▎ 摘　　要

NOVELTY - The capacitor has outer sleeve of the sliding cylinder that is connected with a spring. One end of the spring is in conflict with a fixed support. The other end is in conflict with the conflicting plate. The sliding rod is provided with a magnet at one end of the fixing support. The bottom end of the sliding cylinder is provided with a miniature electromagnet which is attracted by a magnet. The mini electromagnet is connected with the turning portion through a wire connected with a voltage sensitive resistor. USE - Graphene capacitor with overvoltage protection. ADVANTAGE - The graphene capacitor with overvoltage protection is effective to use. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the graphene capacitor with overvoltage protection. Housing (1) Graphene electrode (2) Wiring column (3)