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The variable frequency control provides good running and transient performance because of which features?
AnsweredChetan Shidling asked 6 years ago • 
1081 views1 answers0 votes
What is even harmonics in electrical engineering?
OpenChetan Shidling asked 6 years ago • 
1075 views0 answers0 votes
What is odd harmonics?
AnsweredChetan Shidling asked 6 years ago • 
1046 views1 answers0 votes
What is half wave symmetry?
OpenChetan Shidling asked 6 years ago • 
1066 views0 answers0 votes
Analysis of IM Fed from Non-Sinusoidal Voltage Supply?
OpenChetan Shidling asked 6 years ago • 
1078 views0 answers0 votes
What is Unbalanced Voltages in electric drives?
OpenChetan Shidling asked 6 years ago • 
997 views0 answers0 votes
Which of the following statements is incorrect?
Answeredcs asked 6 years ago • 
1572 views1 answers0 votes
What happens when we assign same values in two variables, is their address remains same?
Answeredchetan shidling asked 6 years ago • 
1289 views2 answers0 votes
How to convert values of int and float into complex number in python?
Answeredchetan shidling asked 6 years ago • 
1104 views1 answers0 votes
How to convert float value into int value in python?
Answeredchetan shidling asked 6 years ago • 
1090 views1 answers0 votes
Best for diploma students based on arduino?
Opencs asked 6 years ago
836 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 • 
3153 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 • 
2045 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 • 
1813 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 • 
1422 views1 answers0 votes
Any odd harmonics in the current of an induction motor will result in magnetic field which?
Answeredcs asked 6 years ago • 
2119 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 • 
1250 views1 answers0 votes
Consider the following conditions for an induction motor fed by variable voltage variable frequency drive,
Answeredcs asked 6 years ago • 
1028 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 • 
1016 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 • 
970 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 • 
1761 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 • 
1363 views1 answers0 votes
What are the types of speed control of induction motor?
Answeredcs asked 6 years ago • 
870 views1 answers0 votes
What is braking of induction motor?
Opencs asked 6 years ago • 
827 views0 answers0 votes
What is steady state analysis of Induction motor?
Opencs asked 6 years ago • 
922 views0 answers0 votes
What is wound rotor induction motor?
Opencs asked 6 years ago • 
842 views0 answers0 votes
What is Squirrel cage induction motor?
Opencs asked 6 years ago • 
851 views0 answers0 votes
What are the types of Induction motor?
Answeredcs asked 6 years ago • 
917 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 • 
2109 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 • 
2339 views0 answers-3 votes
Comparison between PMAC and BLDC motors?
Opencs asked 6 years ago • 
968 views0 answers0 votes
What is full form of SPMSM in motors?
Answeredcs asked 6 years ago • 
907 views1 answers0 votes
What is full form of IPMSM in motors?
Answeredcs asked 6 years ago • 
932 views1 answers0 votes
What are the advantages of IPMSM over SPMSM?
Answeredcs asked 6 years ago • 
1442 views1 answers0 votes
What are the disadvantages of permanent magnet (PM) motor?
Answeredcs asked 6 years ago • 
961 views1 answers0 votes
What are the advantages of PM motors?
Answeredcs asked 6 years ago • 
907 views1 answers0 votes
What are the applications of PMSM?
Answeredcs asked 6 years ago • 
1034 views1 answers0 votes
What are the types of PMAC Synchronous motors?
Answeredcs asked 6 years ago • 
1015 views1 answers0 votes
What is permanent magnet ac drives?
Answeredcs asked 6 years ago • 
1102 views1 answers0 votes
What is self controlled synchronous motor drive?
Opencs asked 6 years ago • 
992 views0 answers0 votes
What is hysteresis synchronous motors?
Opencs asked 6 years ago • 
850 views0 answers0 votes
What is synchronous reluctance motors?
Opencs asked 6 years ago • 
788 views0 answers0 votes
What is interior PM motors?
Opencs asked 6 years ago • 
790 views0 answers0 votes
What is surface mounted (PM) motors?
Opencs asked 6 years ago • 
824 views0 answers0 votes
What is permanent magnet (PM) synchronous motors?
Opencs asked 6 years ago • 
995 views0 answers0 votes
What is Wound field synchronous motor?
Opencs asked 6 years ago • 
1021 views0 answers0 votes
Why power factor can not be controlled in permanent magnet motor?
Opencs asked 6 years ago • 
954 views0 answers0 votes
What are the types of synchronous motor?
Answeredcs asked 6 years ago • 
1093 views1 answers0 votes
What are the types of speed control for switched reluctance motor?
Answeredcs asked 6 years ago • 
1032 views1 answers0 votes
What are the disadvantages of switched reluctance motor?
Answeredcs asked 6 years ago • 
1440 views1 answers0 votes
What are the advantages of switched reluctance motor?
Answeredcs asked 6 years ago • 
1071 views1 answers0 votes
What is Switched Reluctance Motor Drives?
Answeredcs asked 6 years ago • 
1087 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 • 
886 views1 answers0 votes
Which of the following is not true about Latch-up in CMOS circuits?
Answeredcs asked 6 years ago • 
885 views1 answers0 votes
In clocked CMOS logic, output in evaluated in?
Answeredcs asked 6 years ago • 
1400 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 • 
978 views1 answers0 votes
Pseudo-nMOS has higher pull-up resistance than nMOS device?
Answeredcs asked 6 years ago • 
916 views1 answers0 votes
Pull Down Network will conduct for all input combinations that requires output Y to be
Answeredcs asked 6 years ago • 
936 views1 answers0 votes
What is RC Extraction in CMOS VLSI?
Answeredcs asked 6 years ago • 
1216 views1 answers0 votes
What is full form of DRC in CMOS VLSI?
Answeredcs asked 6 years ago • 
936 views1 answers0 votes
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