The torque–speed curve of a particular 10-pole induction motor is approximately linear for low values of slip either side of its synchronous speed. When used as a motor on a 50 Hz supply, its efficiency is 90% and it produces a mechanical output power of 25 kW at a speed of 550 rev/min. Estimate the power produced when the machine is connected to the same 50 Hz mains and driven by a wind turbine at 650 rev/min.

Q: 4. for three phase induction motor, the decreasing in the starting torque when the motor started by…

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Q: Discuss how the Torque is developed in an Induction Motor

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Q: What is the electrical angle in degrees if the developed reluctant torque attained maximum value in…

A: Solution: The reluctance torque of a salient pole synchronous motor is, Trel=V221Xq-1Xdsin2δ…

Q: The synchronous speed of a 3-phase and 6-pole induction motor is 1200 rpm. By keeping the frequency…

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Q: 4. Discuss the following (rated torque, starting torque, break down torque).

A: There are three type of torques in the motor: 1. Rated torque 2. Starting torque 3. Breakdown torque

Q: A -3-phase, 8-pole induction motor is required to be operated at about 700 rpm. If supply frequency…

A: For a 3-phase induction motor no. of poles=8 speed,

Q: A four-pole, three-phase induction motor rotatesat 1,700 r/min when the load is 100 N-m. The motoris…

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Q: What is the main difference between modern and classical induction motors?

A: Solution Induction Motors are generally utilized as a part of the modern application because of a…

Q: Derive the speed torque characteristics of induction motor from its equivalent circuit and also…

A: We have given the following problem

Q: 6. What should be done for an induction motor to be able to produce the highes possible torque?

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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: A wound rotor, induction motor has a rotor resistance of 0.6 ohms per phase and a rotor leakage…

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Q: Besides low cost, what are five desirable characteristics for an induction motor?

A: Characteristics of an induction motor besides slow cost are as follows 1)  It has high pull out…

Q: None

A: Step 1:Step 2:

Q: A three-phase, 50-Hz, 6-pole induction motor develops a useful torque of 120 Nm at full-load, while…

A: Given : Pole = 6  Frequency =50 HZ  Useful Torque = 120 Nm Rotor Frequency = 2 HZ torque Lost = 10…

Q: A 230V, 50 Hz, 4-pole, single-phase induction motor is rotating in the clockwise (forward) direction…

A: Given- 230 V, 50 Hz, 4-pole Single phase Induction motor, Speed N=1425 RPM, Rotor resistance- R2=7.8…

Q: 16   In the speed current characteristics of DC series motor, the speed is decreasing when the…

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Q: 7- A 6-pole, 50-Hz, 3-0 induction motor is running at 950 rpm and has rotor Cu loss of 6 kW. Its…

A: Given  Two multiple choice questions based on motors. Please find the below attachment for clear…

Q: Draw the typical speed-torque characteristic of the induction motor and expain it.

A: Torque of an induction motor depends on Slip Armature resistance  Voltage Reactance

Q: what is the value of the torque of the 60Hz 4-pole induction motor at 1800rpm? In real life…

A: Note: Slip Torque generation 0<s<1 Motoring Torque s=0 No Torque s>1 Generating…

Q: A 6-pole, 50hz, 3-phase induction motor has a fully load speed of 950 rpm. Its speed in Rpm at half…

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Q: R3 R1 R2 E1 E2 R4 Figure 2 With respect to circuit above, use the Mesh Loop Theorem to find the…

A: Apply KVL in two loops and than obtain two equations in terms of mesh currents and solve two…

Q: A 250 V series motor has an armature resistance of 0.2 ohm and a series-field resistance of 0.18…

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Q: What is of the 1800 rpm the value 4 pole induction of the torque induction motor at change the…

A: Since you have asked multiple questions, we will solve one question for you. If you want any…

Q: 23. As load is increased from no load to full load on a 3-phase squirrel-cage induction motor, what…

A: " Since you have posted a question with multiple subparts, we will solve the first three subparts…

Q: A 45-hp dc compound motor takes 75 A at supply mains. It operates at a speed of 500 rpm. The flux…

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Q: E.g. • 2. A 3 phase, 460 V, 10hp, 60 Hz, four-pole induction machine delivers rated output power at…

A: Dear, as per company guidelines we can answer only 3 sub-parts at a time, kindly post other…

Q: 23. The rotor of a 6 pole, 50 Hz, 3 - o induction motor has a resistance of 0.2 N per phase and runs…

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Q: K A unity negative feedback system has an open-loop transfer function G(s) s(s+10)'

A: Given values are - Gs=Kss+10FeedbackHs=1Damping ratioζ=0.3

Q: 4. A 3 phase,50Hz ,8 pole induction motor has a full load slip of 4%. The rotor resistance is…

A: It is given that: P=8f=50HzSfl=0.04r=0.001ΩphX=0.005Ωph

Q: The rotor of a 6 pole, 50 Hz, 3 - 6 induction motor has a resistance of 0.2 2 per phase and runs at…

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Q: A series DC motor has a series-field winding of 25 turns per pole. Its armature resistance is 0.15…

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Q: Q5// A: The below curve represents Ta/la characteristic of a dc series motor. Briefly discuss this…

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Q: Say Which of the following is the main purpose of commutating poles in DC machine ? To stabalise the…

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Q: 1.In order to have sparklesscommutation, the brushes should be placed along................. 2.D.C.…

A: 1. In order to have a sparkles commutation  , the brushes should be placed along MNA(magnetic…

Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.