Transformer mechanical instability active protection method, device and equipment and storage medium

The invention discloses an active protection method, device and equipment for mechanical instability of a transformer and a storage medium. The transformer mechanical instability active protection method comprises the steps that voltage, current, oil pressure, oil temperature and oil tank surface vibration signals of a transformer are collected in real time; when the current amplitude of the transformer is greater than or equal to 1.5 times of the current rated value or the vibration amplitude of the transformer is greater than or equal to 1.5 times of the full-load vibration amplitude, the mechanical state of the transformer winding is evaluated by using voltage, current, vibration waveform, oil pressure and oil temperature data within 0.2-1.0 second before transformer transaction triggering and within 0.3-0.4 second after triggering; meanwhile, the transformation ratio change rate, the odd harmonic ratio and the sound stream ratio of the winding within 0.2-1.0 second before triggering and within 0.3-0.4 sec