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Question
can we check the resistance of earthing electrode while it 
is connected with the neutral of UPS system
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
No!! You will have to disconnect the connection which is
usually bolted to the earth electrode.

Then with earth megger you will have to test the earth
electrode independently.
 
Is This Answer Correct ?    1 Yes 0 No
William Lobo
 
Answer
# 2
It should be checked accordingly the resistance used for
the solid system earthing.
In low voltage system erathing, the secondry winding of
distribution transformer, low voltage generator or UPS
system are normally solidly earthed. Solidly earthing of
the system means that the system voltage will never exceed
the phase voltage.
 
Is This Answer Correct ?    1 Yes 1 No
Zan
 
 
 
Answer
# 3
now days simple measuring instrument are availsble eg:-
meco i have seen catloge by which without connecting to
Eatrh Electrode we can measure leackage current as well as
resistance of Earth point/Electrod.
 
Is This Answer Correct ?    1 Yes 1 No
Anil
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
How can you limit the fault level in a power system? Alfanar 1
Why earthing transformer used in Distribution Sub-Station?   2
In a 11KV 3phase system do you need to earth both sides of the cable?   2
why in a transformer frequency remains constant? if frequency is changing what will happen?   4
kindly arrange to send me RRB Bangalore previous question paper for JE/Electrical and JE/Signal I am going to write exam on 2010   2
Negative feedback circuit is an implication of ? -Shunt shunt -Shunt series -series series   1
why transformer ratings are taken in 11kv 22kv 33kv but not in 10,20,30kv ushacomm 5
What is the difference b/w Earthing and Grounding?   4
can v rotate single phase induction motor in both the direction...?   1
what is the std. earthing resistance for 440V system or m/c, 33000/440 Volt substation? What is the std.?   1
What happens if the secondary of the transformer is shorted?   2
we use 3 phase supply for induction motor why not use two phase supply .   4
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
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