Lg Industrial Systems Co., Ltd.

Ki Soo Yang

An air circuit breaker which includes an interlock apparatus which is capable of controlling translocation accurately by preventing deformation and the bending of a lead bar and by minimizing the tolerance in production by constructing the lead bar as two separated bodies and including a guide means for guiding the movement of the lead bar. The interlock apparatus is installed to a base frame for indicating the position of the breaker body, such as a disconnected position in which the breaker body is totally separated from the cradle, a tesing position for testing the breaker body and a connected position in which the breaker is connected to the cradle.

Air circuit breaker

In an air circuit breaker, in order to provide a position indicating apparatus of a draw out type air circuit breaker which is capable of distinguishing a position of a breaker body accurately even a user can not distinguish colors by improving a structure for indicating a position of the breaker body, in a position indicating apparatus of an draw out type air circuit breaker comprising a lead bar rotatably placed at a base frame and moving in a direction opposite to a moving direction of a lead screw by abutting to one wall surface of a cradle and a cam connected to the lead bar and rotating by the linear movement of the lead bar, the position indicating apparatus includes a movable plate connected to the cam and converting the rotation of the cam into the vertical linear motion, an indicating cam connected to the movable plate, converting the vertical linear motion of the movable plate into the rotation motion and having a portion indicating a position of the breaker body according to the rotation, and a front plate placed at the front of the movable plate and selectively indicating a position of the breaker body according to the rotation of the indicating cam.

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Daejeon, South Korea

Ki Soo Yang