why there is a humming noise in transformer

Answer Posted / yasir wani

coz of eddy currents flowing in the core , and leakage
currents from leakage inductance to ground

Is This Answer Correct ?    6 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Who many reason of ignition fail ?

1476


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1312


Why does inductive loads consume KVARs?

1562


how the characterstics of control valve being done

1470


hi if anybody got model questions for cpcl Grade'A' electrical engineer position.send it to my mail please krishkumar22@gmail.com

1480






why we use 630mm single core cable for transformer secondary side and why two neutral cable

1407


What is Phase margin?

652


State and define norton’s theorem?

781


Explain how you intend to work under pressure to meet up with deadline target?

1933


What is the importance of counter based plan & how is it scheduled?

1561


What is the purpose of using busbar mounting fuse?

1600


What shall be the secondary output voltage if the primary winding of a 220/6V, 50 Hz transformer is energized by an 110V, 60 Hz supply?

876


How to perform a DC resistance test In Alternator and their proceduces?

1073


how commomn gate triggering is given for TRIAC ? other thyristor wont be efffected?

1917


WHAT IS THE FORMULA FOR CALCULATING CURRENT RATING(DIRECT IN GROUND OR AIR) OF ARMOURED(XLPE) CABLE OF 4C,16Sqmm?

1658