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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 20 No
Bala.a
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
which motor is used in our Indian Ceiling fan -Capacitor start and run or Capacitor start? (during repair i saw only one capacitor so it should be start only) Power-Grid 3
Brief function of stepper motor   1
I WANT TO KNOW LONGFORM OF CT/PT USEDIN POWER PROJECTS OR HT SWITCH YARD.   7
What is pole slipping relay? When it is operated? Aditya-Birla 2
what is the Transformer Protection & Type ?? Ge 3
why transformer are not used in D.C SUPPLY   5
why three phase system is not preferred in aircrafts power cckts if yes than explain reasons?   3
1. What does mean of "PS" stand for Diff. CT class? 2. What is the formula of KW for 1Phase load inturms of voltag,current & P.F.? Hero-Honda 4
what is extra low voltage system   2
How much allowable difference current between on three phases Dear sir, We have a 1870 KW HT motor, 11 Kv supply,FLA-120A,2870 rpm,2-pole squirrel cage induction Motor.And stator is connected in star connection with Liquid resistance stater to limit the starting current.It has coupled with Centrifugal air compressor.My question is it is loading 73% of FLA taking R-phase 86.7 A, Y-phase-85.4A,B-phase- 78.3A.why the B phase current is that much of difference.Is it allowable, or any one tell me how much allowable current.If any method to calculate.   1
Is there any difference between circuit breakers and isolators   6
why the amount of voltage generated at power generating stations is 11 KV only....?   1
 
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