Why transformer neutral earthing? What is advantages?6 45240
What happens if ac is applied to dc systems and vice versa?5 5276
last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?1 2386
When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?2 3189
When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?6 5201
What are the solutions for avioding sulfide formation at bimetalic (Copper &Aluminium)overhead joints?
In three pin socket normally three pin in between three pins earthing point is more thickness why?6 10181
why corona ring is used in out door switchyard lightning arrestor3 11922
the distance from my office to d.g is aprox 400mtrs and voltage drops ibn my office near about 40 volt what should i do p[ls suggest.4 3286
in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)
The gauge indicates the number of amps, but what about voltage? How voltage rating (for wire or fuse) determined?
why it is so called as xlpe(cross linked poly ethyline) cable?
How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?
Why derating factor os applied on Cables?
why most of junction box vendors providing T5/T6 Temp class jb's for T3 area any special reason?
What is a signal flow graph?
Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?
Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?
Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?
If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these
what may the reason for vector shift in a generator?
If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?
What does bode plots shows?
what about the power of wattmeter at starting and loding?