A meter is used to measure the energy consumed by a load of 20A, 230V at 0.5 power factor. For one unit of energy the meter makes 250 revolutions. Then, percentage of error when meter makes 268 revolutions is calculated as, a. -53.39% b. -53.19% C. -53.09% d. -53.29%

Q: Wind-turbine units are rated at 8 KW in a rated wind speed of 14 m/s. The stage efficiencies are Cp…

A: Find the diameter of the wine turbine Output power P= 8kW Wind speed 14m/s Find the turbine…

Q: An energy meter revolves 190 revolutions of disc for a unit of energy. Find the number of…

A: Need to find the number of revolution for the given load conditions then find error

Q: s a current of 40A at 220V. If 800 W is dissipated in the form of heat in the motor, how much power…

A: A self-excited DC shunt motor, also known as a shunt wound DC motor, is a form of self-excited DC…

Q: A wind turbine gives maximum output put of 1MW at a wind speed of 15m/s. Refer to the above wind…

A: To find the swept area by the wind turbine (A)

Q: Determine the wind energy per unit mass if the winds speed is 39 Km/Hr.

A: according to question we have to find the value of wind energy per unit mass.

Q: A steam power station spends OMR 16000 per annum for coal used in the station. The coal has a…

A: In this question we need to find a unit generated per annum of the given power plant.

Q: Read the question carefully and match the answer with its respective question: It has been predicted…

A: given present load factor = 0.67 present year maximum demand = 6 MW load factor = average…

Q: 1 KW 0.5 KW rotor 57 KW 25 KW JU 60 KW In the diagram above of the DFEM, having 6 poles with main…

A: A power flow diagram is an important tool to analyze the performance of any system. when input power…

Q: The amount of electrical power drawn at a particular time is measured in kilowatts, while the amount…

A:

Q: 1/A Hydroelectric Plant has a Turbine and Generator with an efficiency of 65%. If the dam has a Head…

A: Given data  Turbine and Generator with an efficiency  65%. If the dam has a Head H= 70 feet and the…

Q: What is the linear velocity of a car that ?drives 140 km in 2 hours

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

Q: 3. The Electric Company provides electric power service to a three state region in the country. The…

A: As we have given : Q=4500-100P kWhP1=15 cents/kWhP2=10 cents/kWhP3=5 cents/kWh

Q: In KFC company the electrical generator installed provides a power output of 120 MW with an…

A: Given output power=120 MWEfficiency η=66%

Q: A power plant has two units with the following cost characteristics: Rs C = 0.7P? + 220P, + 2500 %3D…

A:

Q: Briefly discuss, how the energy consumptions for operations of a fork lifter could be justified.…

A: Increasing your business profits involves controlling costs and optimizing operations. Limiting…

Q: Find the wind speed in K/h needed to generate 4641.7Kw for a wind turbine with a height of 32.13m…

A: Given data, Power generated P = 4641.7 KW Height h = 32.13 m  Density ρ=6.125 kg5 m3=1.225 kg/m3,

Q: A meter is used to measure the energy consumed by a load of 20A, 230V at 0.5 power factor. For one…

A:

Q: A power station has a maximum demand of 15 mW, a load factor of 0.7, a plant capacity factor of…

A:

Q: A steam turbine generator is designed to generate 5.5MW of electrical power at a 6300V, 50HZ and…

A:

Q: Draw the daily load curve and load duration curve for a power station with any arbitrary loads you…

A: The curve showing the variation of load on the power station w.r.t time is known as a load curve.…

Q: A wind turbine that is 80 meters tall with a blade length of 160 ft will be used to generate…

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

Q: A particular area can be supplied either by hydro station or steam station. The following data is…

A:

Q: power factor of 0.8(-) operating at

A: The motor is a rotating device which convert an electrical power into mechanical output.  The types…

Q: Problem Statement: For a 50MW power plant, with a cycle efficiency of 44% do we lock in a long-term…

A: The power system has to transmit power from the generation side to the load side. For this purpose,…

Q: The power converted from the wind into rotational energy in the turbine is 1.7 MW. Determine the…

A: To find the blade length( L )  Given Power P = 1.7 MW Wind speed v = 36 kmph Power coefficient Cp =…

Q: The information in the table below gives information about energy use in a typical house. A typical…

A:

Q: ) You have a 4 HP motor with a power factor of 0.8(-) operating at 100 Vrms. What is the value of…

A: Given data: P=4 HPpf=0.8

Q: Cost of a 600 kW wind turbine is $ 550000. Other initial costs including that for installation and…

A: Given Power PR =600 kW capacity factor =CF =0.25 number of years n=20 interest rate I=5% =0.05 land…

Q: An industry consumes (x+100) kW at 0.7 p.f. lagging with an annual consumption of 40,000 units. The…

A:

Q: The wind turbine gives the following data: Blade length, l = 47 m, Wind speed, V= 28 Km/Hr, Air…

A: blade length l=47 mwind speed=28Km/Hrair density,=1.23kg/m3power co-efficient Cp=0.52

Q: Question 1: A power system network with a thermal power plant is operating by four generating units.…

A:

Q: Q2: A: A hydro-electric station is operated with a mean head (h) of 30 m and consume (discharge…

A: In hydro electric power plant, the potential energy of water is used to generate electricity. It is…

Q: Calculate energy available in 5 Kg wind, if the power available at the rotor of a wind turbine is…

A:

Q: A diesel-electric power plant is operated by an industrial firm to supply its daily power…

A: Diesel-electric power plant  A diesel power station is a generating station that uses a diesel…

Q: Estimate the power required in the United States during the year 2050, in GW, and the energy…

A:

Q: 1. Incremental cost fuel cost is GHC per megawatt hour  for two units in a plant are given by…

A: Incremental fuel cost for both loads are determined as shown below

Q: A consumer has annual consumption 7,00,800 units. If his maximum demand is 200 kW. The load factor…

A: Given, A consumer has annual consumption 7,00,800 units. Maximum demand is 200 kW

Q: Complete the table giving your answers to two decimal places. Reactive Specific Power Power…

A: Milk shed: Given details are P1=6200W.pf=0.75 lagging. The reactive power is calculated as…

Q: Type of load M | 0.218 RM/kWh S UTi) Determine the monthly (30 days) electricity bill of the house.…

A:

Q: An energy meter measure the amount of power consumed by the load with respect to time. It is…

A: In this question , we will find percentage error in energy meter..

Q: The percent values of the voltage, current, impedance, and volt-amperes for a given power system are…

A:

Q: 7. The incremental fuel costs for two generating units A and B of a power plant are given by the…

A: (a) For economic loading the incremental fuel cost of the two generating units should be equal. Thus…

Q: Below is the power curve of hydroelectric, wind and coal-fired power plants and all three data on…

A: Given data: The power curve of hydroelectric, coal and wind-driven power plant. a) (i) Energy cost…

Q: 4. Determine the maximum power output of a real wind turbine which has a power coefficient equal to…

A: The power output of real wind turbine for the given data is determined as shown below

Q: The reservoir area of ​​the hydroelectric power station is spread over an area of ​​4000 square…

A:

Q: A customer is offered power at Rs 50 per annum per kVA of maximum demand plus 5 paise per unit. He…

A: a consumer is offered power at 50 per annum per kva of maximum demand plus 5 paise per unit

Q: An electric lift is required to raise a load of 5 tonne through a height of 30 m. One quarter of…

A: We have an electric lift with, load or mass (m) = 5 tonne Height (h) = 30 m Time taken = 27 Minutes…

Q: 9. A 40-hp motor drives a hoist with which is capable of lifting a 50kN load to a height of 6 m in…

A:

Q: f ?(?) = 160cos50? V and ?(?) = −20sin(50? − 30°)A. Calculate the instantaneous power and average…

A: Consider the equation. v(t)=160cos(50t) V The equation of the current is, i(t)=-20sin(50t-30°) A

Q: A wind turbine that is 80 meters tall with a blade length of 160 ft will be used to generate…

A: In the question,  A wind turbine that is 80 meters tall  a blade length = 160 ft= 48.768meter The…

Electrical Power Generation

In an electric power generator, one type of energy is converted into electrical energy. Power-generating systems are simply a combination of potential or stored energy that is converted to provide kinetic energy, which, in turn, generates electrical energy for use in engines, lighting, heating, and other benefits of modern life.