Answer / princealekota

3ph squirrel cage induction motors can also be used as
generators. The motor will act as generator when its rotor
speed is more than the synchronous speed which increases
the residual magnetism.
i.e. the rotor must be spun just faster than its rated
speed.

Answer / palani murugan

3 phase induction motor can be converted to Generator by
increasing the rotor speed above the synch. speed or the
slip is greater than one, name as Induction Generator it's
application is used in the wind power.

Answer / jain c

when the speed of the induction motor exceeds the
synchronous speed the motor will act as induction generator.

Answer / viral sharama

Yes , induction motor can be used as a induction generator.An overexcited induction motor with its rotor running at a speed greater than synchronous speed at negative slip starts generating electricity(a.c).At negetive slip the load resistance R(mech)=(R2/s)*1-s instead of absorbimg power act as a source of power.

This type of generator is not self-staring,the stator requires continous 3-phase supply which is why a 3-phase delta connected capacitor bank is always placed across it inorder to prvide residual mag. flux....

They are used in wind energy production, domestic geerators etc

Answer / raul

an induction motor can run as a generator when operating at
negative slip........i,e, rotor speed is more than the
synch speed.......

Answer / kapil

induction motor can be used as a induction generator,when
its speed is increased above the sync. speed.becoz slip
bcomes negative and rotor rotates in opposite direction.

What is the cause for a blown fuse in one phase of primery side(HV) of a three phase transformer( 4169v-460v) in the time of closing its supply breaker. There is no load on the secondery side of the transformer in this moment.

3 Answers   Novachem,

What is trip and closing coil in cb? Why need of them

0 Answers  

Double Busbar Scheme for outdoor switch yard system (132kv) step up power plant Hi friends 1. in this system both busbars energized all the time. 2. what is the meaning of main BB and transfer BB, 3. step up transformer connect main bus bar all the time or both BB connected through DS switch . 4.bus sectionalization means ? thank you.

1 Answers   ABC, Gael,

State the points to be considered for selecting a particular type wiring.

0 Answers  

what is CT class? depending upon which it is classified?

3 Answers   Siemens,

why the transformer was not rotating like a motor?

5 Answers   TATA,

What are the differents between Breaker & Contactor?

8 Answers  

What is the difference between Dielectric and Insulator

9 Answers  

can we use 220 volt 15 w a.c. lamp on 220 volt d.c.

11 Answers   Philips,

what purose of the double circuit transmission line phase of the line phase changed for circuit-1 for Circuit-2 R-Y-B B-Y-R

0 Answers   NCC,

power factor is max for which welding a.arc b.resistance c.gas

2 Answers   Bhel, HCL,

hai now i am working as a electrical design engineer in construction field can i get a job in oil and gass field or power plant project as a electrical design engineer?

0 Answers