Between Star-Delta & Star-Star Power transformer which one is efficent for Earth Fault?

10 Answers  

---

what is the resultant phase shift in a 3 phase power system including neutral if on or more phases gets grounded or short circuited. kindly explain in detail for the reasons...

1 Answers   Enercon,

---

pls send me some of the solved question booklet of Junior Engineer -2 (ELE) in RRB

1 Answers   RRB,

---

technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

0 Answers   Wipro,

---

What will be the minimum megger value of 1700 KVA Transformer? a) Do megger value varies according to climate conditions and area . b) If megger value is 100 mega ohm is it good for new transfomer. Explain?

4 Answers  

---

the single phase voltage is 230 volts and threee phase is 430 v.why three phase is not 660 v?

2 Answers  

---

33kv Rated output avilable in market (any where in india)

0 Answers   C2C,

---

What are the classifications of heating element?

0 Answers   BARC,

---

List some examples of renewable energy?

0 Answers  

---

in a large three phase induction motors usually the value of full load slip is

1 Answers   PSEB,

---

is it possible to minimize the copper loss?

2 Answers   Coal India, TATA,

---

Why does the radius of armature is less than the radius of pole shoe?

0 Answers   ABB,

---