Possibilities of increasing the power of the nanographite current limiter

Abstract

The article discusses the possibilities of increasing the switching currents of the previously proposed contactless nanographite current limiter. It is shown that an increase in the length of the contact pads to 1 m will reduce the electrical resistance of the film by a factor of 10,000 – to ~ 0.1 Ohm, and the switching current will increase to 1 kA, while the power dissipated by a contactless nanographite current limiter will increase to 100 kW. The possibility of heat removal by means of water cooling using a chiller of appropriate capacity is being considered. The analysis shows that these measures will make it possible to create a competitive current limiter for smart grids based on nanographite film.