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 transformer is giving some humming noise .....?

Answer Posted / kishore

DUE TO MAGNETOSTRICTION IT HAPPENS COZ WHEN FERROMAGNETIC
MAG TRANF CORE IS MAGNETISED THE CORE LENGTH ALTERNATIVELY
INC N DECR N HENCE TRANSFORMER CORE DIMENS INC N DECR
SLIGHTLY
HIGHER THE CORE FLUX HIGHER IS THE HUMMING NOICE N IT
DEPENDS ON NATURE OF CORE CONSTRUCTION N CLAMPINMG

Is This Answer Correct ?    46 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is excitation in case of dc motor?

1156


critically criticize the application of ring main unit in power system

1445


If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

1998


Why is remote backup preferred to local backup?

2063


Define the term Capacitance and Inductance?

1098


Define noise?

1152


Usage of flywheel diode in relays

1918


why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.

1971


what is a reactive power? what is the relation with power factor?

2173


how to control the speed to switched reluctance motor

1938


Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.

1189


how to calculate voltage drop and followed by cable calculation?is there avail in formula?

2048


how to calculate the tarriff for an industry whose kva demand is 10 mva

1966


What are the main significances of root locus?

1225


What are the advantages and disadvantages of the dc motors?

1129