Answer / jayesh pillai

star point connected to ground is known as neutral earthing
it is essential for preventing arcing ground effect during
faulty conditions and maintaining zero potential at neutral
even during unbalanced condition

equipment earthing is related to earthing of non current
carrying metallic parts that may be electrocuted during
earth fault. so it is doned in order to prevent any shock
to any person and even equipment when current flows through
such equipment body during fault

Answer / ramesh kumar

Neutral earthing is return path for current by making earth
as conductor.ie like all Star connedted system are having
return as earth and 3 phases metal conductor.

body earthing is least path for fault curretnt or leagage
current flow by connecting metal body to earth point by cu
conductor.

Answer / dhananjay kumar ....gpl..

The star point of an electrical machine is earth to
make the neutral point and ground potential is called neutral earthing. 
  

Answer / prabhat

neutral earthing is the process of connecting the star point of a 3 phase system to earth whereas equipment earthing is the process of connecting non current carrying part usually the metal frame of an equipment to earth.

Answer / dhananjay kumar from japla (gp

The star point of an electrical machine is earth to make the neutral point and ground 
potential is called neutral earthing. 
This is done so that a number of measurement and protective system
can be suitably connected with the power system.
       The equipment earthing is done to protect operating personal to protect them for electrical shok. 

In some cases equipment earthing also protect the environment from earthing. .......

Answer / m. p.renu.

There is an advantage of body earthing and neutral earthing
interconnected, since any single phase connected load if
interchanged, the fuse or the circuit trips indicating the
phase wire is wrongly connected.In any case the earthing
system works when there is a normalleakage and as we have
interconnected the two earthing system the total earth
resistance becomes low & this is an added advantage.

If not so kindly explain.

Answer / venkat

earhings are 2 types .they are 1)neutral earthing 2)
equipment earthing . neutal earthing is connecting non
metallic part to ground. system earthing is connecting
some part of the system to ground.

How transformer neutralshould earthed ? Transformer neutral connected to earth mat in substations, right or wrong ?

4 Answers  

excitation limit of an excitor

0 Answers  

When calculation of fault current and fault Kva is to be done,why always we use per unit value and why we consider the base kva?

0 Answers  

how can i get elcctrical supervisor license & Certificate of competancy in gujarat? i have completed my B.E (Electrical) course from gujarat.

2 Answers   NTPC, Welspun,

what do u mean by knee point voltage?

7 Answers   TATA,

what happend if we remove dc exciter from moving machine..: gg

4 Answers  

How Can we calculate current carrieng capacity of Copper Bus-Bars and Alluminium Bus-bar

2 Answers  

HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?

0 Answers   Eastern Produce,

which connection is safer series or parallel?usually which connection we prefer at home?

5 Answers  

how to calaculate the amps in transformer ?

2 Answers  

In 11kv transmission line whats the maximum power can be drawn?

1 Answers   Concast, Prestige,

In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?

0 Answers