Answer / felixraj

earth fault protection

Answer / satish panchal

Residual voltage & residual current used in Directional
Over current and directional earth fault protection. also
used in dist protection.

Answer / darshan thakur

Resudal current is used for unbalance protection.& also for
earh fault protection we are used open delata connection of
potential transformer.

Answer / pooh

Surge arrestor

Answer / magesh

yes

WHICH TYPE OF TRANSFORMER IS USED IN POWER TRANSMISSION BASED ON TRANSFORMER CONNECTION ON PRIMARY AND SECONDARY SIDE

3 Answers  

what is the earth resistance ?

5 Answers   Bhel, Cummins,

why secondary of open delta pt (two element pt) centre tap is earth what happen when this earth is removed

1 Answers   Essar,

From stability point of view,What(higher/lower) should be the value of inertia constant of rotating machines?

1 Answers  

I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR

0 Answers  

What is over fluxing in transformer?

1 Answers  

What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.

0 Answers   KOTC,

Hysteresis loss in a core is due to what reason or property of the material used for that core?

1 Answers  

why power factor occur only inductive load not in resistive ?

8 Answers  

Why power factor should not be in leading (capacitive) mode of any load.

3 Answers   GE,

what is the difference between 11kv and 13.8 kv? why we can't used one of these 2 sources?

2 Answers  

Can we manually synchronize two DG sets of same ratings manually without using speed biasing ? If yes then how?

4 Answers