Development of a connector control scheme in 6-10kV networks

The article presents the results of research on the development of a circuit for remote control of a disconnector in 6-10 kV networks for rural power supply systems in order to increase the reliability of power supply systems. The device is based on an RLC disconnector with an electromechanical drive, as well as a rectifier, a current transformer, a battery charging unit, a charging controller, a storage battery, a photovoltaic module, a remote control system for an electromechanical drive and a switching unit for the power supply circuit of an electromechanical drive. The principle of operation of the disconnector is that a direct current electromagnet is used to drive the mechanical part, which receives power through the switching unit of the power supply circuit of the electromechanical drive from the battery. The switching unit of the power supply circuit of the electromechanical drive is controlled remotely through the remote control system of the electromechanical drive. Also presented is a method for calculating the power of a photovoltaic power plant and choosing a battery for a remote drive of a disconnector. To provide power supply to the disconnector drive, it is necessary to have a solar module with a power of 25 W and a storage battery with a capacity of 40 Ah. Possible options for choosing the electrical equipment of the disconnector drive power supply system are also considered.