Patent ID: 6015960
Filing Date: 2000-01-18
Classification: H01H

Abstract:
A compressed gas interrupter for opening and closing a circuit, comprising:a first and second contact piece, said first contact piece having a hollow wear contact, said second contact piece having a rod-shaped wear contact, wherein said rod-shaped wear contact is inserted into said hollow wear contact during closing of the circuit;an insulating nozzle disposed on a same axis as said first and second contact pieces, said insulating nozzle having a throat and being fixed to the first contact piece while the rod-shaped wear contact passes through the throat of said insulating nozzle, wherein said insulating nozzle connects a gas compression chamber to an exhaust chamber, andwherein a rack mechanism is provided for opening the circuit by moving the rod-shaped wear contact of the second contact piece and the hollow wear contact of the first contact piece in directions opposite from one another along the axis, so that the first contact piece and the second contact piece are separated from each other, wherein the rack mechanism is disposed upstream from the throat of the insulating nozzle so that a flow of hot gasses escaping from the nozzle during opening of the circuit does not interfere with the rack mechanism.