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...

what are the protections used in power transformers of 5
mva and above

Answer Posted / ruddho

Percentage differential protection and high speed high set
overcurrent relay are used for 5MVA and above power
transformer.
Reference book:Switchgear protection and power system.

Is This Answer Correct ?    4 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the difference between single point and double point bonding. please kindly detail about bonding of cables.

2453


What is the simplest formula to calculate the rotor diameter of a synchronous generator?

2453


Why it is possible to use PWM with a STATCOM and not with a conventional TCR based SVC

2121


While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?

3550


i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value

1952


please give me all the Alarm .Trip ,Safety Relays & Conditions of Chiller mail me on ashokbabunhce@gmail.com

1835


What are the main parts of central chiller plant? Explain the function of each stage.

4815


What is Servo Ventilated Motor?

2047


We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?

5156


when will be the iocl interview results i faced interview on 8th september 2008 iam from electrical branch i faced interview for the post of electrical engineer??????????????????????//

2056


RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV

2106


please tell me when we start motor without load in star or delta connection whose current above condition,pl write formula

2299


WHAT ARE THE CHARACTERISTICS OF AN VOLTAG AMPLIFIER

2034


what is the most permissible winding temp when we conducting a generator load test?(condition no load)

1728


what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq

2109