Answer Posted / navneet phogat
Three phase induction motors are used wherever the application depends on AC power from the national grid. Because they don't need commutators they are particularly suitable for high power applications.
They are available with power handling capacities ranging from a few Watts to more than 10 MegaWatts.
They are mainly used for heavy industrial applications and for machine tools.
The availability of solid state inverters in recent years means that induction motors can now be run from a DC source. They are now finding use in automotive applications for electric and hybrid electric vehicles. Induction motors are seen as more rugged for these applications than permanent magnet motors which are vulnerable to possible degradation or demagnetization of the magnets due to over-temperature or accidental over-current at power levels over about 5 kW. Nevertheless, the induction motor can be ill-suited for some automotive applications because of the difficulties associated with extracting heat from the rotor, efficiency problems over wide speed and power ranges, and a more expensive manufacturing process due to distributed windings. Permanent magnet and reluctance motors may offer better solutions for these applications.
Is This Answer Correct ? | 19 Yes | 2 No |
Post New Answer View All Answers
What do you mean by screen of power cables?
placement paper samples of mspl company
how to calculate fuse rating for a motor
how to calculation increase capacitor,increase power factor for three phase.
What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?
Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plant instrumentation field , which one field is give long life & which one field is best ,I confused a lot and also I'm studying AMIE, can I choose which department from Section B examination? pls tell me
what is the circulate the diesel in DG in side pls tell parts name and picture with circulate the diesel
is it possible to start a motor in felid connected to a remote mcc
why servomotor motor? where i apply for best output?
How could I get a certificate of competency as Electrical Supervisor? I have completed By BTech in Electrical this year(2012) for VJTI Mumbai Maharashtra. Is it compulsory to be produced while joining?
WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.
why only exciting current is shown not primary current in transformer???
What is the use of bundle conductors?
compare between starting charactristics of synchronous motor with those of 3Q Squirrel cage induction motor
Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?