what are the differenc between vcb and sf6 breakers
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Answer Posted / jayakumar v
VCB MEANS VACUUM CIRCUIT BREAKER 11 TO 33 KV IS APPLICABLE.
INSIDE OF THE BREAKER HAVING AN ONE VACUUM INTERRUPTER WITH CONTACTS. HERE VACUUM IS AN ARC QUENCHING MEDIUM. INSIDE OF INTERRUPTER VACUUM HAS BEEN CREATED BY MECHANICALLY (MANUAL) OR ELECTRICALLY(THROUGH DC MOTOR).
SF6 BREAKER MEANS SULPHURHEXA FLUORIDE BREAKER. IN UPPER SIDE OF THE BREAKER HAVING AN GAS POLE ASSEMBLY. INSIDE OF THE POLE ASSEMBLY HAVING AN MALE & FEMALE CONTACTS. ALWAYS MAINTAINING 3.8 Kpa PRESSURE INSIDE OF POLE FOR 33 KV LINE.THIS BREAKER RANGES UPTO 750KV.
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