Answered: A 5000 hp 3-phase, induction motor…

A 5000 hp 3-phase, induction motor operates at 80% efficiency and 0.85 power factor lag. The apparent power drawn by induction motor is (Assume 1 hp = 746 W)

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter7: Alternating Current, Power Distribution, And Voltage Systems

Section: Chapter Questions

Problem 7RQ

See similar textbooks

Related questions

Q: Correct the power factor for a motor connected in series with a 120V RMS 60Hz power supply. The…

A: The power demand remains constant in a given circuit. Small power factors will cause more and more…

Q: A 10-poles, 3-phase alternator is coupled to an engine running at 600 r.p.m. It supplies 3- phase…

A: Synchronous speed = (120×frequency)/poles. Slip of motor = (synchronous speed-motor…

Q: A 50 Hz, four-pole turbo alternator rated at 20 MVA, 13.2 kV has an inertia constant H= 4 kW sec…

Q: 4. An induction motor draws 4.5 A at a 0.75 lagging power factor from a 208V, 60 Hz source. a) What…

A: Only one question is to be answered according to bartleby policy.

Q: Q 5 . An DC engine connected in compound-cumulative mode has the following values: Nominal…

A: The given circuit diagram is shown below: The magnetic curve is shown below:

Q: A 3-phase induction motor will not start from standstill if one of its lines is open. True False

A: The correct option is False. A 3-phase induction motor will not start from standstill if ine of it's…

Q: 11. A three-phase, wye-connected induction motor is current of 15 amperes at 80% power factor. A…

A: The complex power in an AC system is defined as the product of rms value of applied voltage and…

Q: For a power system having induction motor loads, an overexcited synchronous motor is also attached.…

A: Power system with induction motor load and overexcited synchronous motor

Q: A slow speed alternator works in parallel with a turbo-alternator, the combined output being 2500 kW…

A: We got two alernators one is slow speed alternator and another is turbo-alternator they both work in…

Q: An automotive alternator is rated 550 VA and 20 V. It delivers its rated voltamperes at a power…

A: Given data, The value of the Rate is 550 VA, The value of line voltage is 20V The given power factor…

Q: A generating voltmeter is required to measure voltage between 15kV and 250kV. If the indicating…

A: Given that:Measure voltage between: 15KV to 250 KV Imn=2μA Imax=35μA Speed of…

Q: i) What is Electromagnetic Induction (EMI)? Differentiate a transformer with a generator. ii)…

Q: k: It is desired to increase the pf of a 1-ph motor from 0.75 lagging to 0.95 lagging by using a…

A: Given, V=0.5 kV I=25 A cosθ1=0.75 cosθ2=0.95 where, V is the voltage, I is the current, cosθ1 is the…

Q: 8. A 3-phase induction motor is running at 2% slip. If the input to rotor is 1000 W, then mechanical…

A: Given, A 3-phase induction motor has Slip, s=2%=0.02 Input power, Pin=1000 W

Q: A 15hp full load induction motor (1hp=745.7W) operates at 480V, 60Hz and a delayed 0.7 power factor.…

A: GivenRating of induction motor15hp ,480 v , 60Hz , 0.7 PfCapacitor value=75μF

Q: In the TERCO power system simulator, the DC motor which is used as turbine has a rating of a. 4 KW O…

A: In tereco power system power system simulator,A DC machine is used as a simulating turbine has a…

Q: A 120 V, 60 Hz, single-phase induction motors 1 and 2 are connected in parallel. Motor 1 takes a…

Q: A three-phase induction motor has the following parameters: Uc 380V,

A: Three Phase Induction machine- This Induction machine comprises of rotor and stator as it basic…

Q: Determine the minimum diameter of the rotor required to generate 500kW of wind energy for a standard…

Q: A generating coil on a former 100mm long has 120 turns and rotates in a 1.4 T magnetic field.…

A: Given n=450 rev/minω=2πn60=2×3.14×45060=47.12 rad/sec Turns N=120 Magnetic field B=1.4 T Diameter…

Q: A 90MVA, 11KV water wheel generator has an inertia constant H = 3. The stored energy in the rotor at…

A: Given a water wheel generator has, MVA rating, S = 90 MVA Inertia constant, H = 3

Q: 1. A 3phase induction motor load draws a power of 13.33 KVA at 0.75pf from 460V source. If a…

Q: A 2-pole, 50 Hz, 11 kV 100 MW alternator has a moment of inertia of 10,000 kg.m². The value of…

A: Given, An alternator has Number of pole, P = 2 Frequency, f = 50 Hz Power rating, S = 100 MW Moment…

Q: A 400, 3-phase, 50 Hz, 4 pole induction motor takes a line current of 10 A with 0.86 pf lagging.…

A: Given, A 3-phase induction motor having, Line voltage, VL = 400 V Line current, IL = 10 A Power…

Q: 7. Calculate the coil inductance when a current of 4A in a coil of 800 turns produces a flux of…

A: (Q.7) Given, Current flows through a coil(I)= 4 A Number of turns (N)=800 Flux = 5 mWb

Q: 1. Calculate the coil inductance when a current of 4A in a coil of 800 turns produces a flux of…

A: Inductance of coil is Flux linkage in coilcurrent =N×Flux I where N…

Q: A relay has a 500-turn coil that draws 50 mA rms when a 60-Hz voltage of 24 V rms is applied. Assume…

A: Given data: N=500IRMS=50 mA=502 mAVRMS=242 V The expression for the v(t) is given as, vt=Vmcosωt=242…

Q: The power input to the 3-phase induction motor is 60 kW. The stator losses total 1 kW. Find the…

A: Given, A 3-phase induction motor having Power input, Pi = 60 kW Stator losses = 1 kW Slip, s = 3 %

Q: ductive load due to a bank of induction motors. The heating elements are considered purely resistive…

Q: A 2 pole 50 Hz, 13 kv, 200 MW alternator has moment of intertia 20000 kg-m2. What is the value of…

A: Given values are - Moment of inertiaJ=20000kg-m2RatingG=200MWf=50Hz

Q: uestion The windings of a three-phase AC motor are tested by measuring their with a multimeter. O…

Q: A 230V, 50HZ single-phase alternator supplies a fully-loaded 15kW induction motor. The full-load…

A: (i) The real power is the input power. The efficiency and the output power of the alternator are…

Q: A 2 pole, 50Hz, 11kV turbo alternator has a rating of 100MW, power factor of 0.7 lagging. The rotor…

A: Given that :-pole p=2voltage rating = 11kvreal power=100 mw=Rcost = 0.7 laggingmoment of inertia =…

Q: Load Sį is an Induction Motor that draws an RMS Current of 20.0 Amps at 0.82 PF Lagging. Load S2 is…

Q: The equivalent circuit of an induction motor is shown below. Calculate the no load power factor. Ro1…

Q: a) A single-phase induction motor, 14 hp, 180 V, 50 Hz, 3% slip has the following equivalent circuit…

A: Given parameters: Motor ratings, Rated power, P - 1/4 hp = 186.42 watt Vs = 180 V Frequency, f = 50…

Q: The generated or induced AC voltage is independent to the speed of the rotor. O True O False

A: Correct option is False we know they average Emf induced per conductor is (PFN) /60 volts Here P is…

Q: A wind turbine system has an average overall efficiency of 25%, what is the size of wind rotor is…

A: In this question, A wind turbine system average overall efficiency =25%, what is the size of wind…

Q: cuits in Fig. 25. An induction motor absorbs an apparent power of 400 kVA at a power factor of 80…

Q: The equation for 60 cycles current sine wave having RMS value 30 amperes, will be ____. Kindly…

A: The solution is given below

Q: A 3-phase induction motor runs at 3% slip and develops mechanical power equal to 10 kW. The air gap…

A: Given, A 3-phase induction motor runs at, Slip, s = 3 % = 0.03 Mechanical power, Pm=10 kW

Q: A coil draws 1875 watts when connected to a 165 V dc source. It consumes 30.72 watts when use on a…

A: I have checked every calculation but not getting 39 mH but my solution is 100% correct. There may be…

Q: 19. A fully loaded 15-hp Induction motor operates from a 480 V, 60 Hz line at an efficiency of 83…

Q: Calculate the blade length of a wind turbine rotor which produces a maximum power of 8 MW at a wind…

Q: 1. The magnitude of various voltage drops that occur in an altemator, depends 88 2. The power factor…

Q: A 3-phase induction motor delivers 74,600 watts while operating at an efficiency of 80 percent and a…

Q: A 405V, 3-phase, delta-connected induction motor has an output of 13.5kW at a p.f. of 0.9and…

Q: A three-phase induction motor is running at 4% slip. If the input to the rotor is 1,000 W, then the…

A: Given: A three phase induction motor, Running at slip, s = 4 % = 0.04 Input to the rotor,…

Q: Calculate the average power output of a wind turbine with blades of 85 m diameter operating in wind…

A: The length of blades = 85 m Mean speed, V=7 m/s Power coefficient, Cp=0.45 Density of air, ρ=1.22…

Q: The coil span for alternator having fractional pitch winding of 9/14 is .................. 96.00 O…

A: In this section let us try to answer the two different questions using the concepts from electrical…

Question

A 5000 hp 3-phase, induction motor operates at 80% efficiency and 0.85 power factor lag. The apparent power
drawn by induction motor is
(Assume 1 hp = 746 W)

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Alternating Current (AC) Series Motor and Universal Motor

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

The voltage regulation of alternator can be regulated by changing its rotational speed. O True O False
Determine the value of the capacitor to raise the power factor to unity when two induction motor must be connected to a capacitor . The first motor is twenty-four kilo watts and power factor 0.8, while the other is forty kilo watts and power factor 0.95.
Determine the value of the capacitor to raise the power factor to unity when two induction motor must be connected to a capacitor . The first motor is twenty-four kilo watts and power factor 0.8, while the other is forty kilo watts and power factor 0.95. Answer: 1.562 mF
An induction motor is rated 5 HP, 75% power factor and 220 V. What approximate size of capacitor (VAR) is necessary to raise the power factor to about 95%?
A 3-phase induction motor runs at 3% slip and develops mechanical power equal to 10 kW. The air gap power is 9.7 kW 10 17) kW 0.97 100.30 kW 10.03 kW
A triangle waveform with following specifications in Table B1. Table B1 RMS Voltage 50mV Number of cycles/second 100 i) Sketch the approximate triangular waveform with all specifications. ii) A transformer has primary coil with 100 turns and secondary coil with 120 turns. Estimate the current in the secondary coil, If the current in the primary coil is 4 Ampere
Calculate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a double layer winding with 16 turns per coil. The slots per pole per phase are 8 and the coil span is 20 slots. The phase spread is 60° and the flux per pole is 25.8x10−3 weber.
For figure (1)draw and calculate the voltages waveform across each half of secondary winding and across load when 100sin2π60t applied across the primary, then find PIV.
The rotor of a 4-pole ac generator is wound with a 200 turns coil. If the flux per pole is 5 mWb and the rotor runs at a speed of 1500 rpm, the rms value of the induced voltage for this AC generator is nearly?
Correct the power factor for a motor connected in series with a 120V RMS 60Hz power supply. The motor has an inductance of 200mH and an internal resistance of 30 ohms.
iii) A sine waveform with following specifications. RMS voltage 161.4V Time for ten cycles 0.02s Sketch the waveform.
A 230 V, 50 Hz single-phase induction motor takes a current of 25 A at a PF of 0.45 lagging. Calculate the value of capacitor required to correct the PF to 0.9 lagging.