Answer / sidharth

It depends on condition in which you are operating it.

If you are operating it over excited and on no load condition then its power factor is greater than 1(this is used to used to improve power factor).

If it is operating in under excited condition then power factor is less than 1.(it will supply reactive power).

how do skin effect is reduced when hallow cond or stranded cond are used ?

1 Answers  

---

why 30 ma elcb is used ?why cant 100 ma?

3 Answers  

---

generally rectifying of ac tells. ac signel appear at phase and neutral with respect to frequency by -veand +cycles. but we doesn't experience shock with neutral in house hold ac??????.

1 Answers   ETA, RRR, TCS,

---

what are different types of alternator and discuss about the methods of cooling

16 Answers   Bhel, Jindal, L&T, Nalco, Vedanta,

---

While testing LA mast,What are the parameter limits ?

0 Answers   TATA,

---

---

Tell me about Tesla.

1 Answers   Tata Power,

---

What are the types of feedback oscillators?

0 Answers  

---

if we put a energy meter in 500 kvar capacitor bank ,then how much units show in energy meter per day.

2 Answers  

---

what is load cell

3 Answers   TATA, Wipro,

---

describe the A.C. Generator Testing procedure

0 Answers  

---

why star 2 delta or delta to star preferred mostly then star to star and delta to delta ?

1 Answers  

---

why for transformer protection we protect tranformer from 3rd hormonics and 5th hormonics and what is the reason of generating these horminics in electrical system?

2 Answers   Essar, LG, OPS,

---