The TBYP1 series explosion-proof variable frequency speed control three-phase permanent magnet synchronous motor must be used in conjunction with a vector frequency converter. The rotor of this series of motors adopts a built-in permanent magnet structure and has a certain convex level speed. The frequency converter equipped with the maximum torque/current ratio control method enables this series of motors to have a high power factor, no-load current, low working current, and low copper loss throughout the entire speed range. After embedding a permanent magnet in the rotor, the rotor and stator magnetic field operate synchronously during normal operation, and the rotor winding has no induced current, rotor resistance, and hysteresis loss, Improved motor efficiency: When the motor operates at a load of 35% -120%, the efficiency and power factor are both high, and the energy-saving effect is obvious. Our company's TBYP1 series explosion-proof variable frequency variable speed three-phase permanent magnet synchronous motor is a modified design. The power and installation dimensions of this series of products comply with the International Electrotechnical Commission (IEC) standards, and their corresponding relationship is the same as the German DIN42673 standard.