The YBVP2 series explosion-proof variable frequency speed regulation three-phase asynchronous motor is a derivative product of the YB2 series explosion-proof three-phase asynchronous motor. The YBVP2 series explosion-proof variable frequency speed regulation three-phase asynchronous motor can achieve stepless speed regulation in the system composed of the variable frequency speed regulation device, in order to achieve energy saving and automation control. The YBVP2 series motor adopts a squirrel cage structure, which is reliable in operation, easy to maintain, and equipped with an independent cooling fan to ensure good cooling effect of the motor at different speeds. The YBVP2 series motor is suitable for various transmission devices that require speed regulation, mainly used in industries such as coal mines, oil and gas, petrochemicals, and chemical industries that require explosion-proof. Usually used to drive pumps, fans, compressors, and other transmission machinery. The YBVP2 series motor explosion-proof signs are divided into ExdI, Exd II AT4, and Exd II BT4, among which Exd I is suitable for coal mine working face environments with methane or coal dust explosive gas mixtures; Exd II AT4 and Exd II BT4 are suitable for environments where explosive gas mixtures of Class A, Class B, temperature groups T1, T2, T3, and T4 are present in factories.