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How electric trains get electric supply?
OpenCS Electrical And Electronics asked 1 year ago • Electrical Industrial Drives
137 views0 answers0 votes
Different types of drones?
OpenAnonymous asked 2 years ago • Electrical Industrial Drives
212 views0 answers0 votes
Design a closed control loop for speed regulation of the separately excited DC motor for the following set of disturbances?
Openchetan shidling asked 4 years ago • Electrical Industrial Drives
350 views0 answers0 votes
What is Slip Speed Control in induction motor?
OpenChetan Shidling asked 4 years ago • Electrical Industrial Drives
401 views0 answers0 votes
What is even harmonics in electrical engineering?
OpenChetan Shidling asked 4 years ago • Electrical Industrial Drives
279 views0 answers0 votes
What is half wave symmetry?
OpenChetan Shidling asked 4 years ago • Electrical Industrial Drives
311 views0 answers0 votes
Analysis of IM Fed from Non-Sinusoidal Voltage Supply?
OpenChetan Shidling asked 4 years ago • Electrical Industrial Drives
330 views0 answers0 votes
What is Unbalanced Voltages in electric drives?
OpenChetan Shidling asked 4 years ago • Electrical Industrial Drives
286 views0 answers0 votes
A 3 phase, 400 V induction motor is fed from variable frequency drive, when the frequency was 50 Hz the speed of the motor was 950 rpm, and now frequency is changed to 37.5 Hz what would be the motor speed.
Opencs asked 4 years ago • Electrical Industrial Drives
272 views0 answers0 votes
A 3-phase, 5 kW, 440 V, 0.8 rated power factor (lagging), 50 Hz, 6-pole, Y-connected synchronous motor has negligible stator winding resistance and synchronous reactance of 6 Ω. Calculate (i) Torque angle at full load (ii) Pull out torque (iii) Armature current and power factor at half the rated torque and (iv) Torque when operating at upf and 150% of rated field current.
Opencs asked 4 years ago • Electrical Industrial Drives
1077 views0 answers0 votes
A 3-phase, 5 kW, 440 V, 50 Hz, 4-pole, Y-connected synchronous motor has stator winding resistance of 0.2 Ω, synchronous reactance of 8 Ω and a rated field current of 1 A. When operating at full load the power factor is unity. (i) Calculate the torque angle when operating at full load (ii) Pull-out torque and power, (iii) Power factor, armature current and efficiency at half rated torque, and (iv) Field current to get unity power factor at half the rated torque.
Opencs asked 4 years ago • Electrical Industrial Drives
1353 views0 answers-3 votes
What is self controlled synchronous motor drive?
Opencs asked 4 years ago • Electrical Industrial Drives
276 views0 answers0 votes
What is permanent magnet (PM) synchronous motors?
Opencs asked 4 years ago • Electrical Industrial Drives
284 views0 answers0 votes
What is Wound field synchronous motor?
Opencs asked 4 years ago • Electrical Industrial Drives
296 views0 answers0 votes
Why power factor can not be controlled in permanent magnet motor?
Opencs asked 4 years ago • Electrical Industrial Drives
253 views0 answers0 votes
What is plugging in electric drives?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
316 views0 answers0 votes
What is dynamic braking in electric drives?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
329 views0 answers0 votes
What is regenerative braking in electric drives?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
369 views0 answers0 votes
Explain the multi-quadrant operation of dc separately excited motor fed from fully controlled rectifier for the following schemes. Single fully controlled rectifier with a reversing switch. Dual converter?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
734 views0 answers0 votes
Explain the motoring control and regenerative braking of chopper control of separately excited dc motor?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
500 views0 answers0 votes
With a neat sketch explain the method of counter current braking for a DC shunt motor, and also draw its speed-torque characteristics?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
341 views0 answers0 votes
Explain regenerative and dynamic braking of DC motor. Give their merits and demerits?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
259 views0 answers0 votes
Distinguish between active torque and passive torque?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
902 views0 answers0 votes
Explain the speed torque conventions?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
389 views0 answers0 votes
What is quadrant diagram? Explain the quadrant diagram for hoist drive system?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
261 views0 answers0 votes
Obtain the fundamental torque equations of a motor load system?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
268 views0 answers0 votes
What is electric drive? Mention the various types of electric drives and bring out their salient features?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
244 views0 answers0 votes
What is electric drive and why it is electric drive is required?
OpenCS Electrical And Electronics asked 4 years ago • Electrical Industrial Drives
272 views0 answers0 votes

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