A Load of 800 kW is operating at 0.68 leading power factor. Reactive power consumed by it is ____________ . a. 431.29 KVAR b. 647.94 KVAR c. 862.68 KVAR d. 129.06 KVAR

Q: A three-phase, wye-connected, 7 kVA, 230 V synchronous generator has a reactance of 7 ohms per…

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Q: (a) A single phase, unity power factor load takes 70 A at 25 kV. Using a base voltage of 60 kV and…

A: Per unit

Q: power station has this daily load curve data (a) Draw the daily load curve. (b) Draw the load…

A: Answer shown below

Q: e waveform shown. Find the ripple factor y, 6 volts and V2 = 12 volts.. t(seconds)

A: Since there are multiple questions uploaded within a single question, so solving the first question…

Q: A 132MW generator sends power to an industrial load at 132kV, 500A, Unity power factor. Excluding…

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Q: 2. Discuss any two methods for power factor improvement.

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Q: A power system network with a thermal power plant is operating by four generating units. Determine…

A: Here, we are having a power system network with four generating units. And we have to calculate the…

Q: A generating station has a connected load of 43,000 kW and a maximum demand of 20,000 kW, the units…

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Q: Complete the sentence The power factor must be close to To insure that losses in the transmission…

A: Power factor- It is ratio of real power to apparent power. Cosϕ=PSWhereP=real powerS apparent…

Q: A Gaussian random voltage X with zero mean and standard deviation of 4.5 volts appears across 100…

A: Given voltage across the capacitor has zero mean and standard deviation of 4.5 . Power in the…

Q: Explain why higher the load factor of the power station, lesser will be the cost per unit generated

A: Load factor is the ratio of average load to the peak load during a certain period of time. For a…

Q: A generator of 50 MVA, 4kV, Xd" = 25% and transformer of 50 MVA, 4 2 kV, delta/115 kV wye grounded,…

A: Given data, For generator, MVAold= 50 MVAVb(old)=4 kVXd''=25% For transformer, MVAold'= 50…

Q: A three-phase alternator connected in delta of 100 KVA and 635 volts is tested for OCC, SCC  and…

A: Given information about a three phase delta connected alternator is Rated terminal voltage Vt=635…

Q: 15. A residential AC power line voltage is 230 V. What are the average and peak-to-peak voltages? a.…

A: In this question we will find average voltage and peak to peak value for given wave with line…

Q: First Quiz A generating station has a maximum demand of 10 MW. Calculate the cost per unit generated…

A: The solution for the given plant's cost per unit can be achieved as follows.

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Q: The Hellmann formula describes? (a) solar irradiance depending on the thickness of the cloud cover.…

A: The velocity of wind varies with the height above the ground.

Q: Which of the following cannot be used as a base load power plant? O a. Nuclear O b. Wind O c.…

A: A power plant who is responsible for base load power, needs to be able to run continuously and…

Q: A generating station has a maximum demand of 20MW,a load factor of 60%, a plant capacity factor of…

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Q: A generating station supplied the following loads: 150 MW, 120 MW, 85 MW, 60 MW, and 5 MW. The…

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Q: For type-A chopper of. dc source voltoge = 230 V, load resistance = 102. Take a voltage drop of 2 V…

A: Given values are - VS=230VVD=2VDuty ratioD=0.4 Given that chopper is type-A so that it is step down…

Q: Q-1 Why Transformers rating in KVA. And not in KW?

A: As per the guidelines, we supposed to answer one question at a time so please ask other questions…

Q: The RMS voltage between conductor and ground is called  Choose correct answer : A) Line to Line…

A: The rms voltage between two lines is called line voltage or line to line voltage. The RMS voltage…

Q: A generating station has two 50 Mw units each running for 8,500 hours in a year and one 30 Mw unit…

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Q: 5.5 kW, 1450 rpm. L-type equivalent circuit and parameters for a continuous sinusoidal phase of a…

A: Given: 5.5 kW, 1450 rpm, line voltage 220 V and frequency 50 Hz. R1=0.21Ω, R2=0.18Ω,…

Q: Two impedances Z 1 and Z 2 , when connected separately across a 230 volt, 50

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Q: (a) Give the condition for the loss of load in a power generation system in terms of outages in…

A: We will discuss the condition of loss of load in terms of outages of generation units and also…

Q: As per the standards used in power system, even harmonics are limited to 25 percent of the odd…

A: The detailed answer is solved below according to the given parameters and instructions in the…

Q: Y-connected, 9. A 3-phase, circuited and operated at rated speed to produce rated current. When the…

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Q: Write the types of power factor improvement.

A: Power Factor: The ratio of real power to that of the apparent power is known as power factor.

Q: A substation rated 1250 kVA is operating at full-load at 0.8 pf lagging and to carry an additional…

A: Inductive element consume reactive power but Capacitive elements deliver reactive power into the…

Q: o the discussion about   Power measurement using Wattmeter, Ammeter and Voltmeter & Power…

A: Note: We are authorized to answer three subparts at a time since you have not mentioned which part…

Q: 8. The governor droop characteristics of two 300 MW and 400 MW alternators appearing in parallel are…

A: For the given data frequency at which total load will be 600MW is determined

Q: In order to improve the power factor of equipment operating at lagging power factor, a capacitor is…

A: In order to improve the power factor of equipment operating at lagging power factor, a capacitor is…

Q: Q1//A power plant has to meet the following load demand: Load A: 100 MW from 8 AM - 6 PM Load B: 150…

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Q: Description In the particular case of figure below derive both the critical clearing angle and the…

A: Critical clearing angle (δcr) Critical clearing angle is a maximum limit of angle seen by the…

Q: A surge of 100 kV travels along an overhead line towards its junction with a cable. The surge…

A: we need to determine magnitude of surge transmitted through cable.

Q: A generating station has a maximum demand of 25MW, a load factor of 60%, a plant capacity factor of…

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Q: Generate a conclusion on this following statements:  Determine and analyze the voltage regulation…

A: GIVEN:  resistive load               inductive load               capacitive load DETERMINE: the…

Q: Problem 9: Determine the complex power absorbed by each passive component in the circuit shown…

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Q: An electrical heating element that has an AC resistance of 100 Ohms is connected across a 240V AC…

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Q: A resistor of 3 ohms is in series with an inductor of 8 ohms inductive reactance. The combination is…

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Q: An alternator is supplying 300 kW at a power factor of 0.6 lagging. If the power factor is raised to…

A: An alternator Active power P =300 kW  a power factor of 0.6 lagging. If the power factor is raised…

Q: If the load draws a current of 2727 A, in phase, from a generator, which of the following statement…

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Q: L-type equivalent circuit and parameters for a continuous sinusoidal phase of a 5.5 kW, 1460 rpm,…

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Q: A 30 MVA, three-phase, wye-connected, 60 Hz, 13.8 kV synchronous alternator has negligible stator…

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Q: A substation rated 1250 kVA is operating at full-load at 0.8 pf lagging and to carry an additional…

A: Capacitor banks are used to increase the power factor by compensating the reactive power.…

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.