How to do the meggering for a cable.
Answers were Sorted based on User's Feedback
Answer / virendra joshi
Open the cable from both the end connect the Armour to
earth do the magger of RY, YB, BR respectively Then again
all three phases with respectively, the infinite is
preferable But if is near to zero then it is a matter of
worry.
Is This Answer Correct ? | 13 Yes | 0 No |
Answer / johnmathews
Between cable(r,y,b,n)and earth(Armour of the cable).
Between cables(R to y and b)Same to other cables
Is This Answer Correct ? | 12 Yes | 4 No |
Answer / raihan
In additional to this we can do for RN,YN,BN and NE, if
insulation resistance is 1000Mohms or infinity it is ok
Is This Answer Correct ? | 6 Yes | 0 No |
Answer / gunasekaran
Armour of the cable should be connected to earth if u want
take megger for R phase another 2phase are short and earthed
like wise. in this type of testing we can get exact leakage
current of the cable.b/w two phase R Y, R B,YB,YR and BR,BY
Is This Answer Correct ? | 3 Yes | 6 No |
how calculate the electrical load for industry and office
What do you mean by pull of electromagnet?
difference between moore and mealy model
WHY BREAKER ARE USED IN SUBSTATIONS?
in cable joints procedure what electrical problems have been solved out ?
WHY IS wet surface used for grounding???
What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?
why told ' x ' mer to transformer
What is a DC series motor?
what are transmission line parameters and transmission line constants?
why Square root 3 used for three phase?
How Can you do Maintenance of ACB of 2000Amperes