Answer / sindhejs

You mentioned the current capacity of motor is 390A, If
distance is too closer to the breaker,then you might be go
for copper cable, it will have lesser cross section and
high current carrying capacity. If the distance is more
better to go for the Aluminium cable so that cost of the
cable will reduce from the copper cable.

Answer / abhishek

dude you have not mentioned the rated vol of the motor

Answer / padmakumar

Cable size selection is dippending on several factors like
current,distance,cable routing, nature of load,duration of
running of equipment etc.Normally 400KW LT motors nobody
prefers to run due to high current handling.HT motor is
preferable.In case of LT, you can go ahead with 400sqmm two
runs of Alumonium cable with stardelta starter.

Answer / ramjilal

first your question is wrong 400 KW motor current more than
390 amps. second you not mention type of starter.

Answer / bhupat chaudhari - adani

you should be going with 400 sq al xlpe cable for long
distance and with star-delta..

Difference between induction motor and synchronous motor? i Think Synchronous motors operate at synchronous speed (RPM=120f/p) while induction motors operate at less than synchronous speed (RPM=120f/p – slip). Slip is nearly zero at zero load torque and increases as load torque increases am a right pls guide & send Other Comments

5 Answers   Jindal,

how to read AWG n how to convert AWG reading into mm?

1 Answers  

What is the difference between security constraint unit commitment and security constraint optimal power flow?

0 Answers   College School Exams Tests,

How electrical power(MW)is varied OF an A.C Generator in response to varying steam input to a steam turbine ?

1 Answers   Hindalco,

what happen if i change the polarity of ac when it is connected with motor

3 Answers  

difine electrical ballast in HPSVL

0 Answers  

I am working as maintenance engg. in electrical but i want to do carrier in electrical drawing.Tell me about that.

2 Answers  

what is the difference between earth leakage and earth fault?

0 Answers   L&T,

What is the fault or needs to be done when frequency in ac drives is not changing?

0 Answers  

orifice sizing how done, checking & selection

0 Answers  

how fluoresent lamp works??

2 Answers  

what methods are used to improve power factor?

3 Answers