Answer / g .senthilkumaran

It is always better to give DC supply to the field then
only we can get continuous output i.e sine wave from the
stator of an alternator.

Answer / hansraj

the dynamical induced emf needs a constant flux i.e time
invarient flux
if we give the ac input it produces alternating flux in the
rotar field and dc current not producec e.m.f. is induced
so the
electrical power will be zero

Answer / veeru

the dynamical induced emf needs a constant flux i.e time
invarient flux
if we give the ac input it produces alternating flux in the
rotar field and then there is no emf is induced so the
electrical power will be zero

why the current is denoted by the letter 'i'

1 Answers  

---

How to resolve if Diesel generator stop while running ?

0 Answers   Toyota,

---

what is IP65 & What is its advantages

1 Answers  

---

why does the magnetic balance tests at transformers? how to provide earthing in flight?

1 Answers  

---

How to use earthing on shipments.

0 Answers  

---

Why Neutral Isolation is required?

0 Answers  

---

Why capacitor is blow when I am starting motor ?

1 Answers  

---

difference between Ac and Dc mcb ????

0 Answers  

---

What is the ratio of Booster transformer?

0 Answers  

---

Rated moter voltage and frequency is 380volt 60 hz but moter is running at 380votac 50hz is this harmful for moter winding

1 Answers   Infosys,

---

the power consumption of perminant magnet moving coil?

1 Answers  

---

What is the min.& max distance between two earth spikes is required for measuring earth resistance of an earth pit? Is the manufacturer of Earth tester decides this? Pls explain.

3 Answers   ABB, HAL,

---