Transformer voltage out-of-limit risk assessment method, device and equipment and storage medium

The invention discloses a transformer voltage out-of-limit risk assessment method, device and equipment and a storage medium. The method comprises the following steps: acquiring a wiring mode and transformer parameters of a transformer in a low-voltage power distribution network in a target station area; determining a corresponding power change model according to the wiring mode, and obtaining a second power change amount of the primary side power according to the power change model and the first power change amount of the secondary side power; wherein the power change model is constructed according to the voltage, current and power conversion relation between the primary side and the secondary side of the transformer in the wiring mode; according to the transformer parameters and the second power variable quantity, the phase voltage variable quantity of the primary side is obtained through calculation; and evaluating the voltage out-of-limit risk of the transformer according to the phase voltage variable qua