Electric power automation instrument

The utility model discloses an electric power automation instrument which comprises an instrument box, a body is fixed in the instrument box, a glass door is arranged at a doorway of the instrument box, the instrument box is provided with a pair of sliding grooves distributed on two sides of the doorway, sliding blocks are connected in the sliding grooves in a sliding mode, and the sliding blocks are connected with brushes through telescopic assemblies. The brush is fixed to the top end of the sliding groove through the suspension assembly, the brush is taken down from the suspension assembly, then the brush and the sliding block are pushed to move up and down along the sliding groove, and dust on the glass door can be wiped away through the brush. According to the glass door cleaning device, the brush is taken down from the suspension assembly, then the brush and the sliding block are pushed to move up and down along the sliding groove together, dust on the glass door can be wiped away through the soft brist