What is power factor? what are the causes of low power factor and how do you improve the power factor?

Q: Q 1 (a) Define voltage regulation of a generator. How its voltage regulation may be found by MMF…

A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…

Q: Which type of wind turbine has a higher cut-in speed and lower efficiency? O a. VAWT- drag type O b.…

A: Which type is wind has higher cut in speed and lower efficiency

Q: The speed regulations of two 800-kW alternators A and B, running in parallel, are 100% to 104% and…

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Q: b) Briefly explain TWO (2) disadvantages of low power factor.

A: 1. Increases the conductor size For  Three Phase AC Circuit the power  = P = √3 V x I CosФ So…

Q: Q1: What does happen if we change two currents? Q2: What does happen if we have a three-phase four…

A: to find the answers in the below steps

Q: Explain the effect of load power factor on the transmission efficiency? Subject Power Transmission…

A: Effect of load power factor on transmission efficiency - If load power factor will be low then load…

Q: What is the correct notation for a load factor? a) Ω b) ∞ c) ∑ d) ⅄

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Q: Name three methods that can be used to improve the power factor of a plant

A: Need of Power factor improvement: Low power factor increases the losses in the line due to high…

Q: For a two finite machines, inertia constant combines like the impedance connected in series. Select…

A: For two finite machines, inertia constant (H)

Q: (a) What is the resistance of a 220-V AC short circuit that generates a peak power of 96.8 kW? (b)…

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Q: 3.Discuss the differences between Pelton, Francis, and Kaplan turbines.

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Q: O What is the difference between AC and DC coupling?

A: Coupling is the process where we are giving the supply to the any electric circuit may be amplifier…

Q: . What is the significance of power factor? Explain it with help of power triangle.

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Q: A load consisting of induction motors is drawing 40 kW average real power from a 110-V (RMS), 6 Hz…

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Q: . What are the various losses in an induction motor? On what factors do they depend

A: The fallowing are the various losses that occur in an induction motor:

Q: Prob.2. Two identical 2000 kVA alternators operate in parallel. The governor of first machine is…

A: Using droop characteristics of two generators calculate loading on the two generators.  The machine…

Q: An existing dc three wire system is to be converted into a 3phase 4 wire system by adding a fourth…

A: Same supply and load voltages, balanced condition and unity power factor   1) DC three wire system…

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 what is a stiff supply system ? What is its importance in harmonic environment? ARC

A: To explain the stiff supply system

Q: Power factor is the ratio of True or Real power to

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Q: 6. A 3-phase AC generator is supplying power to a load of 3200kW at 2300V and a power factor of 60%.…

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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: Q3:B: Name general types of DC generators and make a sketch of their connections

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Q: 5. Why the efficiency of large size alternator should be larger than that of small size?

A: Because conducting material have wide contact with atmosphere in large size alternator, the heating…

Q: Explain in your own words and your own understanding (avoid plagiarism) why there's a need to do…

A: Power quality is fundamental for productive gear activity, and force factor adds to this.  Power…

Q: a) What is leading and lagging power factor? and discuss about the reasons for the low power factor.…

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Q: 1-Nose point in the PV Curve of an alternator gives you the information about a. Intersection of…

A: Nose point :- It is the locus point of critical voltage and maximum power of the alternator.

Q: 1) Principle and features of different methods for measuring three-phase power. 2) Discuss the…

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Q: Two, 3phase alternators connected in parallel are driven by a hydraulic turbine whose speed- load…

A: Given Two three phase alternators connected in parallel are driven by hydraulic turbineThe…

Q: Two generators, each having no-load voltage of 500 V, are connected in parallel to a constant…

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Q: What is low power factor wattmeter and what is its use?

A: The instrument which measures the very low factor is known as the low power factor wattmeter (LPFW).…

Q: 2 AC generators operating in parallel, supply 2500kW to a load at a lagging power factor of 80 %. If…

A: In this question, 2 AC generators operating in parallel, Total load = 2500kW at lagging power…

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: Assume two DC generator is connected to a load via DC bus. Now briefly explain how the power…

A: For the parallel operation of DC generator, The most stable DC generator is, Shunt DC generator is…

Q: Draw and explain a typical power curve for a wind turbine and write the definition of the four…

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Q: Give your background about the AC systems from single phase and three phase systems to their…

A: AC system with single phase and three phase systems

Q: a) b) The value of excitation current required for full load current at 0.7 pf lagging…

A: Synchronous generator converts mechanical energy to electrical energy. The OCC curve is drawn…

Q: What was the effect on power factor of adding more capacitance? What was the effect on reactive…

A: The capacitor is the device that is also used to improve the power factor of the system.

Q: v) Define the term of degree of compounding in DC generators. What are the applications of different…

A: Degree of compounding is defined by the number of turns in series field winding and shunt field…

Q: (B)- Draw the power flow diagram of d.c generator and give the mathematical Put the input power in…

A: The power flow diagram of the dc generator is shown below:

Q: please write introduction of Power and Power factor in AC Circuits

A: We need to tell about the power and power factor in ac circuit

Q: Q3. Draw the curve showing the effects of increasing load on different types of dc generators

A: Form Load characteristics of DC generators. let, V → Terminal voltageEg → Generated EMFφsh → Shunt…

Q: Is there a difference between the phase windings resistances, if so, what does it mean? Please…

A: Insulation Resistance: For the electrical protection part, a protection opposition (IR) instrument…

Q: Q9. What is the basic principle that a cage winding can be represented by a three-phase winding?…

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Q: 4. (a) What is leading and lagging power factor? and discuss about the reasons for the low power…

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Q: What is power loss

A: Most of human energy requirement is meet by generating electrical energy. Once electrical energy is…

Q: 4. What for brushes are employed in DC generator?

A: DC Generator: The device that converts mechanical energy into electrical energy is called DC…

Compensation Techniques

The compensation techniques are the methods that are employed in the electrical control systems to enhance the performance of the system. The performance are generally affected by the factors like lag in the compensating devices, slow response of the system of the components like sensors used in the control system. The basic compensation technique involves lag compensation, lead compensation or the combination of the both.