The protection appliance has a wedge-shaped fixture block with a side surface similar to a right-angled triangle;
它有一个侧面近似 为直角三角形的楔形卡块；
Meanwhile, the wedge-shaped design of the fixture block can play the role of self-locking, and thus causing the moving and static contacts to be steadily contacted.
同时，卡块的楔形设计能起到自锁的作用，使动静触头能够稳定接触。
Make sure the equipment safety and human safety during the move of transformer. The transformer is fixed with door fixture and chain block after being transported to installation position.
变压器在移动过程中确保设备和人身安全。变压器运至安装位置后采用门型架、倒链就位。
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