Answer / rajesh tokalapudi

The layer of charcoal and salt helps to maintain low
resistance for earth fault currents.Because of ionic
behaviour of salt and charcoal they will maintain moisture
content around the earht pit.

Answer / vijay

its because Salts are ionic compounds composed of cations
(positively charged ions) and anions (negative ions) so
that the product is electrically neutral (without a net
charge), and these are the electro-chemical properties that
make them suitable for buffering of electricity from the
copper rod to earth's soil, they work best when they are
dissolved in water becouse that is when the ions are
produced.The layer of charcoal and salt helps to maintain
low
resistance for earth fault currents.Because of ionic
behaviour of salt and charcoal they will maintain moisture
content around the earht pit.

Answer / a.y.naidu

by usage of charcoal and salt in earthing we can reduce the
resistance and also it will give moisture content for a long
time.so it early discharges the faulty current into earth.

Answer / michael thindiu

its because Salts are ionic compounds composed of cations
(positively charged ions) and anions (negative ions) so
that the product is electrically neutral (without a net
charge), and these are the electro-chemical properties that
make them suitable for buffering of electricity from the
copper rod to earth's soil, they work best when they are
dissolved in water becouse that is when the ions are
produced.

Answer / james

Charcoal is porous - locks in moisture that salt attracts
and dissolves in - ionised solution is kept on large
reaction area that charcoal pores provide. Such locked in
material is prevented from drying up easily.

Answer / nimish

because charcoal is a good conductor of electricity and also
charcoal and salt helps to maintain the low resistance path
for fault current.

Answer / srinivas dharani

charcoal is maitain the low resistance and high
conductivity.
salt is desolved in water the possitive ions abserved by
charcoal and released so the earth resistance maintain
properly.

Answer / pushpendra

Charcoal is used to retain the moisture for long duration because it is an adsorbent and salt is added to increase the conductivity both these products help to pass the leakage current through earth wire as early as possible to remove the chances of shock.

Answer / shashi thakur

charcoal is maitain the low resistance and high
conductivity.
salt is desolved in water the possitive ions abserved by
charcoal and released so the earth resistance maintain
properly.

Answer / preethi arunagiri

Salt is acting as an electrolyte between the GI rod and coal...hence they are used in layer by layer...the aim this arrangement is to minimize the earth resistance.

What is the difference b/w RMU & substation

1 Answers  

In star and delta connected systems , for driving power and as well as light load which one you will preferred?

2 Answers   Aramco, IBM,

In 2500kva transformer how much is the withstand High voltage power frequency between primary to secondary and earth? And secondary to primary and earth?

1 Answers   Honeywell,

What is the Procedure for selecting a Cable, Breaker and Transformer for particular load.

3 Answers  

how to mention 5mw generator in kva ? gen voltage is 11kv

6 Answers  

What is RCBO? hw it works

2 Answers  

230v AC & 230V DC which is more dengerous for getting a clectric shock between this two voltage?

5 Answers  

why making capacity is more than breaking capacity?

14 Answers   Essar, Indo Asian, Infinity,

can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?

0 Answers  

Why used IGBT IN AC Drives

4 Answers  

why the energy meter disc rotates anticlockwise while reading

1 Answers   KSEB,

how many joint can done in HT line and what is life of the joint

0 Answers   Micro Labs, Reliance,