Sf6 Breaker Symbol. Sf 6 sulphur hexafluoride gas has excellent dielectric arc quenching chemical and other physical properties which have proved its superiority over other arc quenching mediums such as oil or air. Due to high electronegativity it has a high affinity for absorbing free electrons.
The circuit breaker poles contain sf6 at a pressure of 380 kpa for 36kv application and 550kpa for 40 5 kv application. An sf6 circuit breaker is a type of circuit breaker in which sulphur hexafluoride gas or sf 6 gas is used as the arc quinching medium known as an sf6 circuit breaker. Sf6 electrical circuit breaker is a device where a current is operating with sf6 or sulphur hexafluoride being carried on its contacts.
F g connection type symbol h impedance packaged equipment a rated load b unit hp kw kva as indicated c d potential transformer a quantity b ratio c d connection type symbol ll lr vfd reduced voltage solid state starter with features as shown 3 quantity x size of conductors ΓΈ designates phase conductors 1 quantity y.
The circuit breaker poles contain sf6 at a pressure of 380 kpa for 36kv application and 550kpa for 40 5 kv application. Sf6 circuit breakers sf6 has a number of advantages for use as an electrical insulator. Due to high electronegativity it has a high affinity for absorbing free electrons. Logo says the sf6 circuit breaker manufacture details.
