a) What applications / experiments are necessary to find the Rc parameter in the equivalent circuit given in Figure 1?

Q: 70 kW, 60 Hz, 480 V, 1182 rpm, 3-phase asynchronous motor at full load and 0.85 back power factor,…

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Q: (Q.1) With necessary examples, explain the operation of a differential relay. What are the…

A: Principle of Operation of a differential relay∙A differential relay is a relay which operates when…

Q: A three-phase, delta connected, 2-pole 1000V, 50 Hz asynchronous motor rotates at 2920 rpm. The…

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Q: Which of the characteristics given in the figure below is the efficiency-output of a DC shunt motor…

A: we know efficiency =Power outputpower input in dc machine power input = power output + losses and we…

Q: Sketch the cross-section of a reluctance stepper motor that has six stator poles and eight rotor…

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Q: A DC motor has forward transfer function as shown in figure 2(a) is configured in a unity feedback.…

A: Given: A DC motor has a forward transfer function as shown in the figure below is configured in…

Q: The primary leakage impedance and equivalent secondary impedance referred to stator at standstill of…

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Q: 75 kW , 60 Hz , 480 V , 1176 Speed(r/min) with full-load and 0.8 lagging power coefficient, a…

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Q: A 3000 V, 3 phase synchronous motor running at 1500 rpm has its excitation kept constant…

A: A synchronous motor has its excitation kept constant to no load voltage of 3000V. Therefore,…

Q: Label values; For a 3-phase, 14.4kW, 50Hz, 982 rpm, Y connected, 400V, 32 A, asynchronous motor with…

A: The solution can be achieved as follows.

Q: QA.3 A 380 V, 50 Hz, 6-pole, 960 rpm, star connected induction motor has the following parameters:…

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Q: Given the above approximate equivalent circuit for a 440VLL, 60 Hz, 3-phase, 1728 rpm, wye-…

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Q: A75 hp, 3-phase, 6-pole, 60 Hz induction motor delivers full load torque at 5% slip. If the load…

A: Given: P01=75 hpP=6f=60 Hzs1=5%=0.05τ2=1.15τ1

Q: A 1000KVA, 4160V (L-L), 3 phase, 60Hz synchronous motor has a synchronous reactance of 20 ohms and…

A: Given data: f=60 HzIf=150 A

Q: A 200V long-shunt generator delivers 100A, has an armature resistance of 0.05Ω, a series field…

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Q: Synchronous motor operating at leading PF. If the load increased, its field current If and power…

A: If Synchronous motor operating at leading PF. If load is increases. Then the rotor slow down…

Q: With the aid of power-load angle curves explain in detail the following: i. an electronic…

A: The curve which is formed between the power axis and load angle is known as power-load angle curve.…

Q: Discuss by your own words (You can use Arabic) without copy – paste from internet the following…

A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…

Q: 8. A 460 Vine-to-line, 6 pole, 3-Phase, Y-Connected, 60 Hz induction motor is rated for 100 Hp (74.6…

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Q: Cite applications of a two-station motor control.

A: In this motor is controlled by the two locations station 1 and station 2 and also can be start and…

Q: the values in the picture are taken from the experiments of 460V, 60Hz, 8-Pole, 200Hp, three-phase…

A: Equivalent circuit parameters for the given three-phase squirrel cage asynchronous motor is…

Q: (((How does an asynchronous motor behave when there is a load?))) this is what i want  read the…

A: For an Induction motor and based on the rotor construction, the induction motor is classified into…

Q: Single-phase equivalent circuit parameters transferred to the stator are given as R1 = 0.4 N, X1 =…

A: Given  V= 208 V R1 = 0.4 ohm X1 =0.8 ohm R2 = 0.3 ohm X2 = 0.9 ohm Xm = 40 ohm f = 60 Hz motor core…

Q: If a 60-Hz synchronous motor is to be operated at 50 Hz, will its synchronous reactance be the same…

A: Synchronous motor runs at synchronous speed.

Q: 37,3 kW, 440 V, 50 Hz Parameters of a 3-phase Y-coupled asynchronous motor; ?1 = 0,1 Ω, ?1 = 0,4…

A: Note: As per our policy, I have attempted the first three subquestions. Given data: R1=0.1 ΩX1=0.4…

Q: A three-phase, 30-hp, 60-Hz, 2200-V, 600 r/min, salient-pole synchronous motor has direct-axis and…

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Q: QUA65 Kw,3-phase ,Y-connected ,50HZ ,220V, cylindrical motor synchronous motor operates at reated…

A: NOTE- As per the rules we can answer only 3 sub-parts, please post the remaining sub-parts as the…

Q: Operating 3-ph synchronous motor with high field current, increases the magnitude of the point at…

A: Operating 3-phase synchronous motor with high field current, increase the magnitude of the point at…

Q: Draw and explain the operation of H-type with 4-switches per phase drive circuit and the drive…

A: A stepper motor is brushless dc motor that devide a full rotation into saveral equal steps. The…

Q: A synchronous motor has the following parameters: 1- Rated power, Pout 100 kw 2- Rated voltage, Vt…

A: As per the guidelines of bartleyby I need to answer first three subparts only so kindly post others…

Q: 5) Design and develop equivalent circuit model of a single phase Induction motor with the…

A: Induction motor working Principle When an ac supply is connected to a stator it creates a rotating…

Q: A 30 hp, three-phase, wye connected, 60 Hz, 360 VLL, synchronous motor is operating at 50% full…

A: Given data: Resistance = 2.5 Ω/phase The power = 3 hp Core loss = 1 kw Windage loss = 1.5 kw

Q: A 440-V, single-phase synchronous motor is drawing a line current of 50 A at 0.9 pf lagging, this…

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Q: A 3-phase induction motor, 440-V, 50-Hz, 6-pole, delta-connected has the following…

A: Question contained many subparts and each subpart has multiple subparts. We are authorized to answer…

Q: The equivalent circuit parameters of a 230-V, 1-phase, 6-pole, 60-Hz induction motor are: R1 = R2’ =…

A: Note: As per the policy we can solve only 3 sub-parts of a question, please re-upload the remaining…

Q: The armature resistance and armature reactance of a 3.5MVA, 11.5kV, Y-connected, 8 pole Synchronous…

A: The following parameters are given for a 3-phase synchronous motor: armature resistance Ra=6…

Q: a 220v dc shunt motor takes 5a and 40a at no load and full load respectively it has an armature…

A: Calculate the current in the field winding. If=220 V110 Ω=2 A

Q: A 3-phase, 440V, 60HZ, star connected Synchronous Motor has a synchronous reactance of 2.32 and…

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Q: With the aid of a diagram explain the principle of operation of a three phase asynchronous motor.

A: We know that when a three phase supply is provided to the stator, a 3-phase rotating magnetic field…

Q: Primary winding resistance of 460V, 25 HP, 60 Hz, 4-pole, Y-connected asynchronous motor, R1 = 0.65…

A: The data given in the question are : 460V, 25HP, 60Hz, 4Pole, Y connected, R1=0.65Ω, ZEQ=14.06∠30°,…

Q: Using the D.C. shunt motor no-load and full-load information given in the following table, determine…

A: The solution is given below

Q: idle running test of asynchronous motor Locked rotor test of asynchronous motor Briefly describe…

A: The asynchronous motor also knows as Induction motors. In order to determine induction motor…

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: In the experiment of finding the parameters of synchronous machine, the field winding should be *…

A: 1. In synchronous machine, field winding is connected with dc supply.

Q: A 415V, 50HZ, 3-phase induction motor supplies its rated power to a b) constant load. The rated…

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Q: The efficiency of a 17 kW, 4-pole, 50 Hz, three-phase asynchronous motor is given as 85%. For this…

A: Given P=17 Kw, P=4, efficiency n=85%, Stator copper losses = 900 W and friction losses=1100 W

Q: When the 3-phase star connected squirrel-cage asynchronous motor with 2-pole, 18.5 kW, 400V, 50 Hz…

A: Since there are multiple sub-parts uploaded within the same question, therefore solving first three…

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.