What is the method of Tan delta test for power Transformes and why it is required.

1 Answers  

---

How power factor of electric system improved?

6 Answers   Nalco,

---

What voltage is used in Directional earth fault relay? and why?

5 Answers   L&T,

---

What will happen if the d.c. Shunt motor opened accidentally running on no-load has its shunt field winding?

0 Answers  

---

i have 3500 amp load and select current transformer and perches.how i calculate .please understand

0 Answers  

---

describe the Operation of induction generators from bus bars

0 Answers   AMIE,

---

How much minimum insulation required between 11kv/3.3kv transformer windings?

0 Answers   Descon,

---

i have 60Hz motor, can i run it at 50Hz power supply ???

2 Answers  

---

why we decide alternating wave form in ac system and not in dc system

2 Answers   GMR,

---

The unit of quantity of electricity is the:(a) volt(b) coulomb(c) ohm(d) joule

1 Answers  

---

describe the constructional features of an auto transformer and its principle operation

0 Answers  

---

Why the CT Secondary is rated as 5A generally?

2 Answers  

---