What is the speed of 3 phase IM(Induction motor) at no load?
How will the Motor meet the increased load(Explain through
fundamental)?
Answers were Sorted based on User's Feedback
Answer / iamdon
At no load the speed of IM is VERY CLOSE TO SYNCHRONOUS
SPEED but not equal to synchronous speed.
As the mechanical load on the motor shaft is increased,the
motor slow down.Due to which the relative motion between
rotating magnetic field and rotor conductor increases.Thus
more emf will induce in rotor conductor according to
Faraday's laws.Since rotor conductors are short circuited
so more current is induced according to Lenz law.The
induced current will flow through rotor conductor causing
more electromechanical torque to be developed.In this way
motor meets the increased load demand.
Author:arbelectbit@yahoo.com
Is This Answer Correct ? | 5 Yes | 0 No |
Answer / himansu prusti
according to this above question,when we are connecting a load across motor ,at the time motor will draw more amount of current which will dominant resistance present in the rotor,and hence the power factor will improved which will simultaneously improve the torque.because as we know torque in the induction motor is T=Er*Ir*cosφ.
Is This Answer Correct ? | 0 Yes | 0 No |
what are the safety measures of induction motor?
How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?
In DC current-excitation to transformer, why it sucks more current? Eventhough there is no power transfer between primary and secondary? R is very low so it should suck less current only na thn y its current increases?
What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP
why insulators are colured in brown only?
substation+ plc system
What are the diferences between ELCB and RCCB
WHAT IS DIFFERENCE BETWEEN PHASE CONVERTER AND VFD
WITCH CARDS IN USE IN FIRE CONTROL PANEL.
what is motor capacity of 80TR chiller? and also say what is the formula related temperature, motor capacity, TR?
0 Answers Apotex, Periyar Chemicals,
THE 40 MW OF POWER FOR 220 V III PHASE POWER CONNECTION REQUIRES HOW MANY KVA POWEER REQUIREMENTS
7 Answers Chartered Accountant,
How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.