which type of breaker sould be used for different level of
voltage ? (i.e at 11 Kv, 33 Kv, 66 Kv....
Answers were Sorted based on User's Feedback
For 11KV Vaccum Circuit Breakers(VCB) are suitable to use.
Now-a-days SF6 (Sulphor Hexa Fluoride) breakers are
available but VCBs are economical than SF6 breakers.
For 33KV - both VCB & SF6 breakers can be used,but SF6
breakers are safer than VCBs. VCBs are more economical
For 66KV - SF6 breakers are the best to use
Is This Answer Correct ? | 12 Yes | 2 No |
Answer / birinchi narayan boruah
For LT: 415 V
Use ACB (Air blast Circuit Breaker)
For 11KV and 33KV:
Use VCB (Vaccum Circuit Breaker) or SF6 CB (Sulphar Hexa Floride Circuit Breaker).
For 66KV, 132KV and 220KV:
use SF6 Circuit Breaker or Oil Circuit Breaker
Is This Answer Correct ? | 10 Yes | 3 No |
Answer / nikhil panchal
Below 15kV AIR CB
22 to 66 kV VCB
115-230 kV SF6
UPTO 765kv ABCB
Is This Answer Correct ? | 4 Yes | 1 No |
below 36kV, it is better to use VCB, and above 36kV to use SF6
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / jegan.j
11kv - vcb (vaccume circuit breaker)
mccb(moulted case circuit breaker)
mcb(maniature circuit breaker)
acb(air circuit breaker)
33kv - sf6
66kv - sf6
Is This Answer Correct ? | 2 Yes | 2 No |
Answer / fazil pasha
For 11KV Vaccum Circuit Breakers(VCB) are suitable to use.
Now-a-days SF6 (Sulphor Hexa Fluoride) breakers are
available but VCBs are economical than SF6 breakers.
For 33KV - both VCB & SF6 breakers can be used,but SF6
breakers are safer than VCBs. VCBs are more economical
For 66KV - SF6 breakers are the best to use
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / manoj
upto 11kv air break or oil break type.
between 11kv to 66kv mainly oil CB.
between 132kv to 275kv is shared by oil and gas blast CB.
between 400kv and above gas blast(SF6)type.
Is This Answer Correct ? | 2 Yes | 3 No |
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