What does negative slip of an induction motor signify?
- 10 Answers
- 43633 Views
- Tata Elxsi, I also Faced
- E-Mail Answers
Answer Posted / satya
For an induction motor we have
s= (Ns-Nr)/Ns
so slip can be negative in the region where the value of
rotor speed exceeds that of the synchronous speed. usually
while working as an induction motor the speed of the rotor
cant touch the synchronous speed. because as it does so
there will be no cutting of the flux lines by the rotor
conductors. so there will be no emf induced so no current ,
so no force and no torque.
but when the induction motor is run by an external
primemover over the synchronous speed now rotor speed
increases that of the Ns. so rotor emf E2> stator applied emf.
the induction motor now functions as an induction generator.
| Is This Answer Correct ? | 65 Yes | 2 No |
Post New Answer View All Answers
Which material is used for the core of a transformer and why?
Is it possible to measure the voltage of a battery from a single terminal?
WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO
why we r not earthed Control cable of C.T. terminals
Pleae send me last 5 years of Question book about RRB chennai.
What happened when voltage will half value of current ...
What is the magnetic field (coil DC ) of Turbo Expander?
What happen to the transformer if the OLTC frequently used for lower and raise occured 50times daily?
what is the practical application of full adder circuit?
How test for Ddo vector group test condition?
what is the Connected Load (kW) or Contract Demand (kVA)of mahindra nasik plant??
What is the range of the stator resistance of 3 phase induction motor?
Explain cos(theta) and Sin(theta)
what is the range of maximum DOL and SDS can be use for pump and fan application
Pl. give me checklist for installation & commissioning of machine tool.
