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

what is diffrent between plc and clc??

1 Answers  

---

In a ordinary plug can we hold the earth in hane and connect the circuit to supply?will we get a shock?

5 Answers  

---

What will happen if an AC induction motor is applied with DC voltage?????????Kindly give all the posssible answers...

2 Answers  

---

Hi, My plant daily consumption is calculated as 3.8MWH but my supplier has sanctioned an power of 2.6MW per day. how can i equal or distinguish this two factors

0 Answers  

---

why our power production in multiples of 11.

2 Answers   ABB, Infosys,

---

---

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

0 Answers  

---

What is meant by pitch of a synchronous machine.??

1 Answers   Kirloskar,

---

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

0 Answers  

---

What is meant by a stray loss of a induction motor??? What is the equation to find it

0 Answers  

---

why is the size of earth conductor is half of phase conductor.

1 Answers   Century Pulp and Paper, L&T,

---

what is EP panel and AHS panel

2 Answers  

---

As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

1 Answers   NEPC,

---