Secondary circuit breaker for distribution transformers

In a circuit breaker assembly including a circuit breaker unit composed of a fixed current contact and a movable current contact connected in a current path, a mechanism supporting the movable current contact for movement between a contact closing position in which the movable current contact is in contact with the fixed current contact to complete the current path and a contact opening position in which the movable current contact is separated from the fixed current contact to open the current path, latch means movable between a latching position for engaging the mechanism to enable the mechanism to be in contact closing position and a release position for releasing the mechanism to allow the mechanism to move to the contact opening position, and latch actuating means coupled to the latch means for moving the latch means between the latching and release positions, the improvement wherein said circuit breaker unit further comprises biassing means connected to urge said mechanism into said contact closing position, and said assembly further comprises:

• circuit breaker control means disposed at a location remote from circuit breaker unit and movable between a circuit breaker opening position and a circuit breaker closing position;
• and a first flexible cable connected between said control means and said mechanism for moving said mechanism in response to movement of said control means such that movement of said control means to said circuit breaker opening position moves said mechanism to said contact opening position and movement of said control means to said circuit breaker closing position permits said mechanism to move, under the influence of said biassing means, into said contact closing position.