Sulpur Hexa-Fluoride(SF6) is the gas used to quench the arc in a Vacuum circuit breaker.
SF6 is a inert gas and is in-organic,colorless,odorless,non-flammable gas used as an outstanding electrical insolater.
AnswerAs its name suggests, the arc is extinguished within a vacuum. No gas is involved.
Vacuum circuit breaker is used in railway applications and as it is used in the applications where current chopping phenomenon is more
Dielectric Strength of Vacuum is more than that of Air. In HT voltage is more than LT. So VCB is used in HT & ACB in LT. Rakesh Gaikwad
Actually ACB isused for Low Tension side and VCB is used for High Tension Side..Chappa matter
A local breaker backup relay is used to check the operation of distribution circuit breakers and to trip the feeder circuit breaker if the distribution circuit breaker fails to trip on an overload.
SF6 circuit breaker
"Air" and "Vacuum" describe how the breaker extinguishes the arcing current. An Air breaker opens far enough that the dielectric strenght of air is enough to extinguish the arc. A vacuum breaker's contacts are in a vacuum. Oil breakers use oil. SF6 breakers use SF6 gas to extinguish the arc.
Vacuum circuit breaker is used in railway applications and as it is used in the applications where current chopping phenomenon is more
VCB (vacuum circuit breaker) is used in HV (high voltage) applications. ACB (air circuit breaker) is used in LV (low votage) applications.
Dielectric Strength of Vacuum is more than that of Air. In HT voltage is more than LT. So VCB is used in HT & ACB in LT. Rakesh Gaikwad
A fuse or circuit breaker used in a circuit is usually inserted in series with the load.
A fuse or circuit breaker will fit this description.
Circuit breaker or switch
An electrical breaker is a safety device used to open a circuit that has an electrical fault on it.
Air-blast circuit breakers are used to disconnect high-voltage transmission or distribution circuits in the event of a fault. One circuit breaker is required for each of the three line conductors; there is not normally a neutral conductor in high-voltage three-phase transmission/distribution lines.
Actually ACB isused for Low Tension side and VCB is used for High Tension Side..Chappa matter
A local breaker backup relay is used to check the operation of distribution circuit breakers and to trip the feeder circuit breaker if the distribution circuit breaker fails to trip on an overload.
SF6 circuit breaker