Low voltage asynchronous motor | Low voltage AC asynchronous motor

::.Low-voltage asynchronous motor< |< Low-voltage AC asynchronous motor
:.1, < <, < R< series low-voltage three-phase asynchronous motors can drive a variety of different machinery, such as fans, compressors, water pumps, Crusher, ball mill, cutting machine tools, transportation machinery and other equipment can be used as prime movers in coal mines, machinery industry, power plants and various industrial and mining enterprises. << series are squirrel cage rotor three-phase asynchronous motors. < R< series is a wound rotor three-phase asynchronous motor. < < series of motors comply with the Ministry of Industry and Commerce standards< -< technical conditions. < R< series motors comply with the requirements of the ministry-issued machine standards < < technical conditions. This series of motors are protected. It can also be made into pipe ventilation type according to user needs. Protected motors should be installed indoors where the altitude does not exceed < < and the ambient air temperature is not higher than < +< ℃ and not lower than < < ℃, where the air is clean and free of corrosive gases such as acids and alkalis. The motor is not allowed to work in an environment containing explosive gas or dust. When the temperature of the air around the motor exceeds the above regulations or the air is not clean, the general method of ducting should be used. At this time, the temperature of the cooling air flowing into both ends of the motor should be < < ℃ < < ℃ and the air pressure inside the pipe and motor should be ensured to be higher than the pressure of the surrounding air. If necessary, a blower, dust filter, etc. should be installed. < < Series squirrel cage motors allow full voltage direct starting. The ratios of the initial starting torque and initial starting current values to the rated values are shown in the table < <. If the user's power grid does not allow direct starting at full voltage, reduced voltage starting can be used. But at this time, the starting torque will decrease in a square relationship with the starting voltage. < R< series motors must have a starting rheostat connected to the rotor circuit in advance when starting. It is not allowed to start by short-circuiting the rotor winding directly.
:. 2. The original installation type of low-voltage asynchronous motor is horizontal installation with base and feet. All types of motors can use couplings to connect with the driven machinery. The motor adopts a radial ventilation system with symmetry on both sides. The cooling air enters from the air inlets of the end covers on both sides. Part of the air passes through the fan or wind blade on the motor rotor and blows through the termination part of the stator coil. The other part of the air passes through the rotor core. Radial ventilation slots, and then escape from the air outlet on the side of the base.