what is the difference between HV and LV Breakers?
Answers were Sorted based on User's Feedback
Answer / shri..
1) HV is used for High Voltage lines & LV is used for Low
voltage line.
2) HV breakers have high voltage & low current carry
capacity & LV breakers have low voltage & high current
carru capacity.
3) HV breakers size will be bigger than LV breakers.
4) HV breakers poles gap will be higher than LV.
| Is This Answer Correct ? | 19 Yes | 2 No |
Answer / kannan
* hv (11kv, 3.3kv)breakers mostly used for sf6 or vaccum because breaker inside of conduct points are very near.
* incase use the normal ACB at HT side, induction voltage came so affect the isolation and total system.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / simon
H.V=High Voltage (Above 11K.V)
L.V=Low Voltage (Below 11K.V)
| Is This Answer Correct ? | 1 Yes | 4 No |
Answer / rn
Hv- High voltage Breaker which is gas(SF6 gas) insulated
breaker. While close the HV circuit by using breaker, High
spark appear and Very dangerous. so we r using SF6 breaker
We cant rack out, We shoud lock out the Earth switchs in
busbar side and line side. also close the panels, lock out
the panel.
LV breaker - Air circuit Breaker - we can rack out and Tag
out while perfoming the works in L1,L2,L3 lines
| Is This Answer Correct ? | 0 Yes | 6 No |
Why celling fan rotates in anticlockwise direction and table fan in clockwise direction ? Give technical reason.
when voltage gets down the current of motor increases. but according to Ohm's law voltage is directly proportional to current. plz explain
4 Answers Maruti Suzuki, TATA,
What safety precaution are to be taken for avoiding electric hazards ?
Why is the frequency not changed during transformation of electrical energy in a transformer?
why field winding is placed on rotor winding not on stator winding in case of synchronous machine?
do you have some of interview Questions in power and genrator section in general whith answers
what is the use of spherical metal balls attached on to the earth wire of transmission over head lines?
for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.
If we want the fan to consume less electricity at low speed, what do we have to do?
Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar
Definition of grid?
7 Answers L&T, Pace Power Systems, Vijai Electricals,
Which Kind of machines(in terms of poles) give the smoothest DC
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)