Fuse Cutout

A fuse cutout is an electrical protection device used in primary overhead feeder lines and taps to protect distribution transformers from current surges and overloads.

The working principle of these devices is to connect the fuse to the series of transformer feeder cables. The connection is through a hinged tubular fuse, in this way the fuse is fixed in position on the cut body. If the link melts and separates under over-current conditions, the fuse holder will drop freely under its own weight, rotate to the hinge, and hang vertically, making its state clearly visible. Most fuse cutouts are designed with a metal ring on the fuse holder. When maintenance and repair personnel need to work on the transformer, the fuse can be using a long insulating stick called a "hot stick" manually disconnected.