Gas Circuit Breaker

摘要

A gas circuit breaker including a pair of main contacts is openable inside an insulating tank. A pair of arc contacts is arranged on the inner side of the main contacts, and a puffer cylinder has the main contacts and the arc contacts at an end. A puffer chamber is formed inside the puffer cylinder, and a puffer piston is provided on the inner periphery of the puffer cylinder. An insulating nozzle part is mounted on an end of the puffer cylinder to surround the arc contact. The insulating nozzle part includes a split nozzle base part and a split nozzle end part, and the split nozzle base part has a throat part.

主权项

1. A gas circuit breaker comprising:
a pair of main contacts being openable inside an insulating tank; a pair of arc contacts being arranged on the inner side of the main contacts; a puffer cylinder having one of the main contacts and the arc contacts at an end; a puffer chamber being formed inside the puffer cylinder; a puffer piston being provided on the inner periphery of the puffer cylinder; and an insulating nozzle part being mounted on an end of the puffer cylinder to surround the one arc contact, wherein the insulating nozzle part includes a split nozzle base part and a split nozzle end part, and wherein the split nozzle base part has a throat part.