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The variable frequency control provides good running and transient performance because of which features?
AnsweredChetan Shidling asked 6 years ago • 
1205 views1 answers0 votes
What is even harmonics in electrical engineering?
OpenChetan Shidling asked 6 years ago • 
1185 views0 answers0 votes
What is odd harmonics?
AnsweredChetan Shidling asked 6 years ago • 
1170 views1 answers0 votes
What is half wave symmetry?
OpenChetan Shidling asked 6 years ago • 
1181 views0 answers0 votes
Analysis of IM Fed from Non-Sinusoidal Voltage Supply?
OpenChetan Shidling asked 6 years ago • 
1180 views0 answers0 votes
What is Unbalanced Voltages in electric drives?
OpenChetan Shidling asked 6 years ago • 
1098 views0 answers0 votes
Which of the following statements is incorrect?
Answeredcs asked 6 years ago • 
1683 views1 answers0 votes
What happens when we assign same values in two variables, is their address remains same?
Answeredchetan shidling asked 6 years ago • 
1447 views2 answers0 votes
How to convert values of int and float into complex number in python?
Answeredchetan shidling asked 6 years ago • 
1218 views1 answers0 votes
How to convert float value into int value in python?
Answeredchetan shidling asked 6 years ago • 
1211 views1 answers0 votes
Best for diploma students based on arduino?
Opencs asked 6 years ago
934 views0 answers0 votes
A 440 V, 3-phase, 10 pole 50 Hz synchronous motor delivering a torque of 50/π Nm, delivers a power of
Answeredcs asked 6 years ago • 
3289 views1 answers-2 votes
An induction motor is used for a speed control application. It is driven from an inverter with constant 'V/F' control. The motor name plate details are as follows: 415 V, thee phase, 50 Hz, 2850 rpm. The motor is run with the inverter output frequency set at 40 Hz, and with half the rated slip. The speed of the motor is
Answeredcs asked 6 years ago • 
2155 views1 answers0 votes
A 500 kW, 6.6 kV, 50 Hz, unity power factor, 4 pole, star connected synchronous motor has synchronous reactance 15 Ω, and negligible stator resistance , rated field current is 10 A, what is the braking torque when the motor is under regenerative braking mode
Answeredcs asked 6 years ago • 
1940 views2 answers0 votes
A 3 phase, 4 pole, 50 Hz induction motor running at 1470 rpm is supplied with unbalanced voltage. What is value slip produced due to positive sequence component voltages and negative sequence component voltages
Answeredcs asked 6 years ago • 
1543 views1 answers0 votes
Any odd harmonics in the current of an induction motor will result in magnetic field which?
Answeredcs asked 6 years ago • 
2213 views1 answers-2 votes
3 phase, 6 pole, 50 Hz induction motor is operating with rotor resistance R2 = 0.2 ohm/ph and speed 950 rpm, now the motor has to operate at speed 800 rpm then what value of resistance to be inserted in rotor circuit so as to maintain load torque constant.
Answeredcs asked 6 years ago • 
1353 views1 answers0 votes
Consider the following conditions for an induction motor fed by variable voltage variable frequency drive,
Answeredcs asked 6 years ago • 
1135 views1 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.
Answeredcs asked 6 years ago • 
1117 views1 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 6 years ago • 
1087 views0 answers0 votes
A 3-phase , 5 kW, 440 V, 0.8 rated pf lagging 50 Hz, 6 pole star connected synchronous motor has negligible stator winding resistance and synchronous reactance of 6 Ω, the power angle at full load is,
Answeredcs asked 6 years ago • 
1866 views1 answers-1 votes
The maximum power delivered by 1500 kW, 3 phase star connected, 4 kV, 48 pole, 50 Hz synchronous motor, with synchronous reactance of 4 Ω/phase and unity power factor.
Answeredcs asked 6 years ago • 
1477 views1 answers0 votes
What are the types of speed control of induction motor?
Answeredcs asked 6 years ago • 
987 views1 answers0 votes
What is braking of induction motor?
Opencs asked 6 years ago • 
942 views0 answers0 votes
What is steady state analysis of Induction motor?
Opencs asked 6 years ago • 
1036 views0 answers0 votes
What is wound rotor induction motor?
Opencs asked 6 years ago • 
945 views0 answers0 votes
What is Squirrel cage induction motor?
Opencs asked 6 years ago • 
967 views0 answers0 votes
What are the types of Induction motor?
Answeredcs asked 6 years ago • 
1010 views1 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 6 years ago • 
2252 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 6 years ago • 
2460 views0 answers-3 votes
Comparison between PMAC and BLDC motors?
Opencs asked 6 years ago • 
1077 views0 answers0 votes
What is full form of SPMSM in motors?
Answeredcs asked 6 years ago • 
1018 views1 answers0 votes
What is full form of IPMSM in motors?
Answeredcs asked 6 years ago • 
1036 views1 answers0 votes
What are the advantages of IPMSM over SPMSM?
Answeredcs asked 6 years ago • 
1576 views1 answers0 votes
What are the disadvantages of permanent magnet (PM) motor?
Answeredcs asked 6 years ago • 
1068 views1 answers0 votes
What are the advantages of PM motors?
Answeredcs asked 6 years ago • 
1036 views1 answers0 votes
What are the applications of PMSM?
Answeredcs asked 6 years ago • 
1139 views1 answers0 votes
What are the types of PMAC Synchronous motors?
Answeredcs asked 6 years ago • 
1120 views1 answers0 votes
What is permanent magnet ac drives?
Answeredcs asked 6 years ago • 
1213 views1 answers0 votes
What is self controlled synchronous motor drive?
Opencs asked 6 years ago • 
1096 views0 answers0 votes
What is hysteresis synchronous motors?
Opencs asked 6 years ago • 
956 views0 answers0 votes
What is synchronous reluctance motors?
Opencs asked 6 years ago • 
890 views0 answers0 votes
What is interior PM motors?
Opencs asked 6 years ago • 
886 views0 answers0 votes
What is surface mounted (PM) motors?
Opencs asked 6 years ago • 
924 views0 answers0 votes
What is permanent magnet (PM) synchronous motors?
Opencs asked 6 years ago • 
1098 views0 answers0 votes
What is Wound field synchronous motor?
Opencs asked 6 years ago • 
1128 views0 answers0 votes
Why power factor can not be controlled in permanent magnet motor?
Opencs asked 6 years ago • 
1065 views0 answers0 votes
What are the types of synchronous motor?
Answeredcs asked 6 years ago • 
1199 views1 answers0 votes
What are the types of speed control for switched reluctance motor?
Answeredcs asked 6 years ago • 
1141 views1 answers0 votes
What are the disadvantages of switched reluctance motor?
Answeredcs asked 6 years ago • 
1569 views1 answers0 votes
What are the advantages of switched reluctance motor?
Answeredcs asked 6 years ago • 
1191 views1 answers0 votes
What is Switched Reluctance Motor Drives?
Answeredcs asked 6 years ago • 
1213 views1 answers0 votes
Which of the following is not an objective for using Euler's path to draw stick diagrams?
Answeredcs asked 6 years ago • 
986 views1 answers0 votes
Which of the following is not true about Latch-up in CMOS circuits?
Answeredcs asked 6 years ago • 
1002 views1 answers0 votes
In clocked CMOS logic, output in evaluated in?
Answeredcs asked 6 years ago • 
1517 views1 answers0 votes
In the equivalent circuit for PMOS, if the sheet resistance is 20Kohm and width of MOS is 4, then the Drain-Source resistance when the PMOS is ON is numerically equal to?
Answeredcs asked 6 years ago • 
1081 views1 answers0 votes
Pseudo-nMOS has higher pull-up resistance than nMOS device?
Answeredcs asked 6 years ago • 
1045 views1 answers0 votes
Pull Down Network will conduct for all input combinations that requires output Y to be
Answeredcs asked 6 years ago • 
1046 views1 answers0 votes
What is RC Extraction in CMOS VLSI?
Answeredcs asked 6 years ago • 
1344 views1 answers0 votes
What is full form of DRC in CMOS VLSI?
Answeredcs asked 6 years ago • 
1045 views1 answers0 votes
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