Answer / mohd rehman

corona is hissing noise in the high voltage transmission line in which the air is ionized then a noise creating

Answer / pankaj

corona loss can be defined as the energy wasted in ionisation of air around overhead transmission line.

Do I need a special Transformer to put 240 VAC 3 phase into it and and get 480 VAC 3 phase out of it to run a machine? Or, do I just use an ordinary step down transformer and step up the voltage? Thanks

2 Answers  

---

hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds

0 Answers  

---

why corona ring is used in out door switchyard lightning arrestor

3 Answers  

---

What is the limitation of kirchoffs law?

0 Answers  

---

What are difference between earthing switch and earthing truck ? What is the operation philoshopy of earthing truck ? Wht are the component of earthing truck ?

2 Answers   Reliance,

---

---

what is the dis-advantage of 3 phase 3 wire energy meter?

1 Answers   Exide, Nelco,

---

Upto what extend the powerfactor of a supply system can be improved to be cost effective?

1 Answers  

---

why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.

0 Answers   Siemens,

---

if 300 hrs not comleted at wat interval b.c,d checks og take place

1 Answers  

---

how to calculate the mf of kwh meter,if ct the ratio on meter is 100/5A

2 Answers  

---

Why we use Electrical energy rather than any other type of energy, mostly? Explain behavior of open secondary CT and short circuited secondary PT in energized condition?

0 Answers  

---

A 150KW 440V motor is need to replace in the field instead of faulty one. what are the main parameter should I need to check?

1 Answers  

---