working principles of a generator

3 Answers   Cairn,

---

What is servo motor? what is its purpose?

0 Answers  

---

Is there such a frequency as 440v 50Hz?

1 Answers  

---

Why is better to have a minimum ceiling voltage of 250% than 160%?

0 Answers  

---

What is thermal overload relay

2 Answers   Tech Mahindra,

---

---

1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?

2 Answers  

---

If one d.g. is unable to take full load of system, then second d.g. will take care of partly Load.for this condition RPM of both DG set should be equal.By using Synchronization panel RPM of dg sets are match, is it true?

1 Answers  

---

Is there any difference between load based power plant and coal based power plant?

1 Answers  

---

how to Select its CORE in electrical cables based on its applications? or Application of various types of electrical cable based on it CORE?

0 Answers  

---

how do you test tachos and servos

0 Answers  

---

why the earth pin in a 3-pin socket is longer and thickest?

5 Answers  

---

if any one phase of the 11kv/415v distribution transformer not delivering the supply voltage what will happen

2 Answers  

---