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Question
Why charcoal and salt add in earthing pit.
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
the charcoal and salt are added in the earthing pit to simply increase the conductivity or in otherwords to reduce the resistance of the earth..this will give reliable earthing... 
Is This Answer Correct ?    34 Yes 0 No
Avinash Kumar
 
Answer
# 2
to reduce the resistivity of the earth 
Is This Answer Correct ?    7 Yes 2 No
Kirubakaran
 
 
 
Answer
# 3
we that charcoal powder is a carbon content substance it act
as a semiconductor and salt is soluble in water , earth bit
after finishing time we put water required, now salt is
connected the earth electrode and char coal powder and
ground so we use them
 
Is This Answer Correct ?    6 Yes 3 No
Vanthni@yahoo.com
 
Answer
# 4
charcoal makes to carry the moisture content and salt to produce the HYDRONIUM ions so both are added alternate way in the earth pits
SDDIET barwala
 
Is This Answer Correct ?    1 Yes 1 No
Ashok Mishra
 
Answer
# 5
Hai
go and Ask your GM and DGM , THEY NO VERY WELL
 
Is This Answer Correct ?    8 Yes 19 No
Bala.a
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
why are we adopting 132kv,220kv for transmission rather than using 440kv at all transmission lines as it gives lower losses? APGenco 2
2.5mva transformer is installed in our company with oltc but it is not working in auto mode ,it is operative in manual mode control wiring is done how can i rectify it?   4
battery spicgravity mesuserd?   1
What is corona? and what is the purpose of corona belt in substation ? why they connect these end of the buses ?   2
60 watts bulb and resistor home heater is connected in series and 230v is given to the circuit. The heater is giving some amount of heat. If instant of 60 watts bulb replace 100 watts bulb what will be the output of the heater? NPCIL 2
if acapacitor connected to power supply will it cosume power& will it going to get recorded in energy meter   2
what is diffrence between neutral and earth wire Bhel 22
what is the difference between the alternator used in hydro and thermal power plants??   2
why is efficiency of transformer more than that of other rotating machines?   1
Is it reuired to use house service barcket for 31/2 core 300 Sq.mm cable,if the distance between pole & shop is around 2 mtrs only or can I hang the cable with GI support in air? upto what size of cable GI serrvice btacket is necessary? HAL 1
why Power transmssion voltages are as 11kV,33kV,66kV,220kV and so on only?   2
what is the basic difference between fan and home motor if both have single phase induction motor? Engineers-India-Limited 4
 
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