Answer / teja

In most of the 3-ph systems neutral is provided just take care of the unbalanced current. Unbalanced current is nothing but when any of the phase is slightly overloaded or in case of phase failure in balanced currents will produced to carry these currents safely to earth without disturbing the other phases and other connected equipment to the distribution board neutral is generally provided.

and all the neutrals of the db's (Distribution boards) are interconnected and at the transformer this nuetral will solidly grounded.

Answer / lokesh thota

need of neutral does no exist in case of 3-phase inductive
load while connected to motors, but in case of distribution
transformers or any distribution load for single phase
connection purpose we need a neural.

Answer / sanjana singh

need of neutral in 3 phase system for following...
1. for providing return path to current.
2. protect system from unbalancing condition by grounding the unbalance current.

Answer / prabhakar

During any disturbances,i;e during short circuit condition neutral is used to ground the surge flowing through the lines.

Answer / ramya

ACTUALLY WHAT IS THE NEED IS THE QUESTION UDAYA...

why generator one end side star neutral point given? if this point not given what happen?

1 Answers  

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what is the knee point voltage in current transformer

2 Answers  

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i have one ground earth for my shop but now he showing 11v how ever my machine engineer said that he require less than 3v how can we reduce it, i have put 8 bucket salty water in it

1 Answers  

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suri transmission

0 Answers   Bhel,

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what are the effects on an power plant and consumers if the power factor is increased or decreased?

2 Answers  

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As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?

2 Answers  

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ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?

0 Answers  

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What is cogging and crawling phenomenon in motor.

2 Answers   DAE,

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pls tell what are doing the three phase motor star and delta connetion with circuit diagram and control wiring .

0 Answers   Mukand,

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Can u explain : how capacitor act when the supply is given is a.c and d.c. I know that when d.c supply is given then the capacitor charges and becomes open circuited. But please say about when a.c is given. I have seen that when a.c supply is given ,it charges and discharges, But when we plug in capacitor to our daily supply and take it out ,then we join those wires spark will appear,which seems charge is present ,but when a.c is given it should charge and discharge

3 Answers  

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bitumar

0 Answers   Bhel,

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How to measure power in 2 or 4 or n phase circuit? Please give me a formula.

0 Answers  

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