Can motor act as generator (OR) vice versa? explain how
does it do please post the answer technically
- 11 Answers
- 40206 Views
- GM General Motors, I also Faced
- E-Mail Answers
Answer Posted / mudasir nazir magray
Moter is a device/machine which converts electrical energy into mechnical energy and the generator do the reverse of moter. synchronous motor is ac moter having rotor speed less than synchronous speed (Ns=120f/p). If the speed of the rotor exceeds the synchronous speed or the speed of the rotating emf of stator(Ns=120f/p) then the moter will act as a generator because in this condition the torque acts in opposite direction of rotation (as in generator).
| Is This Answer Correct ? | 8 Yes | 1 No |
Post New Answer View All Answers
Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?
what happens to the supply voltage if there is any change in frequency?
In ACS 1000 drive we are using 12 pulse converter,why don't use 3 pulse converter.
Can RCD's used to protect the VVVF drive if not why.
i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?
Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?
what is the breaking capacity and making capacity of circuit breaker and how
Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.
What is gain margin?
How the setting of the vector surge relay shall be calculated when the relay is to be used for Grid islanding application?
How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).
I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id:upendrakrishna20@gmail.com,plz send me ,or send any other rrb papers plzzzzzzzzzzzzzzzzzz
Define availability (operational)?
why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?
what is deffrence between squirral cage and wound rotor in IM?
