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.

On the secondary side of a distribution transformer, we use 1c x 630 sq mm cable. Why dont we use 4 core cables instead of 1 core cables on the secondary. Why we use aluminium cable glands on the outgoing instead of brass cable glands?

2 Answers   Siemens,

volts=230 c=10mf a=??

0 Answers  

in three 3.5 core aluminium ug cable. one cable is used for one phase by shrting R,Y and B wires and other 2 cables used for Y and b phases. balace 3 neutral wires are made common and connected to load. suddenly neutral current was more than line current what is the reason behind this?

1 Answers   DLF,

Is it possible we are step down 11 kv to 230v ?

2 Answers   Fedco,

What is NUMBER OF RUN for power cable means?

4 Answers  

how calculation to be done of cable size/o.h. conductor size of 11kv h.t.for the load of 2175 kw

1 Answers   Shell,

cleat wiring system is used at

2 Answers  

what is vtg limit of earth and neutral at transformer side?

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can we run all LT motors at 360 volts which are normally rated 415+/-10% voltage rating

2 Answers   Meinhardt,

what is suitable cable for 25 HP motor ? start with VFD ac supply 50 hz

3 Answers   Mac,

Explain dc generator with its types?

0 Answers  

what is reactive power (MVAR) and how it is control? how it is generate in powerplant?

1 Answers