WLD9701 Box Transformer Protection and Measurement Control Device is an intelligent power equipment that integrates protection, measurement and control, and communication. It is widely used in the high and low voltage side box transformer systems of new energy fields such as wind power, photovoltaic, and energy storage, and is particularly suitable for two-branch wiring scenarios (such as photovoltaic booster stations, wind farm box transformers, etc.). Its core functions include real-time monitoring, fault protection, remote control, and data communication, making it a key piece of equipment for new energy power stations to achieve "unattended" and intelligent management.