SAFETY DEVICE OF DRAW OUT TYPE AIR CIRCUIT BREAKER

摘要

PURPOSE: A safety device of a draw out type air circuit breaker is provided to prevent previously a fault due to the movement of the air circuit breaker by installing a fixing block at the cradle. CONSTITUTION: An air circuit breaker(1) is installed on a rail of a cradle(2) in order to be shifted to a drawable position, a test position, and a driving position, respectively. A fixing block(3) is fixed at the cradle(2). The fixing block(3) is located at an upper portion of the air circuit breaker(1) in order to control the movement of the air circuit breaker(1) when the air circuit breaker(1) is located at the driving position. The fixing block(3) is located at the predetermined position separated from the air circuit breaker(1) when the air circuit breaker(1) is located at the test position or the drawable position.