Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

why we are testing cables with DC supply not with AC supply?

Answer Posted / malik

Power cables testing is 2 types IR and Hipot.
1. megger normally D.C, we required the resistance value of
the insulation. AC megger till not to use.
2. Hi pot test, we apply the AC voltage low Frequency(VLF),
we measure the leakage current value. this kit we cannot
measure for the resistance value if the insulation.
so we use AC supply and DC supply for the different
application.

Is This Answer Correct ?    3 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

WHAT IS IM (INDEX OF MOUNTING )IN MOTORS

2038


1)Explain why the cradle guard is used on railway crossing in overhead line construction?

5062


Difference between transition and diffusion capacitance

2988


if i am in front of transmission line how to know that current direction without any equipment

1778


What is the use of oil in transformers?

1106


how to find the multiplication factor for digital energy meter and analog energy meter

2212


Define filter?

1130


what is the use of Auto re-closer?

2151


I want to merge a cable..in between two metering Cubicals which contains CT's and PT's and Energy meter..before taking merger..what are the common things required?

1663


Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

1162


what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

2109


What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw

1903


What is an Air COmpressor

2250


what happen if generator of micro hydro running at only a small percentage of its capacity, as a comparison, if the diesel generator that runs on only a fraction of its capacity there will be a wet stacking

1950


How does a transformer contribute towards the widespread popularity of ac system over dc?

1111