Why VCB and SF6 breakers to be used in HT used by cant ACB
of higher rating to be used for 11kv and 33kv.
- 8 Answers
- 28029 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / kuldeep mehla
Beacuse Dielectric strength of vacuum & SF6 gas is more as compared to ACB. Therefore, for maintaining dielectric strenght to quench the arc at the same voltage level the size of ACB will be more compared to VCB & SF6. Therefore, ACB used in low tension line mostly.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
what is the significance of cabability curve of alternator
How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?
Define corner frequency?
What are the different power system losses and how can it be eliminated?
can you please send me the technical questions and aptitude questions of honeywell and jindal steel electrical engg. question paper my e-mail ID is(kkesavanraj@gmail.com)
If Dg set load increase 25%, How much increase fuel Consumption (15 kva 2 cylinder DG set)
33kv substation lay out details & line to line & line to earth measurements
why voltage form factor of PT are increase , when it is ecpected heigher spikes in system. how it is calculated.
how does ELR works? explain
Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.
what is meant by 2 within a star in a voltmeter dial?
How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)
why dimmerstate always connected in star connection? what will happen if it connected in delta?
for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv
Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?
