Why we use neutral cable just half from phase cable.Tell me
briefly,please.

Answer Posted / ikab

In three phase, current in neutral in one third
of phases so conductor size is less. but in single phase neutral conductor size should be same as phase conductor size.

Is This Answer Correct ?    20 Yes 10 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is shunt voltage and u v voltage witch one best

1291


Why synchronous motor is used in power factor improvement,dc series in lift

1183


How many sprinklers should be in one pipe line?

1421


how i can calculate the size for fire cable

1492


Define the overload capacity of the motor?

1578






I am interested to know what does 15 KVA DG set actually means? If I dont know the DG rating, is it possible to identify KW by simply knowing the diesel consumption?

1609


In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

1647


When are the directional relays used?

606


FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?

2942


Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?

1670


my question is how to answer the question "you are from b.tech eee background and why do you want to go for banking

881


I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

2523


What will be the effect of circulating current in HT xlpe cable when both the armour ends are grounded. Will the termination fils after some time in case of 33 kv supply.

1619


What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?

1898


Why we used 690V in ACS 800 drives.Why dont use standard voltage like 415v or 1.1Kv

1922