what will happen if u run induction motor beyond its rated speed
- 13 Answers
- 17829 Views
- Adani, BARC, Bescom, I also Faced
- E-Mail Answers
Answer Posted / sumityadav
Induction motor acts as generator when its speed increases than the speed of its stator rotating magnetic field. If a prime mover is connected to the shaft and the stator is connected to ac supply, when it is rotated at a speed greater than the speed of rotating magnetic field, slip becomes negative(-1 < S < 0), torque becomes negative along with the rotor current and power. Therefore motor starts supplying current or power to the supply lines where it is connected.
Credit:https://www.electrical-exam.com/3-phase-induction-motor-mcq/
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what's the difference between 'shaft power demand' and 'BHP' , when we consider electrical load list.
At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?
what is Different between Bilinear and Unilenier?
High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?
what are carbondioxide and dcp used in fire extinguishers
If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?
sir i had plane to do some project with the base of hopkinson test in AC supply its possible
how much value of resistance should connect to 15 kw, 6 pole 3 phase slip ring induction motor having RV-240, RA-42.
What is the difference between diode and a transistor in terms of the direction of current flow?
Draw torque - speed curve and load curve of induction motor? mark operating point ?
in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)
What are the advantages and disadvantages of open loop control system?
What is the lower limit of break-down voltage of converter transformer.
how much leakage current is allowed in MC61A L&T make relay?
What is Instantaneous Earth fault relay,how will work
