On increasing the starting torque of the induction motor, the maximum torque is also increased. a) False b) True
Q: Driving torque in electromagnetic induction relay is proportional to the square of current in-relay…
A: TRUE
Q: The power input to a 500V, 50Hz, 6 pole, 30 squirrel cage induction motor running at 975 RPM is…
A:
Q: Define the working of the Single phase induction motor with the properly labelled diagrams.
A: Working Principle of single Phase Induction Motor: Working Principle of single Phase Induction Motor…
Q: A 40Hp, 230V, 8 pole, 25HZ induction motor is running at 355 rpm at rate load. If the motor has the…
A: Given : Q=40Hp=29.828 kWV=230 VP=8f=25 HzN=355 rpmη=84.2%stator loss=1000 W Step 1: Calculate slip…
Q: Q14. A reluctance motor of 7.5 hp, 6-poles, 240V, 50 Hz is operating under rated load conditions…
A: Given data: V1=240 VV2=232.65 Vα1=35°α2=? For maintaining same torque the expression is the given…
Q: A starting torque of 80 Nm is developed in an induction motor by an auto-transformer starter with a…
A: Given data : T1 = 80 Nm T2 = ? Tapping N1 = 30 % Tapping N2 = 60 %
Q: 1-why the slipoccur in the induction motor? 2- why the slip is less than 1? 3-what the adrantage…
A: The explanation is as follows.
Q: Driving torque in electromagnetic induction relay is proportional to the square of current in relay…
A:
Q: The dc series motor has a linear torque- speed characteristics. O True O False
A: The dc series motor has a inverse torque-speed characteristics.
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: 5. After performing an experiment on the Capacitor Start induction motor to determine the effect of…
A: Capacitor Start induction motor is a type of induction motor. in which capacitor is used to start…
Q: Q13. An induction motor has a squirrel cage rotor which is made of cast aluminum. Due to serious…
A:
Q: When a cumulatively compounded long shunt DC motor is run as a generator, it will operate also as a…
A: Based on the arrangement of windings we will find statement is true or false.
Q: 7-19. A460-V, four-pole, 50-hp, 60-Hz, Y-connected, three-phase induction motor devel- ops its…
A:
Q: 14.2). Ind the upitance to Be (Electrical Machines-III, Indore Univ. July, 1977) winding for maximum…
A: Please find your answer below in step 2
Q: Q3: Fill in the blanks with an appropriate word, when loading a three-phase induction motor, which…
A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: The power input to a 500V, 50Hz, 6 pole, 30 squirrel cage induction motor running at 975 RPM is…
A:
Q: 15 Which of the following statements IS NOT CORRECT ? * O the starting current of the induction…
A: We need select in correct option for given statement .
Q: Τ ~ em 3772 P(me) R₁ (@-@rm)
A: Induction motor: It works on the induction principle. It is single-side exciting and runs less than…
Q: A 415V squirrel cage induction motor develops a torque of 40Nm. The torque developed by the motor if…
A:
Q: A Switched reluctance motor having o stator poles and 4 rotor poles. aligned and unaligned…
A: Solution:- Stator poles = 6 Rotor poles = 4 = Nr Aligned Inductances = 10.7mH Unaligned inductances…
Q: The power input to a 500V, 50Hz, 6 pole, 3 squirrel cage induction motor running at 975 RPM is…
A:
Q: A 3-phase, 60 Hz, 24 horsepower, 230 V, 4-pole squirrel cage induction motor operates at full load…
A: Given three phase motor f= 60 Hz P=24 HP =24 X (746) =17904 W V=230 V P=4 Full load efficiency =…
Q: 200 +21. If maximum torque of an induction motor is kg-m at a slip of 12%, the torque at 6% slip…
A: Given: The torque is 200 kg-m The maximum torque slip is sm=12% The objective is to determine torque…
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: Q.7 The following are the parameters of a 230V, 50 Hz, 4-pole, single phase induction motor R1=…
A: R1=2.2ΩX1=3.0 ΩR2′=3.8ΩX2′=2.1ΩNfl=1410 rpmPm=60 WXm=86Ω
Q: A 415V squirrel cage induction: motor develops a torque of 40Nm. The torque developed by the motor…
A:
Q: A 220-V-rms (line-to-line), 60-Hz, three-phase induction motor operates at 3500 rpm while delivering…
A: Given Nf=3500 rpmf=60 HzP=2 Calculating synchronous speed Ns=120fPNs=120×602Ns=3600 rpm Hence,…
Q: Q1: Choose the correct answer: 1- The disadvantage of starting an induction motor with a star-delta…
A: We are authorized to answer one question at a time, since you have not mentioned which question you…
Q: The stray load loss of a wound rotor induction motor can be determined by A. applying a…
A: The losses in the wound rotor induction motor are categorized into two types, these are Constant…
Q: A 460 V, 60 Hz, Star connected, 870 r.p.m., Eight poles, Three-Phase Induction Motor has the…
A: As per our guide lines I solved only 3 subparts..
Q: (a) A standard 3-phase, 10-pole, squirrel-cage induction motor is rated at 460 V, 50 Hz. We want the…
A: In this question, Find the voltage and frequency if the no load speed No= 300rpm . Rated voltage…
Q: An induction motor has a short circuit current that is 6 times the full load current. At full load,…
A: It is given that: Isc=6×Iflsfl=4.3 %=0.043
Q: What type of DC motor would you prefer to be used in future coming electric vehicles? Give…
A: Electric vehicles are very useful to control the pollution for survival of future generation. The…
Q: At standstill condition , the slip of induction motor is 1. Select one: O True O False
A: Given At standstill the slip of induction motor is 1
Q: Define the working of the single phase induction motor with the properly labelled diagram
A:
Q: A 7.5kW, 415V, 50HZ, 4 pole, star connected induction machine is connected to a 3 phase inverter…
A: Given data: 4 pole, 50 Hz machine Rotor speed = 555 rpm Rotor current = 4 A Rotor inductance = 4.51…
Q: Determine the torque speed characteristic of the following induction machines: A 460V, 15HP, 60HZ ,…
A: The solution is given below
Q: 1.) Why are the rotor rods of squirrel cage induction motor placed in a crosswise manner? 2.) What…
A: The rotor bars of the squirrel cage induction motor is skewed because of the various advantages.
Q: A 4-pole ,400 V, 50 Hz wound-rotor induction motor has the following circuit model parameters: R =…
A: According to the question we have: P=4,V=400V,R1=0.3Ω, R'2=0.25Ω, X1=X'2=0.6Ω, X0=35Ω We will plot…
Q: Example -6. A three-phase, 60-Hz, four-pole induction motor runs at a no-load speed of 1790 r/min…
A: Number of poles P = 4 Frequency f = 50 Hz No load speed is given as, N0=1790 rpm Full load speed is…
Q: The parameters of a three-phase, 50 Hz, 6-pole, 400 V star connected induction motor are r1 = 0.3…
A: given data in the question: stator side resistance = 0.3 ohm stator side reactance = 0.4 ohm rotor…
Q: A 380 V, 60 Hz, Star connected, 870 r.p.m., Eight poles, Three-Phase Induction Motor has the…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
Q: Q2/ The gross power absorbed by the reverse and forward fields of a single-phase induction motor is…
A:
Q: Briefly describe how the speed varies as the mechanical load applied to the squirrel-cage induction…
A: Assume that the load is connected with the motor and load at the shaft of the motor is increases.…
Q: A Vconnected, 400 V, four-pole, 50 Hz induction machine has the following parameters Xs=1.32, Xr=12,…
A: A 3 phase induction motor has all parameters. Find the input power, power factor and output power…
Q: P7) When a 3-phase induction motor connected in Delta, it develops 25 hp at full-load speed of 1700…
A:
On increasing the starting torque of the induction motor, the maximum torque is also increased.
a) False
b) True
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- 16 In the speed current characteristics of DC series motor, the speed is decreasing when the current decreases. Select one: True FalseThe power input to a 500V, 50Hz, 6 pole, 3 squirrel cage induction motor running at975 RPM is 40kW. The stator losses are 1kW and friction and windage losses are 2kW.Find the output power of the motorThe parameters of a three-phase, 50 Hz, 6-pole, 400 V star connected induction motor are r1 = 0.3 ohm, x1 = 0.5 ohm, r’2 = 0.15 ohm and x’2 = 0.2 ohm. The voltage and frequency of the induction motor is controlled by a power electronic converter (inverter). Calculate the required inverter output frequency and voltage to drive the induction motor load at 0.2 the rated speed of the motor and calculate the current drawn by the motor for that case. The formula for the maximum slip is given below:
- 2.b) Explain the speed control of the induction motor with the PWM method. please write it with computerA 220-V-rms (line-to-line), 60-Hz, three-phase induction motor operates at 3500 rpm while delivering its rated full-load output power. Estimate the no-load speed and speed regulation for the motor.The power input to a 500V, 50Hz, 6 pole, 3 phase squirrel cage induction motor running at975 RPM is 40kW. The stator losses are 1kW and friction and windage losses are 2kW.Find the output power of the motor.
- A 2.3 kV, three phase, 50 Hz,SCIM gas a starting torque of 640 Nm, And starting current of 600 A. What will be the per unit tapping of auto transformer to reduce the starting Current from mains to 150 A Also find the corresponding starting torque.A 3-phase, 4-pole induction motor drives a conveyor which needs a constant torque over its entire operating speed range. The per-phase rotor resistance referred to the stator side is 0.74 2. The motor is fed from a 3-phase inverter-based adjustable speed drive, with a volt per hertz control scheme. When the fundamental component of the inverter line output voltage is 400 V (rms), 50 Hz, the motor operates at its rated speed of 1470 rpm. The electromagnetic torque produced by the motor can be approximated as: (a) Estimate the rated mechanical power output and air-gap flux of the motor. (b) It is proposed to reduce the power consumption of the drive by operating at half of the rated speed. Estimate the required fundamental line voltage and frequency of the inverter (c) Assess the effect of the stator winding parameters on the air-gap flux found in Part(a)A75 hp, 3-phase, 6-pole, 60 Hz induction motor delivers full load torque at 5% slip. If the load torque is increased by 15% as allowed by the service factor on the nameplate, determine the new speed and horsepower delivered
- In DC Shunt motor, when the load increases Torque decreases. Select one: True False- What are the main parts of an single phase induction motor?Explain the function of each. - Explain the function of Ballast and Starter in the discharge lamp?! - Can we connect a 10A load to domestic socket outlet? Justify your answer. - Which type of MCB is used in motor control and why this type of MCB is chosen over other types?Q2. a) Why the slip of induction motor is never zero, b) What happens if the slip of induction motor is one, c)What is the value of the slip for an induction motor at no load and full load.