Synchrounous motor is three phase motor,but its not self
starting .why?

Answers were Sorted based on User's Feedback



Synchrounous motor is three phase motor,but its not self starting .why?..

Answer / guru101

Synchronous motor Three phase motor but it two winding
which are connected to rotor after 70% it'll be connected.
In the intial time Synchronour motor are not three Phase
but after about 70% speed it'll make Three phase. In the
starting Condiction, it is working as 2phase. it has zero
slip under usual operating conditions. Contrast this with
an induction motor, which must slip in order to produce
torque

Is This Answer Correct ?    9 Yes 26 No

Synchrounous motor is three phase motor,but its not self starting .why?..

Answer / vamsi

it does not having revolving field
because it works on 2 powersuplys ac & dc

Is This Answer Correct ?    12 Yes 36 No

Post New Answer

More Electrical Engineering Interview Questions

what is (+) and (-) in generator field detector stand for?

0 Answers  


What is Instantaneous Earth fault relay,how will work

0 Answers  


To measure insulation resistance of 11KV cable between core & armour, what should be the test voltage & duration?

4 Answers  


I have suguna 3 hp pump for my agreeculture work.It deliver the water from 45 feet well .I suffered by powercut.During powercut i got 2phase supply only .My question is can i run the pump in 2 phase supply using capacitor?.Can u explain me how to connect the capacitors?

2 Answers  


what is meant by neutral compensation factor and where it is used

0 Answers  






If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021

0 Answers  


what is motor

6 Answers   HBL Power Systems,


IN THE CASE OF AN ELCB, IF THERE IS ANY UNSTABILITY BETWEEN PHASE AND NEUTRAL IT MAY TRIP. BUT MY QUESTION IS WHEN A LOAD IS CONNECTED IN BETWEEN P AND N, THE LOAD CONSUMES SOME POWER AND THERE IS A DIFFERENCE IN NEUTRAL WITH RESPECT TO THE PHASE. THUS ACCORDING TO ME, THE ELCB WILL AUTOMATICALLY OPERATES WHEN EVER THE LOAD CONSUMES-- I KNOW IT IS WRONG. BUT THE SOLUTION IS?????????

1 Answers   KSEB,


what is frequency? and its importance

3 Answers  


how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?

0 Answers   Bhel, Jai Balaji, Rashmi Group,


Is it true that IPT are more accurate than CVT for Measuring purpose?

2 Answers  


If an induction motor is restarted before its rotor stop rotating, then what will be the amount of current drawn? Is this current will be the same as motor starting current?

5 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)