an ac induction motor gets overheated when operated at a low
frequency of 25 hz a instead of 50 hz. reason?
Answer Posted / gopal
A motor designed for line frequencies doesn't have the
inductance to limit current at 25 Hz. And the coupling to
the rotor is inefficient. Driven to provide reasonable
torque it will heat badly.
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Why have to use copper cable for local isolator to motor ?
how freewheeling diode improves the powerfactor
sir, iam a electrical engg graduate and i want to go in automation sector and for this i have decided to do industrial training for this,plz suggest me some good institute for the same in delhi,ncr. my degree percentage is 58%, can i get job after doing training, plz help....
What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?
why most of junction box vendors providing T5/T6 Temp class jb's for T3 area any special reason?
CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D
What kind of preventive maintenance are there for transformer?
what are problems caused by the pdu in rack server
Do you know what is dry-out test in x'mer
what is EIB lighting control system? what is the advantages of this system?
What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439
What is cable tray, its type, and its support?
diff. between tension mode & speed mode
What happens if we connect a single phase energy meter in reverse polarity.
Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.