Hello friends, Can anyone explain the concept of zones in Bus bar protection and how can we differentiate the main zone and check zone in Bus bar protection

1 Answers   ABB, NCC,

---

wat is the function of an inductor? examples.....

4 Answers  

---

What is the impedence of Transformer?

2 Answers  

---

what happens when reactive power increases ? does the reactive power loss increase or decrease ?

2 Answers  

---

FEINGING DECREASES THE FLUX DENSITY IN THE AIR GAP. HOW?

0 Answers  

---

Why are use 22 kv 3ph supply ?

1 Answers   IOCL,

---

What is the frequency of dc current????

4 Answers   SCS,

---

State and define ohm’s law?

0 Answers  

---

If we give 2334 A, 540V on Primary side of 1.125 MVA step up transformer, then what will be the Secondary Current, If Secondary Voltage=11 KV?

3 Answers   L&T,

---

What type of tranformer generaly at soft wares like capacity 2000 kva 1800 kva etc iam confused it CT or PT OR distribution tranformer

3 Answers  

---

Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.

0 Answers  

---

How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?

0 Answers   Vodafone,

---