when we are going to higher voltage level in substations why
we are using Sf6 circuit breakers instead of Vacuum circuit
breakers.
- 3 Answers
- 4704 Views
- I also Faced
- E-Mail Answers
Answer Posted / raul
sf6 CB has far superior arc quenching properties as
compared to other CBs due to tremendous amount of capacity
of SF6 gas to absorb free electrones in the contact
space.........so the dielectric strength is very
high...........and also there is a cost consideration
factor which makes the use of VCB a less viable
proposition.............
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Define the three phase formula fuse.
which metal is use in shunt
A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????
When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
What is the permissable nutral current of three phase system as per IS standards?
what is meant by LCR meter? where its useful ?
why moisture formation found in XLPE Armoured cable outer sheath
How will be the single line diagram of series trip HT breaker? how it works?
What do you mean by transformation ratio of instrument transformer?
WE HAVE THE DC RECTIFIER 1500A, INPUT VOLTAGE IS 3 PHASE. HOW TO CALICULATE THE LOAD? 3 PHASE SIDE EITHER dC SIDE. PLEASE SUGGEST ME
What is safety of Ht panel
Why Neutral Isolation is required?
when ID fan will immediately stop through VFD what exactly cause and problem the ID fan
How will polarity test of Dy5 Transformer ?
why d.c produces corrosion
