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
- 28021 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / grao
In high voltage we use SF6 or VCB.Because if we go to ACB
the arc quenching will no be proper.Where as if we use vacuum
or sulfur hydrochloride the arc quenching can be 100percent.
| Is This Answer Correct ? | 6 Yes | 12 No |
Post New Answer View All Answers
For electrical designers what are the standard should know? i want learn about this standards. how to get information/reference. anybody help in this regards please.
what is class of SPD and dittels of all class ?
What is trip and closing coil in cb? Why need of them
How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.
as a electrical student why should i hire you?
why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?
Can I use distributon class/transmission class Lightning arresots for protecting the building? If not why please explain?
What is mean by Sensitive Earth fault & what are the effects
How many energy meters can be connected on a 15VA Voltage transformer. please send a calculation sheet.
what is the IS foe lightning arrester?
How we calculate the size of ht cable for any transformer
Why the power generated in dams is complex power? Why the generators in dams cannot produce Real power directly (i.e power which has zero reactive part)?
Explain the term parallel path in dc machin ?
in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.
what is diff. between earthing grid,earthing mess, earting grid?
