and reactive power supply it .
A: Generator modeling - The simplest sophisticated modeling in a system stability tool are generator…
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- Explain the concept of FACTS (Flexible Alternating Current Transmission Systems) devices. How do they enhance the control and stability of power systems? Provide examples of FACTS devices and their applications.What is the main direct cause of reactive power in AC system?A. Resistance of transmission linesB. Inductance and capacitance in the loadsC. Ideal transformer connected in the systemD. Power produced by generatorWhat are FACTS (Flexible Alternating Current Transmission Systems) devices, and how do they enhance the control and stability of power systems?
- 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. . --10. In a transformer, the leakage flux of each wind- ing is proportional to the current in that winding because (a) Ohm's law applies to magnetic circuits (b) leakage paths do not saturate (c) the two windings are electrically isolated (d) mutual flux is confined to the core. 11. In a two-winding transformer, the e.m.f.per turn in secondary winding is always.........the induced e.m.f. power turn in primary. (a) equal to K times (b) equal to 1/K times (c) equal to (d) greater than. 12. In relation to a transformer, the ratio 20: 1 indi- cates that (a) there are 20 turns on primary one turn on secondary (b) secondary voltage is 1/20th of primary voltage (c) primary current is 20 times greater than the secondary current. (d) for every 20 turns on primary, there is one turn on secondary.How to generate 480V three phase 400Hz ac from 230V three phase 60Hz ac source? (Please specify the power components you pick, such as transformers, dc-dc converter, dc-ac converter and/or ac-dc converter, how these components are connected and the key parameters of these components, such as the turns ratio of transformer and the duty cycle functions for the converters.)
- What are FACTS (Flexible Alternating Current Transmission Systems), and how do they improve the control and efficiency of power transmission?Discuss the concept of load shedding in power systems. What are the reasons for load shedding, and how can it be mitigated?What effects are produced by change in voltage? 1. Iron los..........varies approximately as V². 2. Cu loss..........it also varies as V² but decreases with an increase in voltage if constant kVA output is assumed. 3. Efficiency...........for distribution transformers, efficiency at fractional loads decreases with in- crease in voltage while at full load or overload it increases with increase in voltage and vice- versa. 4. Regulation..........it varies as but decreases with increase in voltage if constant kVA output is assumed. 5. Heating.........for constant kVA output, iron temperatures increase whereas Cu temperatures decrease with increase in voltages and vice-versa.
- O ElecTech DCmc... -> Third Year 2020-2021 Medical Instr. Tech. Eng. Dept Subject: ElecTech DC M/C Collection Dr. Harith Collection of exercises on d.c. machines From (d.c. machines, Ranson & Webb) Exercise 1: 4/iv If a 4-pole d..c. generator supplies a total current of 50A, what will be the current per conductor in the case of (i) a lap winding, (ii) a wave winding. Exercise 2: 5/iv A 50 kW, 200V, 6-pole generator has a lap connected armature of 450 conductors. Determine the e.m.f generated and the current flowing in each conductor. Also determine the corresponding values for wave connection. Exercise 3: 1/vii Calculate the flux in a 4-pole generator with 722 armature conductors generating 500 V when running at 1000 r.p.m, if the armature is (i) lap connected,(ii) wave connected. Exercise 4: 3/vii Calculate the e.m.f of a bi-polar machine with 1000 armature conductors when running at 1200 r.p.m, if the flux is 0.02 Wb. Exercise 5: 4/vii A 4-pole machine has an armature with 60 slots…Q4: A power distribution station consisting of 100OKVA, 4500V/225V, and 50 cycles per second single-phase core type mutual inductance equipment is to have an approximate electromotive force per turn of 15V and operates witha maximum flux of1.4T. Based on the above scenario justify what will be the values of turns, currents, and cross-sectional area of the core? Analyze the range of load resistance of this equipment. If the load resistances are very high discuss the various methods on its heat reduction process.OR e) What is BILS? Explain their significance in power system studies.