Answer / jayesh patel

Body earthing is used for body leakage current to earth &
not humen body harmful. Neutral earthing is used for
unbalance current pass through neutral & its goes to earth
& not effect on other phases voltages/load.

Answer / guest

The two types of earthing are Familiar as Equipment
earthing and Sysytem earthing.
In Equipment earthing: body ( non conducting part)of the
eqipment shold be earthed to safegaurd the human beings.

system Earthing : In this neutral of the supply source (
Transformer or Generator) should be grounded. With this,in
case of unbalanced loading neutral will not be shifted.so
that unbalanced voltages will not arise. We can protect the
equipment also. With size of the equipment( transformer or
alternator)and selection of relying system earthing will be
further classified into directly earthed,Impedance
earthing, resistive (NGRs) earthing

Both are equally importantand compulsory. As per your
requirement Earth pit value will be below 10 Ohms.

Answer / sarav

Ans 3 is mostly correct. But the value of the earthing is
below 2 Ohms.

Answer / riyadh

Star connection T/f's mid point of b/w two phase should be
neutral point . tat point is to be earthed ,
Body earth goes to ground the leakges in the T/f's to
protect human beings frm harmful

Answer / sidhu

value shud be below 1 ohm

Answer / kunwar singh

Body Earthing : To ground any leakage current flowing in the e body of transformer & to protect human Body.

Neutral Earthing: To ground the unbalanced current in neutral.

The earth resistance should be below than 2 ohms.

Answer / nitin naik

1)Body Earting:- It is a part of earthing process were we
are connecting the metallic part of the equipment to the
general mass of the earth (earth is a zero potential) to
ensure any leakage current due to failure of the insulation
of the active conductor. If it is not ensured & suppose
there is leakage current it may cause electrical shock to
the person touching the metallic part of the equipment.
2) Neutral Earting:- It is being ensured & essential where
we are installing distribution transformer (Delta to star)
& Three phase neutral DG set, Neutral earting is the
process of earthing the star point of the secondary winding
of transformer & star point of the alternator winding to
the general mass of the earth. It is essential to eliminate
the return current in neutral due to unbalanced voltage &
further to eliminate unbalance potential between the
circuits.
Note:- In both the case earth setups resistance should
below 2 Ohms.

Answer / pramod sharna

Basically earthing neutral earthing its protects fluctuation
of current and overloading and safety of equipment.

Body earthing is used to leakage of current.

How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?

0 Answers  

what is the lemen of a single 5mm 13000mcd white led pls reply

1 Answers   Eskom, Sona,

can u tell me the promotion from oiller to enginer

0 Answers  

For 7.5HP motor 2880rpm 415VAC Connected with Pressurisation Fan we used Star Delta Startor why not we use DOL startor

2 Answers   DLF,

why hv current transformers have big size ?

5 Answers   RailTel, TCS,

what is the dedicated neutral earth in ups? y its required?

4 Answers  

What are the tests to be done on circuit breaker?

1 Answers  

tell me exact relation b/n voltage and current and which one is depend other

7 Answers   HAL,

Why the generator rating in kva

32 Answers   CompuCom, DLF, Genpact, HNG, SIPM,

can we use metering current transformer as protection current transformer if not why? & if yes why?

5 Answers   Wartsila,

what's producer of XLPE cable laying in undergroung

0 Answers  

This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

0 Answers