Answer / sak

SF6 is a good insulator medium, it takes less quenching time, thats why it is used on high voltages

Answer / hasan mehdi

Bcoz it has high arc quenching.

Answer / ankit_17aug

gas qunching good meduim then use

Answer / eedeepak

sf6 is the best material till now because it's ability to extinguish arc

Answer / manju

In ht side current is very low

what is interlocing and what is the purpose of this?

4 Answers   L&T,

why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.

12 Answers   ABB, Adani, Central Electricals, Electrical, HCL,

why need of ac exietation in alternater.

2 Answers  

what is impedance of transformer?

7 Answers   Synergy, Vijai Electricals,

hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

0 Answers  

whis is the formula of converting KW into HP ?

14 Answers  

what is difference between 3.5 core and 4 core cable

5 Answers   Havells,

define B types and C types in MCB ?

3 Answers   Bhel,

if the stetor speed (N S) increase by 20% then the rotor speed will be increased by 20% is it true. ?

4 Answers  

how many types of accuracy class in ct? what is meaning of 5p20?

1 Answers  

what is the differance between ac induction motor and ac synchronous motor?

5 Answers  

how rated the neutral voltage of transformer and reactor, e.g. 400/220, 200MVA transformer have neutral voltage of 33kv. and reactor voltage 145kv. how this rating decided?

1 Answers   MEIL,