A 3-phase, 381-V, 60-Hz, 6-pole, Y-connected induction motor is running at 1120 RPM with a load torque of 284.6 N.m. The efficiency of the motor is found as 89 %. Find the electrical input power to the motor. Select one: O a. None O b. Pin = 29.7 KW C. Pin = 37.5 KW O d. Pin = 40.18 KW Clear my choice
Q: A three phase star-connected 5 kW, 440 V, 50 Hz, 4 pole, 1400 rpm squirrel-cage induction motor has…
A: Part (i): The synchronous speed is determined as:
Q: A 3-phase, Pin=27187.875 watt,975 RPM, Y- connected wound-rotor induction motor has the following…
A: Given data, Input power Pin=27187.875 W Speed Nr=975 rpm Equivalent parameters, R1=0.28 Ω, R2'=0.25…
Q: A 3-phase, 381-V, 60-Hz, 4-pole, Y-connected induction motor is running at 1722 RPM with a load…
A: In this question we need to find a input power of the given induction motor.
Q: A 180 watts, 110 V, 60 Hz, 4-pole, 1-phase induction motor has the following constants: R1= 2.02 Ω,…
A: Given: Supply voltage V1=110 V Supply frequency f=60 Hz Number of Poles P=4 Core loss Pc=24 W…
Q: A 230-V, 15-hp, 60-Hz, 6 pole, 3 phase induction motor driving a constant torque load at rated…
A:
Q: A 525-volt, 50-Hz, three-phase induction motor has the following specifications Rated power 75 kW…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
Q: A three-phase, 460-V, 50-Hz, four-pole Y-connected induction motor has the following parameters: Rs…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
Q: Q1: A: A 50-kW, 440V, 50-Hz single-phase induction motor has a slip of 6 percent when operating at…
A: Single Phase Induction Motor; 50 kW,440 V,50HZ slip=6% (operating at full load condition) friction…
Q: 1. The rated current of 15 hp, 220V sepurately excited DC motor is- a) 50.87A 2 If the load torque T…
A:
Q: 1. A 20 H.P., three-phase, 6-pole, 50 Hz, 400 V induction motor runs at 960 rpm on full load. If it…
A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…
Q: Is 0.20 1.8Ω IR IM 0.32 2502 40Ω Given the above approximate equivalent circuit for a 440Vu, 60 Hz,…
A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…
Q: A 300k W, 6600- v, eight poles, 60 Hz, three phase Y-connected synchronous motor has a synchronous…
A: Power output = 2×π×speed×Torque60. For motor Per phase Armeture induced EMF = per phase terminal…
Q: A 4 pole three-phase cage rotor induction motor running at full-load draws a stator current of 80 A…
A: A 4 pole three-phase cage rotor induction motor running at full-load draws a stator current of 80 A…
Q: C1 A 4 pole three-phase cage rotor induction motor running at full-load draws a stator current of 80…
A: 4 pole 3 phase induction motor. Full load stator current 80A, 0.83PF and 440V. Find the efficiency,…
Q: A three phase 220-V, 60 HZ, four-pole, Y-connected induction motor operating at 3% slip, has the…
A: Induction Motor: It is an asynchronous motor. In an induction machine we are providing AC electrical…
Q: single-phase induction motor employed for a mechanical work at a rate of 45 HP. Its electrical power…
A:
Q: A 440V, 3-phase , 50 Hz, 4-pole, 15 kW Y-connected induction motor has a full-load speed of 1425…
A: Given Data: frequency f = 50 Hz full load speed = 1425 Ns =120fP=120 x 504=1500 rpms = 751500=0.05E1…
Q: amount of power that the motor produces.
A: Three Phase Induction machine- This Induction machine comprises of rotor and stator as it basic…
Q: A 3-phase, 381-V, 50-Hz, 6-pole, Y-connected induction motor is running at 960 RPM with a load…
A:
Q: A 3-phase, 350 hp, 480V induction motor has the design life of 18 years at 100°C rise in conductor…
A:
Q: Problem 3 The synchronous speed of a 60 Hz, three-phase induction motor is 900 rpm. What is the…
A: Synchronous speed Ns = 120fP where f is the frequency in Hz and P is no. of poles .
Q: A 480 V, 3-phase, 50 Hz, 6-pole, slip-ring, Y-connected induction motors has the following…
A:
Q: Q2: Answer A or B: A) The maximum torque of 220 V three-phase four pole 60 Hz induction motor is 180…
A: In the question Find the slip, maximum torque, and speed if Frequency f= 50Hz and voltage V= 220V…
Q: A 34hp, 280V, 50HZ. 22 pole, 0.79 lagging power factor, 3 phase Y-connected, Squirrel-Cage Induction…
A:
Q: ctor of 0.83 lagging from a 440 V, 50Hz supply. Under this condition the stator loss is 4 kW, the…
A:
Q: A certain 208 V, 60 Hz, three-phase wye-connected, two-pole AC induction motor has the following…
A: Since, there is equivalent reactance given in the question, so the approximate circuit of the…
Q: The starting current of a 3-phase squirrel-cage induction motor with 60 kW, 380 V, 120 A, 2900 rpm,…
A: Given Induction motor P=60 kW V=380 V I=120 A Nr=2900 rpm pf =0.78 Ist=10 ×IFL Tst=1.5×TFL
Q: A Triac control of a three-phase, 30 kW, 400 V, 50 Hz, six-pole, star- connected squirrel-cage…
A:
Q: Problem 2 A 3-phase 2-pole induction motor is rated 190 V, 60 Hz, it is connected in Y, and has R2 =…
A: It is given that:P=2V=190VR2=6.6Ω,R1=3.1ΩXm=190Ω,X2=10Ω,X1=3Ω
Q: In a 6-pole, 50 Hz, single-phase induction motor, the gross power absorbed by the forward and…
A: In this question, We need to determine the shaft torque? Shaft torque = power/w
Q: 3. A 6 pole induction motor has the ratings: U₁ = 400 V, n = 970 rpm, ƒ№ = 50 Hz, the stator…
A: Given A 6 pole induction motor has the ratings: UN = 400 V, ny = 970 rpm, fv = 50 Hz, the stator…
Q: An induction motor of 30 HP, 220 V, 450% of the rated current with therated voltage and delivers…
A:
Q: Q4: A 380 V, three-phase, 60 Hz, 4 pole, star-connected induction motor runs at 25 rev/s on full…
A: The given data's are, Line voltage VL=380 V, Frequency is f=60 Hz, Number of poles is P=4, Full…
Q: Q1. (b) A single-phase, 120 V, 60 Hz universal motor is operating at 1800 rpm and its armature…
A: It is given that: V=120Vf=60HzRa=22ΩXL=100ΩWhen supplied by a 120V DC source:N=1800rpmIa=0.5A
Q: 5. (b) A 6-pole, 50 Hz, 3-phase induction motor running on full load develops a useful torque of 200…
A:
Q: a) In the experiment of performance study of three-phase wound rotor induction motor, what are the…
A: The slip shows the relative speed between the rotor and the stator magnetic field. It depends only…
Q: A 20 H.P., three-phase, 6-pole, 50 Hz, 400 V induction motor runs at 960 rpm on full load. If it…
A: The formula for ratio of starting torque to full load torque is TstTFL =13ISCIFL2Sfl where sfl…
Q: 3. A 12-pole, 420 V, 10 kW, 50 Hz, three-phase induction motor gave the following test results.…
A: Given data, Open circuit test data:- Voltage per phase (V)=242.49V OC test loss=500W Mechanical…
Q: A 50-hp, 200 V, 13.5 A, 1160 rpm., 60 Hz, wound rotor induction motor has the following…
A: It is given that: hp=50V=200 vI=13.5 AN=1160 rpmf=60 HzR1=2.22ΩR2'=2.97 ΩX1=14.2…
Q: A three-phase, 460-V, 50-Hz, four-pole Y-connected induction motor has the following parameters: Rs…
A: As per policy, we can solve first three parts only. Kindly resubmit the same with specifying other…
Q: A three-phase, 230 V, 30 hp, 60 Hz, six-pole induction motor is operating with a shaft load that…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
Q: Question 3 (a) Analysing the working principles of induction motors, explain why the rotor of…
A:
Q: A 380-V, 10-hp, 4-pole, 60 Hz, Y-connected induction motor gas a full- load slip of 7.2 percent.…
A: A 380- V, 10-hp, 4-pole, 60 Hz, Y-connected motor gas a full load slip : S=7.2 %S=7.2100=0.072…
Q: A 30 kW, 460 V, 1180 rpm, 3 -phase, 60 Hz, Y-connected induction motor has a full-load efficiency of…
A:
Q: 9.4.) A 10-hp, 4-pole, 440-V, 60-Hz, Y-connected, three-phase induction motor runs at 1725 rpm on…
A: We are authorized to answer one question at a time, since you have not mentioned which question you…
Q: (b) A 460V, 4-pole, 75-hp, 60 Hz, Y-connected, three phase induction motor has full-load torque at…
A:
Q: A 3-phase, 4 pole, 230 V, 60 Hz wound-rotor induction motor has both its stator and rotor connected…
A:
Q: A 3-phase, 4 pole 50 Hz induction motor provides 20 HP to a load at a speed of 1480 RPM. If the…
A: Given: 3 PhaseP=4f=50 HzNr=1480 rpmPo=20 HPPLosses=0
Q: A 3-phase, 4-pole, 50-Hz induction motor has a star-connected rotor. The voltage of each rotor phase…
A: Given f=50 HzP=4r=0.3 Ωx=0.8 ΩI2r=15 AE2=121 V Calculating synchronous speed…
Q: (a) A 400V, 50 Hz, wye-connected three-phase AC induction motor operates at the efficiency of 80% at…
A: Part (i): Write the expression for the three-phase input power and substitute the values,
Step by step
Solved in 2 steps with 1 images
- A four-pole induction motor drives a load at 2478 rpm. This is to be accomplished by using an electronic converter to convert a 400-V dc source into a set of three-phase ac voltages. Part A Find the frequency required for the ac voltages assuming that the slip is 4 percent. The load requires 2 hp. Express your answer to three significant figures and include the appropriate units. f= Submit Part B Value I = HA Request Answer Submit If the dc-to-ac converter has a power efficiency of 90 percent and the motor has a power efficiency of 80 percent, estimate the current taken from the dc source. Express your answer to three significant figures and include the appropriate units. HÅ Value Units Request Answer ? Units ?440 V, 50 Hz, 3-phase, wye-connected Induction Motor with the following particulars, R1= 0.075 ohm, X1=0.204 ohm, XM= 8.74 ohms, R2=0.063 ohm, X2=0.204 ohm NR @ full load=1560 rpm Find a. Stator current b. Pf of the stator c. Torque induced2. A 2-pole, 50 Hz induction motor supplies 15 kW to a load at a speed of 2950 rpm. a. What is the motor's slip? b. What is the induced torque in the motor in N-m under these conditions? c. What will be the operating speed of the motor be if its torque is doubled? d. How much power will be supplied by the motor when the torque is doubled?
- A 2 hp 50 Hz 3-phase 220 V delta wired induction motor has a full-load rated speed of 1400 rpm. a) How many poles does the motor have? b) Calculate its rated output torque. c) What is the slip at full load? d) If the current is 6.37 A with a power factor of 0.79 at full load, what is the efficiency of the motor? e) Calculate the torque and approximate speed at ½ load. f) If a variable frequency drive were used to control the speed of this motor, what is the approximate maximum speed for the load from e)? What frequency would the drive be set to? Please answer all subpart either dislike is ready please all subpart in short please2. The power input to a 3-phase induction motor is 40 kW. The stator losses total 1 kW and the friction and winding losses total 2 kW. If the slip of the motor is 4%, find (a) the mechanical power output (b) the rotor Cu loss per phase and (c) the efficiency. 3. The rotor e.m.f. of a 3-phase, 440-V, 4-pole, 50-Hz induction motor makes 84 complete cycles per minute when the shaft torque is 203.5 newton-metres. Calculate the h.p. of the motor. [(a) 37.74 kW (b) 0.42 kW (c) 89.4%] [41.6 h.p. (31.03 kW)] (City & Guilds, London) 4. The input to a 3-phase induction motor, is 65 kW and the stator loss is 1 kW. Find the total mechanical power developed and the rotor copper loss per phase if the slip is 3%. Calculate also in3. Calculate the torque develop of an induction motor supplying the following power and speeds:a. 5 hp, 900 rpmb. 10 hp, 750 rpmc. 20 hp, 500 rpm
- A 460 V, 25 hp, 60 Hz, four pole, Y-connected induction motor has the following impedances: R1 - 0.641 2 X1 = 1.106 2 X2 = 0.4640 Xm = 26.32 Mechanical loss is 100 W and core loss is 1 kW for a slip = 2.2%, find: R2 = 0.332 02 (a) The speed. (b) The stator current. (c) Power factor (d) The developed and output power (e) The developed and output torque (f) Efficiencypower input to a 415 V, 50 Hz, 6 pole 3-phase induction motor running at 975 rpm is 40 kW. The stator losses are 1 kW and friction and windage losses total 2 kW. What is the efficiency of motor? TheWhat is The efficiency of 3-ph induction motor. at (Is=4.5A, T=13 N.m, N=1333 rpm, Pph=864 watt ) ?
- An induction motor has a full load slip of 0.04. It's starting current 5 times its full load current. What is the ratio of starting torque to the full load torque? Select one: a. 2 b. 0.5 c. 0.2 d. 11. A 500 V. 6-pole, 60 Hz, 3-phase induction motor develops 20 Hp output when running at 1194 rpm. The power factor and efficiency are 0.87 and 80% respectively. The stator copper loss and core loss amount to 1500 W. What is the rotor copper loss? I1. A 690-V, six-pole A-connected induction motor runs at 1085 rpm when operating at a full load. Assume the friction and windage losses are 2.9 kW and core losses are 3.1kW. the motor parameters are: R₁ = 0.06 Ohm, R2 = 0.05 Ohm, X₁ = 0.21 Ohm, X₂ 0.19 Ohm, Xm = 18.5 Ohm. = a. Find the speed of the motor in both rpm and rad/sec. b. Find the air-gap power. c. Find the motor efficiency. 2. For the motor of problem 1 (top problem), find the following: a. Find the maximum torque and the slip in which it happens. What is the rotor speed at this slip in rpm? b. Find the start-up torque. c. Find the rotor resistance which would result in maximum torque occurring at the rotor speed of 950 rpm.