A mini-hydroelectric power plant is under a head of 275 feet. The turbine efficiency is 0.85 and the generator efficiency is 0.80. If the turbine speed is limited to 450 rpm, calculate the generator kW output.

A mini-hydroelectric power plant is under a head of 275 feet. The turbine efficiency is 0.85 and the generator efficiency is 0.80. If the turbine speed is limited to 450 rpm, calculate the generator kW output.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...

See similar textbooks

Related questions

Q: 230V shunt motor delivers 37hp at the shaft at 1120rpm. If the motor has an efficiency of 89% at…

A: Efficiency = output power/ input power. 1 HP = 746 watts. Given output power 37 HP So output power…

Q: A 500 KVA,3.3 KV,50 Hz,600 rpm,3 phase salient pole alternator has 180 turns/phase. Calculate the…

Q: A 220V shunt generator is being powered by 36.5 Hp prime mover. if the armature resistance is 0.025Ω…

Q: Calculate the blade length of a wind turbine rotor which produces a maximum power of 2.1 MW at a…

A: The max power is 2.1 MW The wind speed is 3.7 Km/Hr The air density is d=1.23 kg/m3 The generator…

Q: A. 4,800 watts B/9,600 watts C. 2,400 watts D. 480 watts A factory takes 50 kW at 0.75 lagging power…

A: In this question we need to choose a correct option.

Q: An ideal 120V 2HP motor draws an apparent power of 1800w from the source. Determine it's power…

A: In this question the apparent power and active power are given ,so as we know power factor is the…

Q: A three-phase induction motor runs delivering 9 kilowatts to its load at efficiency of 88 %. If the…

A: given output power = 9 kw efficiency = 88% therefore input power = output/efficiency…

Q: shunt generator with a capacity of

Q: The ohmmeter registers the value of the resistances as follows: Ra= 0.02 ohms; Rf= 80 ohms; Rse=0.03…

A: To determine the load current delivered in a short shunt compound generator

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

A: Large alternator have more efficiency than a small size alternator, these efficiency gain are mostly…

Q: A parallel generator gives KWD 260 volts at a speed of 1100 revolutions per minute, if the product…

A: In the given question there are two cases given. 1. when motor draws 5 amp current then speed =…

Q: Sample Problem The following information is given in connection with a 10 kW, 220 V long shunt…

A: Given parameters are: Power Output, Po=10kW, Terminal Voltage, Vt=220V, Field Resistance, Rf=120Ω…

Q: A hydro generator on the Jordan Valley has a rating of 1 MW, 1000 rpm. Then, the number of rotor's…

A: Given: A hydro generator in Jordon valley has a rating of 1 MW , 1000 RPM . To find the number of…

Q: In a given DC motor, the output power is 30 HP, and the copper losses are 1.62 KW. If the rotational…

A: Converted power is the developed power in armature. Efficiency=out put powerinput power to motor…

Q: Two 3300 V star-connected alternators running in parallel supply the following loads : 800 kW at…

A: Given, (i) The active power, P1=800 kW The power factor, cosφ1=1 (ii) The active power, P2=600 kW…

Q: A three-phase induction motor runs delivering 9 kilowatts to its load at efficiency of 88 %. If the…

A: This is a simple question based on general logical reasoning and electrical machines. In this we…

Q: 14.1 H.P. is equivalent to a) 0.746 W b) 0.746 kW c) 7.46 W d) 7.46 kW 15 The difference between…

A: As per the guidelines of Bartley we supposed to answer first three mcq question only.

Q: A 400V, 3-phase Induction motor has output of 30HP and operates at power factor of 0.85 lagging with…

A: Given: A 3 phase induction motor having, Line voltage, VL = 400 V Output power = 30 Hp =…

Q: In a motor-generator set, calculate the number of poles required in the motor to convert AC 60 Hz…

A: In this question , we will find no of poles of motor with given motor generator set data...

Q: A three-phase induction motor runs delivering 9 kilowatts to its load at efficiency of 88 %. If the…

Q: 2. Why do you keep the alternator speed constant in this experiment? 3. What are the main effects of…

A: In this solution we discuss about speed of an alternator, effects of losses, stray load losses.

Q: A 50 MVA, 11 kV, 3-phase generator has a stored energy of 400 MJ. Its inertia constant is?

A: Given a 3-phase generator with, MVA rating, S = 50 MVA Stored kinetic energy, K.E. = 400 MJ

Q: Electric Machine; check image, all question there. The efficiency of 25 kW, 300 V round rotor…

A: An AC motor is an electrical machine which takes AC electrical input energy and produces mechanical…

Q: 63 G5 K

A: Definition: Short circuit MVA is equal to its MVA rating divided by its own per unit impedance or…

Q: A 25cps single-phase, 8-pole, alternator with 725 mWb flux per pole has 288 slots. The machine coil…

Q: A three-phase induction motor runs delivering 9 kilowatts to its load at efficiency of 88 %. If the…

Q: A 30kW series generator has an efficiency of 88% when operating at rated load. If the stray power…

Q: A 2500 KVA, 3-phase, 60 hz,6.6 KV wye connected alternator has a field resistance of 0.45 ohm and an…

Q: The shaft of a three-phase synchronous generator is rotating at 3000 RPM synchronous speed. This…

A: In this question , we will find efficiency of generator.....

Q: 1) The magnitude of the resultant flux in two phase supply system is equal to: A. В. Pm C. Pm D. m…

A: Since you have asked multiple objective questions , so we will solve first three question for you.…

Q: Calculate the energy required for a geared dc motor to lift a 2200-1b load through 50ft in 10…

Q: The shaft of a three-phase synchronous generator is rotating at 3000 RPM synchronous speed. This…

A: Principle of Machine: In any electrical machine either it's a DC machine or AC machine, the EMF in…

Q: A 3phase induction motor running with 2.5% slip takes 100 kW from the mains. If the stator copper…

Q: The shaft of a three-phase synchronous generator is rotating at 1800 RPM synchronous speed. This…

A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…

Q: The first question: An induction motor rotates at a speed that gives a slip factor of 20 percent.…

Q: Two alternator A and B, with ratings of 250 KW and 450 KW respectively. If the no load voltage is…

A: In this question we need to find a terminal voltage of alternator when the total output is 575 KW.

Q: A 2,500 kVA, three-phase, 60 Hz, 6.6 kV wye-connected alternator has a field resistance of 0.45 ohm…

Q: Calculate the blade length of a wind turbine rotor which produces a maximum power of 1.6 kW at a…

Q: .A 110-V dc motor draws a current of 30A and is located 500 ft from the power source. What is the…

A: In this question, Choose the correct option What is value of source voltage Vs?

Q: A long shunt generator supplies a load of 5.5 kW at 110 V. Shunt field. series field and armature…

Q: 0.3: An 10 KV, 1000 KVA star-connected alternator has a resistance of (2.5) 2 The following data are…

A: Given, 10 KV, 100KVA star connected alternator. Ra = 0.5 Ω Field current 48 60 132 168 216…

Q: A 220V series generator has an armature resistance of 0.4Ω. If the generated emf is 230V and the…

A: In this question we need to find a what is the power (in watts) delivered to the load?

Q: . Two 3300 V star-connected alternators running in parallel supply the following loads : 800 kW at…

Q: Calculate the blade length of a wind turbine rotor which produces a maximum power of 4.1 kW at a…

Q: The motor rotates quickly, giving a slip factor of 20 percent. The output power is 36.8 kW and the…

A: Rotor cupper losses = developed power - rotor input. Stator input = rotor input +stator losses.…

Q: In a given DC motor, the output power is 30 HP, and the copper losses are 1.62 KW. If the rotational…

A: Output power = 30 HP copper losses are 1.62kw Rotational losses = 2236.5w

Q: In a given DC motor, the output power is 45 HP, and the copper losses are 2.005 KW. If the…

A: As per the guidelines of Bartleby we supposed to answer first question only for remaining questions…

Q: A factory load consists of the following : (i) an induction motor of 150 h.p. (111-9 kW) with 0-7…

Q: A 500-KVA 1-pahse alternator has an efficiency of 90% at full-load. If the load power factor is 0.85…

Q: A 25kW series generator has an efficiency of 85% when operating at rated load. If the stray power…

A: Given: 25 kW series generator. Efficiency is 85% when operating at rated load. Stray power loss is…

Question

100%

A mini-hydroelectric power plant is under a head of 275 feet. The turbine efficiency
is 0.85 and the generator efficiency is 0.80. If the turbine speed is limited to 450
rpm, calculate the generator kW output.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

A find Power of Pen stock ) B I How many Mw con be assumed the Power of generator? suggest the Power of the design
A 12 V generator has an internal resistance of 0.05 ohm. Two loads are connected in parallel to its terminals, one drawing a 12 A current and the other dissipating energy at the rate of 200 W. What is the terminal voltage of the generator with this load? Ans. 0.82 volts
An 8.2kW seriesd generator has an armature resistance is 0.25 ohms with a generated voltage equal to 4212.43 V. Determine the series field resistance should be installed in this machine in order to supply a load at 400V.
10 kW, 230 V, d.c shunt generator is operating at rated condition with 80% efficiency. Input power and the total loss are respectively
The voltage generated by a dc generator is 230V, determine the generated emf if the speed is increased by 20% and the flux is simultaneously reduced by 10%.
2 What is geothermal energy? With the aid of a schematic diagram, describe how we can generate electricity using a geothermal energy-driven dry steam power plant. 3.Discuss the diﬀerences between Pelton, Francis, and Kaplan turbines.
A 30kW series generator has an efficiency of 88% when operating at rated load. If the stray power loss is 15%of the full load losses, calculate the maximum efficiency of the generator. Assume that the stray power loss isconstant and the other losses vary as the square of the load,
Iron losses in a DC machine are independent of variations in ) load voltage speed O All of these
Can V curve be plotted for an alternator. If yes then what is the difference between V curve of an alternator and V curve of a motor.
Suppose there is a load that needs 120W of power and is located 50ft from a generator with a total resistance of 0.2525 Ohms. The load can be designed to operate at 12V or 120V. Find the voltage drop and power losses in the connecting wire for each voltage and comment on the results.
An AC generator has a no-load voltage setpoint of 610 V and a full-load voltage of 595 V. What is the voltage droop of the machine?
What will be the value of the twiddle factor: W42