In India,we use 230V,50HZ,where as many other countries use 110V,60HZ what r d advantages and disadvantages of each of them?

8 Answers   GVK,

---

Explain the operation carried out in thermal power stations?

0 Answers  

---

what is thyristor, how is it works

1 Answers  

---

what is differance between dirty earthing and clean earthing and their applications

2 Answers   CB&I Lummus,

---

can HT cable or HT bare conductor used for LT line? is yes what would be the current rating?

2 Answers   ACC, wbsedcl,

---

what is formula for calculate thermal overload in new numiricalrelay( not in bimetal relay)?

0 Answers  

---

I have a transformer whose primary operates at 230V, 50Hz for which the secondary voltage will be 12V, 50Hz. What will be the secondary voltage if the primary is fed with 400V, 8KHZ Signal?

6 Answers   ABB,

---

what is the difference between KVAR & KVA ?

11 Answers   Bombay Rayon Fashions, Hyundai, Pricol,

---

what is phase voltage and line voltage? in line voltage how 415v is obtained?

9 Answers  

---

May I know how much values to be set for earth fault, over current and short circuit values at 11kv side? I have 11kv van 1250amps rating. Present it's taking load 80amps?

0 Answers  

---

what is VFD and where is use of it

5 Answers  

---

how the works electronic energy meter?

0 Answers   Bhel,

---