Answer / dev prasad

CORONA IZ NOTHING BUT A VIOLET SPARKING LIGHT WID A
WHISPERING NOISE OCCURED IN OVERHEAD TRANSMISSION LINE DUE
TO MOISTURISATION..

Answer / nirmala

corona is a phenomena which occurs in over head transmission lines due to ionization of air around the conductor which results in hissing noise and faint blue glow around the conductor

Answer / shubham

corona is a loss which is occur in transmission line conductor at the rainy season and that the moisture is in atmosphere so the nearer air of conductor gets ionised .
the charge is flow in minimum amount to the air.The hissing sound is create and around the conductor the air is get colour (voilet) change..

Answer / ashish saxena

The phenomenon of appearence of voilent luminous glow and
protection of hasing noise and ozone gas overhead on
transmission line is know as corona.

Answer / santoshkumar

the phenomenon of ozone gas release,hissing sound,violet glow occur arond the conductor is known as corona

what main difference betwenn invetter & ups & major difference

2 Answers   ABB,

why we cant use AC supply products in DC supply?

21 Answers  

How to calculate cable size by using load.?? Any formula...

0 Answers  

If we have use two power cable for incomer, that time how many use cbct for earth leakage protection? 1 or 2 if 1 way? If 2 way?

0 Answers   REM Electromech Pvt Ltd,

what type of current supply is given to house holds?

7 Answers  

why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

7 Answers   HCIL, Jindal, Siemens,

What is the difference between Type test and Routine test?

10 Answers  

what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/

0 Answers  

need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

0 Answers  

Then what do you call a transformer that is installed on the ground?"

1 Answers  

choose the non-switch device (A) transformer (B) diode (C) transistor (D) IC

3 Answers  

how does the rotating m.m.f is produced in the 3-phase induction motor and how the poles are created in 3-phase induction motor ?

0 Answers