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All Questions › Category: Electrical Machines
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latest innovations in electrical machines
AnsweredChetan Shidling asked 3 years ago • 
1024 views1 answers0 votes
In an oil-filled transformer, the application of oil is for
AnsweredAman Rana asked 4 years ago • 
1289 views0 answers0 votes
How Power transformers are designed? (In terms of maximum efficiency at)
AnsweredRajasri Mundrathi asked 5 years ago • 
1207 views1 answers-1 votes
Crawling is a phenomenon mainly associated with
AnsweredRajasri Mundrathi asked 5 years ago • 
1221 views1 answers0 votes
The event of Magnetic Blocking between the stator and the rotor teeth is called
AnsweredRajasri Mundrathi asked 5 years ago • 
999 views1 answers0 votes
The armature of DC generator is laminated for
AnsweredRajasri Mundrathi asked 5 years ago • 
1225 views1 answers0 votes
The main purpose of providing tertiary winding in a 3-phase transformer
AnsweredRajasri Mundrathi asked 5 years ago • 
1340 views1 answers0 votes
Which of the following motor can operate on both type of P.F.? (lagging as well as leading)
AnsweredRajasri Mundrathi asked 5 years ago • 
1016 views1 answers0 votes
In an oil filled transformer, the application of oil is for
AnsweredRajasri Mundrathi asked 5 years ago • 
1091 views1 answers0 votes
Which generator is good for feeding long DC transmission lines?
AnsweredRajasri Mundrathi asked 5 years ago • 
1189 views1 answers0 votes
Where do we need to use a synchronous motor?
AnsweredRajasri Mundrathi asked 5 years ago • 
1383 views1 answers0 votes
Transformers are rated in kVA but not in kW because
AnsweredRajasri Mundrathi asked 5 years ago • 
1281 views1 answers0 votes
What is the role of the starter in 3-phase induction motor?
AnsweredRajasri Mundrathi asked 5 years ago • 
1213 views1 answers0 votes
The synchronous machine is also called a doubly excited machine, the reason for that is
AnsweredRajasri Mundrathi asked 5 years ago • 
1289 views1 answers0 votes
Armature reaction of an unsaturated DC machine is
AnsweredRajasri Mundrathi asked 5 years ago • 
1186 views1 answers0 votes
Which of the following machine have maximum efficiency?
AnsweredRajasri Mundrathi asked 5 years ago • 
1426 views1 answers-1 votes
Which of the following connections is good for 3-phase, 4-wire system?
AnsweredRajasri Mundrathi asked 5 years ago • 
1310 views1 answers-1 votes
Open circuit test is used to find_____.
AnsweredRajasri Mundrathi asked 5 years ago • 
1244 views1 answers0 votes
The back emf in D.C. machine______.
AnsweredRajasri Mundrathi asked 5 years ago • 
1063 views1 answers0 votes
The tap changer in an electrical power transformer is provided on_____.
AnsweredRajasri Mundrathi asked 5 years ago • 
1222 views1 answers0 votes
Which is the basic thing required to produce torque in any motor?
AnsweredRajasri Mundrathi asked 5 years ago • 
1449 views1 answers0 votes
Maximum loss in D.C. machine is due to __________.
AnsweredRajasri Mundrathi asked 5 years ago • 
1286 views1 answers0 votes
efficiency of PMSM is ____________.
AnsweredRajasri Mundrathi asked 5 years ago • 
1363 views1 answers0 votes
The effect of leakage flux in transformer is to__________.
AnsweredRajasri Mundrathi asked 5 years ago • 
1247 views1 answers-1 votes
What is common between induction generator and induction motor
AnsweredRajasri Mundrathi asked 5 years ago • 
1390 views1 answers0 votes
A synchronous motor is useful in industrial applications due to its property of______.
AnsweredRajasri Mundrathi asked 5 years ago • 
1479 views1 answers0 votes
why HV winding is always placed above LV windings in core type transformers?
AnsweredRajasri Mundrathi asked 5 years ago • 
1521 views1 answers0 votes
Buchholz relay is provided on the transformer to
AnsweredRajasri Mundrathi asked 5 years ago • 
1433 views1 answers0 votes
A DC generator without commutator is a
AnsweredRajasri Mundrathi asked 5 years ago • 
1642 views1 answers0 votes
The core of transformer must have
AnsweredRajasri Mundrathi asked 5 years ago • 
1513 views1 answers0 votes
For the same rating weight of D.C. machine will be_____________
AnsweredRajasri Mundrathi asked 5 years ago • 
1530 views1 answers0 votes
If the speed of D.C. shunt motor is increased, the back EMF of the machine will be____________.
AnsweredRajasri Mundrathi asked 5 years ago • 
2130 views1 answers1 votes
Top 10 electrical machines interview questions?
OpenChetan Shidling asked 5 years ago • 
1142 views0 answers0 votes
Difference between generator and alternator?
OpenChetan Shidling asked 5 years ago • 
987 views0 answers0 votes
What is direct torque control method?
OpenChetan Shidling asked 5 years ago • 
846 views0 answers0 votes
Mathematical modelling of BLDC motor?
OpenChetan Shidling asked 6 years ago • 
1022 views0 answers0 votes
Why ceiling fan winding will burn?
OpenChetan Shidling asked 6 years ago • 
1037 views0 answers0 votes
Why something we need to rotate ceiling fan manually to make it move?
OpenChetan Shidling asked 6 years ago • 
920 views0 answers0 votes
What are the types of AC motor starter?
AnsweredChetan Shidling asked 6 years ago • 
1298 views3 answers0 votes
Difference between star and delta transformer?
OpenChetan Shidling asked 6 years ago • 
872 views0 answers0 votes
The rotor copper losses in a Permanent Magnet machines is?
OpenChetan Shidling asked 6 years ago • 
1120 views0 answers2 votes
What is Hysteresis Loss?
OpenChetan Shidling asked 6 years ago • 
808 views0 answers0 votes
What is Eddy current Loss and where does it occur?
OpenChetan Shidling asked 6 years ago • 
772 views0 answers0 votes
Difference between electrical and mechanical speed?
OpenChetan Shidling asked 6 years ago • 
891 views0 answers0 votes
What are the signals affect the control action in a DTC system
AnsweredChetan Shidling asked 6 years ago • 
765 views1 answers0 votes
What is direct torque control or DTC method?
AnsweredChetan Shidling asked 6 years ago • 
977 views1 answers0 votes
Difference between PMSM and BLDC motor?
AnsweredChetan Shidling asked 6 years ago • 
1620 views1 answers0 votes
What is a exciter in machines?
OpenChetan Shidling asked 6 years ago • 
1050 views0 answers0 votes
What is a PMSM motor?
Openchetan shidling asked 6 years ago • 
1054 views1 answers0 votes
What is a synchronous condenser in machines?
Answeredchetan shidling asked 6 years ago • 
990 views1 answers0 votes
Why high frequency transformer is small in size?
Answeredchetan shidling asked 6 years ago • 
2128 views1 answers0 votes
What is a RPM?
Answeredchetan shidling asked 6 years ago • 
1026 views1 answers0 votes
What is role of armature in motor?
AnsweredChetan Shidling asked 6 years ago • 
1454 views2 answers0 votes
What is four point starter and why it is used?
AnsweredChetan Shidling asked 6 years ago • 
686 views0 answers0 votes
What Is GNA in motor?
AnsweredChetan Shidling asked 6 years ago • 
1020 views1 answers0 votes
What are the different types of DC motor starter?
AnsweredChetan Shidling asked 6 years ago • 
869 views1 answers0 votes
What is the function of starter in motor?
AnsweredChetan Shidling asked 6 years ago • 
1158 views1 answers0 votes
What is the necessity of starter?
AnsweredChetan Shidling asked 6 years ago • 
999 views1 answers0 votes
What are the types of transformer core?
AnsweredChetan Shidling asked 6 years ago • 
1255 views2 answers0 votes
What is MNA in motor?
AnsweredChetan Shidling asked 6 years ago • 
909 views1 answers0 votes
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