Rotor is taken away from three phase induction motor and
three phase supply is given to the stator.What will happen?

Answer Posted / vinod kumar t

an induction motor can be considered as a transformer whose
secondary is short circuited. if the rotor is taken out, it
wle be agts as a transformer whose secondary is open. hence
the motor wil draw only magnetising current which is of
very less in magnitude .

Is This Answer Correct ?    15 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Is it advantages of having star-delta vfd than normal star vfd , if yes why?

1776


A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE

2075


What is relation between mu(nought) and epsilon(nought)?

884


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?.

1300


I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.

1656






5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch

3365


How PADO software increase the efficiency of power plant?

5995


how the testing of protection CT Testing done through Primary injection kit please describe in detail procedure...

1805


Why electrical power generation and transmission done in 3 phase system not more than 3 phase ?

2573


why we use condenser in the thermal power plant, althrough the same vapour will be again heated

3964


i want wipro vlsi placement pattern please send me

1313


Why Water motor is not taking a load or pressure while everything is correct. (Note: Motor running properly)

967


diff b/w normal grounding and resistance grounding

1417


What is meaning of out of phase (making & breaking) capacity And how to calculate

1627


How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

1783