:: Home Page
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   Errors
   Testimonials Refer this Site  Refer This Site to Your Friends  Site Map  Contact Us      
Categories >> Engineering >> Electrical Engineering



Question Why a starter is used for a motor?
 Question Asked In Companies :: L&T, Nilachal Polytechnic,     < I also faced this Question! >
 Question Submitted By :: ravi
  Answer Posted By  
starter used to reduce the starting current of the motor.
and to safe the motor winding in the high starting
current.different type of starter used to the motor. i.e, 3
point starter,4 point starter used to d.c and a.c motors.

Is This Answer Correct ?    203 Yes 28 No

View All Answers
Please Help Members By Posting Answers For Below Questions
 Question Views   Select
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value 246
how can i change the rotation of the AC single phase induction motor and show me by diagram 181
we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation. 417
Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics 656
What is the BS(British Standard)code for 11kv motor 1884
We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's 312
If increased the frequency up to 1000 then what changes shows in voltage? 321
If i=10+10sin314t then find the rms and average value of current with explain? 1414
sir, what is the importance of Fault MVA. how to calculate fault mva of 33kv substation connected by 6.5 km line(single circuit with equal spacing) with 110/11kv transformer in 110kv susbstation.the fault mva on 11 kv bus in 110kv susbstation is 208mva. 1315
Which motor is 3.3 or 11kV more reliable, in terms of efficeancy,maintenance, reliability. 408
Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault 444
how to find ratio of CT & PT in 66/11kv 12 mva supply system ? explain with calculation. 535
calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A. 1786
diff.between servo motor and ac motor 476
E-Mail New Answers        Answer Selected Questions