what is starting current and use of starting current?

Answers were Sorted based on User's Feedback



what is starting current and use of starting current?..

Answer / m s kumar

Starting Current is the current taken by an electric
machine at the time of starting. It is typically 5 to 6
times the rated current of the machine. Since torque of an
electric motor is proportional of current (or square of the
current), the starting torque is high or low if the
starting current is high or low respectively.

Is This Answer Correct ?    14 Yes 1 No

what is starting current and use of starting current?..

Answer / pswin

Starting current it the current drawn by the induction motors at the starting period. It is used to choose correct size or ratings of power cable,breaker and starter for that motor.

Is This Answer Correct ?    5 Yes 2 No

what is starting current and use of starting current?..

Answer / kamlesh g patel

starting current of motor is same as inrush current of
transformer.
starting current of motor is about 5-6 times its rated
current & this is due to non availability of back emf
during starting.
motor torque is proportional to the current means high
starting current produces high strting torque which helps
in starting the machine from stndstill condition.

Is This Answer Correct ?    2 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

What are the two types of compensation?

0 Answers  


why the AC or DC motor takes high starting current?

2 Answers  


Name some application zrea where IDMT relay can used?

3 Answers   SKB,


what is ferranti effect?

9 Answers  


what is the relevance of knee point voltage in protection and metering grade CT ? and basically what is knee point voltage ?

2 Answers  






how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

1 Answers   Bhel, Indorama, Power Grid,


how the transmission voltage ranges are decided like 11kV,33kV,66kV,132kV,220kV,400kV,725kV.... why not choose the transmission line voltage as 23kV,164kV,440kV?? what's the reason??

3 Answers  


Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain

0 Answers  


Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..

0 Answers   Siemens,


in traction which type of supply are used

15 Answers   APGenco, Construction,


When testing an earthing connection, we use a 60 or 100 candle bulb with a phase connected direct from supply and the other wire to the new earthing provided.If the bulb glows then the earth is ok.Else earth connection is not Ok. So, why dont we can use all the home appliances taking a single wire from the phase and the return connection to Earth instead of return connection to neutral?

2 Answers  


What are the industrial applications of Superhetrodyne Receivers ? What are merits & De-merits of SuperHeterodyne Receivers ?

1 Answers   Airtel,


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)