Answer / koti

Due to magnetostriction(vibration or movement of laminations by alternating wave)

Answer / vinoth a.r

when transformer get magnetized,the magnetized core get
expanding and contraction.in one power cycle two times get
expand and two time get contraction.only little dimension.
this effect called electrostriction.

Answer / sanjayjssate

it is due to magnetisation and demagnetisation of core according to friquency and voltage.

Answer / sandeep singh vyas

when magnetic flux cuts due to this reason transformer creates a sound

As per BIS, Earth pit resistence value?

4 Answers  

---

why bucholtz relay placed inclined in transformer?

1 Answers  

---

Why we use Delta connection in the secondary side of a High Voltage transformer?

1 Answers  

---

Explain what is Zener diode?

1 Answers  

---

sir i want previous entrance exam papers for written test

0 Answers   Vizag Steel,

---

what are the changes made in induction motor so that it act as induction generator

4 Answers   APPSC,

---

from which formula we select a capacitor rating?

0 Answers   CLG,

---

HOW DOES THE PERCENTAGE DIFFERENTIAL PROTECTION WORK IN POWER TRANSFORMER

1 Answers  

---

What are motor generator sets and explain the different ways the motor generator set can be used ?

0 Answers  

---

MICOM P122 OC/EF RELAY HAVE HARMONIC RESTRAIN OR NOT?

1 Answers  

---

What kind of preventive maintenance are there for AC induction motor?

1 Answers   Gulf,

---

HI, I want to buy a new Xformer to my plant. what are the main parameter should I check ( Xformer rating is 16 MVA)

2 Answers  

---