Transient state quantity protection starting method and device, readable storage medium and electronic equipment

The invention discloses a transient quantity protection starting method and device, a readable storage medium and electronic equipment. The transient state quantity protection starting method comprises the following steps: acquiring sampling data, wherein the sampling data is obtained by performing high-pass filtering and high-frequency sampling processing on a transient state quantity in a protected power system; on the basis of the sampling data, calculating a first starting amount average value variation sequence and a second starting amount variance sequence; determining that any first starting amount average value variation in the first starting amount average value variation sequence is greater than a first threshold value; determining that a second starting quantity variance before the preset time of the first starting quantity average value variation is smaller than a second threshold value; and starting transient quantity protection. 本申请公开了一种暂态量保护启动方法及其装置、可读存储介质及电子设备。所述暂态量保护启动方法包括：获取采样数据，采样数据是对被保护电力系