Answer / bosky babu

In 3 Phase transformer,If the core is in circular shape, a rotating magnetic field will builds up and it will tends to rotate the secondary winding, (same as in the induction motor)

So the core is in the shape of square or in rectangle.

Answer / himansu

if circular core is used then more lamination is needed...thus
cost factor is obtained....

why transmission line towers are longer than communication line towers?

3 Answers  

---

What is over fluxing in transformer?

1 Answers  

---

HOW to speed control of induction mototr using scalar control

3 Answers  

---

calotropis is an example of the following phyllotaxy

1 Answers   APGenco,

---

WHAT IS MEANT BY SYNCHRONISING IN GENSETS

5 Answers  

---

If AVR fails in DG set what will be the affect?

17 Answers   GoodYear, Hotline Glass, HSL,

---

X is a uniformly distributed random variable that takes values betweeen 0 and 1.The value of E {X3}(x cube) will be.

1 Answers   GATE,

---

Tell me harmfull effects of over voltage,under voltage,spike,surge,transient & noise.

1 Answers  

---

Define the "All - Day Efficiency" of a Transformer

1 Answers   Transco,

---

how to arrange the generator protection ansi 48 (loss of phase?)

3 Answers  

---

Fot testing new star-delta 132 kw motor in electrical worshop.we should check in star or delta connection as we do not have higher capacity cable in worshop?

4 Answers   Adani,

---

the input mechanical power of a single alternator is increased,its RPM increased but in case of an alternator synchronised with grid its RPM does not increased with increase of input mechanical power. why?

3 Answers   Bhel,

---