SF6 Circuit breaker



                                                                *construction* 


 ~ These include fixed contact and moving contact.

~ the arching horn is kept in fixed contact and on the fixed and moving contact and on the arching horn.

~ this material is arc resistance.

~ a rectangular hole is placed next to the moving contact.

~ sf, the gas exit through it doing its own thing.

~ both contact are kept in one chamber.

~ this chamber is called the arc chamber or arc interruption chamber.

~ in this chamber sf, gas is in opposite position at a pressure of 2.8kg\cm.


                                                          *working*


~ in healthy condition when the contact is closed is closed sf gas of 2.8kg\cm fault occurs in the arc chamber.

~ the moving mechanism is opened by the operating mechanism and an arc is generated between the fixed and moving contact.

~ sf the valve of the gas enters the arc interruption chamber at a pressure of 14kg\cm.

~ due to the hypertensive blow of sf, the arc cools and absorbs the electron of the arc.

~ this makes the improbable native ion, so that the die electric strength increases  rapidly and the arc dries out.

~ the valve closes with the help of a spring after the operation of the breaker.

~ exhausted sf is refused by reconditioning the gas.that