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In a real asynchronous motor, the rotor rotates due to the rotating magnetic field. When the three-phase stator windings of the motor are connected to a three-phase symmetric alternating current, a rotating magnetic field is generated. The rotating magnetic field cuts through the rotor windings, generating an induced current in them (the rotor windings form a closed circuit). The rotor conductors of the rotor generate an electromagnetic force under the action of the stator’s rotating magnetic field, thereby producing electrical energy. An electromagnetic torque is generated on the rotating shaft, driving the motor to rotate; the rotation direction of the motor is the same as that of the rotating magnetic field. https://zuolidianji.com/uploads/ueditor/20200707/1-200FG03202Z1.jpg Based on their performance, explosion-proof motors can be classified into ordinary explosion-proof motors, spark-free explosion-proof motors, dust-proof motors, and fire-extinguishing motors. The motor can operate normally under these conditions, without arcs, sparks, or any risks related to high temperatures. The motor’s design allows for the addition of mechanical, electrical, and thermal protection measures to prevent further safety issues such as arcing or high temperatures, even under normal or approved overload conditions. An additional safety moisture-proof heater is installed on the hood at the bottom of the motor, used for heating and preventing moisture buildup when the vehicle is parked. Class F insulation is used, with a temperature rise evaluated at Class B. To meet the requirements of explosion-proof motors, a series of reliable measures are implemented for safe use in hazardous explosive environments, to prevent sparks, arcs, and dangerous high temperatures. When the explosion-proof motor is operating properly, flammable and explosive materials will not be ignited, and usually there is no motor that could cause a ignition failure. Unlike increasing the safety motor, they are the dielectric voltage test voltage, winding temperature rise, and starting current ratio. Design and manufacture dust-proof motor enclosures according to the specified conditions. It can prevent dust from entering the motor housing. Even if a small amount of dust enters the motor, it will not affect its safe operation. Internal dust trails are not easily ignited, and the motor will not cause an explosion in the surrounding explosive dust mixture. The enclosure is highly sealed to reduce or prevent dust from entering the enclosure. The maximum temperature on the control surface of the control shell shall not exceed the specified temperature range.