The HSR362E box-type transformer protection and control device is a highly intelligent product independently developed by our company in response to the characteristics of photovoltaic grid-connected power generation and wind farms, as well as the extensive requirements of customers for transformer protection, measurement and control, and communication. This device integrates a communication management unit, an optical fiber ring network switch, and complete protection and control functions for the transformer box, responsible for collecting data information from the transformer box and other equipment, and then transmitting it reliably to the substation monitoring system via self-healing Ethernet/fiber ring network, enabling remote monitoring of the transformer box by the substation, thus meeting the requirements of remote monitoring and intelligent management of the power station.