what is the dedicated neutral earth in ups? y its required?

4 Answers  

---

How do you select a cable size(cu&Al)for a particular load?

2 Answers  

---

what happens if power factor is maintained at 0.9?give me the answer in technicall way rather than telling the penality n all

5 Answers   NCC,

---

What is the function of lead sheath?

2 Answers  

---

What is voltage ratio of a transformer?

0 Answers  

---

---

WHAT IS METHOD TO DESIGN SIZE OF A 11KV UNDER GROUND CABLE FOR A OUTGOING FEEDER FEEDING 6NOS 250KVA TRANSFORMERS WITH 5KM LENGTH OF FEEDER?

1 Answers  

---

why lightining is not available in swith yards?

1 Answers  

---

what are d/f between cfl and pl lamps,

1 Answers  

---

how can we judge the percentage of load on the basis of temperature differences readings between WTI and OTI in a transformer

1 Answers   Toshiba,

---

WHAT IS SYNCHRONISING?

8 Answers   L&T,

---

What is Antipumping Function & If we have C.T how we find the Ratio ?

0 Answers  

---

if we increase frequency of line, then how will string efficiency varies with it.

2 Answers  

---