A 3300V, 3-phase, star connected synchronous motor draws a full-load current of 80 A at 0.7 of leading. if the stray losses total 5000W and the armature resistance are 3Ω and the resistance is 4Ω per phase  Find   The input power........watt The output power........watt The efficiency.

Q: 50 kw, 440V three phase, 6 pole 50 Hz asynchronous motor operates at 6% slip und conditions. At full…

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Q: Q1/Prove that the power developed by a three-phase induction motor is maximum when the equivalent…

A: The Thevenin equivalent circuit of a 3 phase induction motor can be represented as, now,…

Q: A three-phase 2Jhp 220V 60HZ six pole Y-connected squirrel-cage induction motor has the following…

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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: 436. A 230 V DC motor takes a current of 40 A and runs at 1100 r.p.m. If armature and shunt field…

A: Given a dc motor with, Terminal voltage, V=230 V. Load current, IL=40 A. Speed, N=1100 rpm. Armature…

Q: Three-phase 460-hp, 415 V, 4-pole, 50 Hz induction motor is operating at overvoltage of 480 V and…

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Q: The total losses of 3-phase induction motor at 4A armature current and 1.142 rotor external…

A: The solution can be achieved as follows.

Q: Q/ dc shunt motor 4 pole with 500 condcutor , wave running at speed 1000 r.p.m the resistance of…

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Q: For a 18600W 2400rpm DC motor, the following values are given: Ra=0.089 Q (value at room temperature…

A: Given: For a 18600 W, 2400 RPM DC motor, the following values are given: Ra=0.089 Ω at…

Q: A250 V, dc shunt motor has an armature resistance of 0.5 chmand a field resistance df 250 chm When…

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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: Q1/Prove that the power developed by a three-phase induction motor is maximum when the equivalent…

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Q: An 6.6 kV. three-phase star-connected synchronous motor is working at full load and draws a curren…

A: Given Data:A three-phase star-connected synchronous motor with,Line voltage Line current Armature…

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

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Q: 4) Sketch the speed current characteristic for a common DC motor and describe the motor performance.

A: We have to sketch the speed current characteristic for a common DC motor and describe the motor…

Q: 300 V D.C. shunt motor runs at 300 r.p.m. ,takes 10 A and induces the emf of 50V. The armature and…

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Q: A 220-V-rms (line-to-line), 60-Hz, three-phase induction motor operates at 3500 rpm while delivering…

A: From problem description we have: Vin = 220 V rms Iin = 8 A rms Nfull load = 3500 rpm f = 60Hz Pout…

Q: (. What will be the air gap power (in watts) developed by a 3-phase induction motor, whose ratings…

A: It is given that: Terminal Voltage=Vt=230 (line voltage)Vt(phase)=Vt3=2303=132.79 VOutput…

Q: Discuss the advantages of flux weakening operating regime in a DC motor.

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Q: A 460-V, 25-hp, 60-Hz, four pole, Y-connected induction motor has the following impedances in ohms…

A: Given  A 460-V, 25-hp, 60-Hz, four pole, Y-connected induction motor has the following impedances in…

Q: ...... 4. The eddy current loss of ac motor is 100W at SOH2. Its loss at 100HZ will be S B) A…

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.

Q: A 250V series motor runs at 500 rpm at rated load current of 75 A. The armature circuit has a…

A: It is given that: V=250 VN1=500 rpmIL1=Ia1=75 ARa+Rse=0.2 Ωϕ α Ia

Q: For a 18600W 2400rpm DC motor, the following values are given: Ra = 0.089 2 (value at room…

A: we have ωN=2πN60=2π×240060=80π=251.327 rad/secwe knowIa=PoutEMFsince Kv=0.851…

Q: A 3-phase, 415 V, 50 Hz induction motor draws 5 times the rated current at rated voltage at…

A: From the question, it is given that  Induction motor draws 5 times the rated current at rated…

Q: Calculate and plot the torque-speed characteristics for a four-pole induction motor. The motor…

A: Given: A 4 pole induction motor has the following parameter: rs=24.5 Ωrr =23 ΩXs = 10 ΩXr = 40 Ω Xm…

Q: induction

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Q: A four-pole induction motor drives a load at 2405 rpm. This is to be accomplished by using an…

A: The number of poles, P=4 The RPM of the induction motor, NR=2405 RPM The input voltage to the…

Q: A 440-V 50-Hz, 50-hp, a three-phase induction motor is drawing 50 A at 0.75 PF lagging. The rotor…

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Q: Sketch the torque versus speed characteristic for a series-connected dc motor.

A: The circuit diagram of the DC series motor can be drawn as  Thus for constant power motor : Ns α 1Γ…

Q: For a 18600W 2400rpm DC motor, the following values are given: Ra = 0.089 O (value at room…

A: consider the given question;

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: 1. Define the DC motor drive 2. Classify the DC motor drive 3. How can be controlling on the speed…

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

Q: 1) When a synchronous motor is running at synchronous speed, the damper winding Produces......…

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Q: then the frequency f =...

A: Given data: Number of poles (P)= 6 Synchronous Speed (Ns ) = 40 rev/sec Frequency (F)=? -…

Q: Derive the power equation for DC motor. Give the different loud-torgue :curves for each, DC. motors

A: Types of DC Machine Self Excited DC Machine Shunt DC Machine Series DC Machine Compound DC Machine…

Q: E) power factor of the motor? a) improves b) get poorer c) remains the same d) none of the above

A: One individual question is to be answered. E) In a three phase induction motor, when there is no…

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.