Three-phase asynchronous motor should be stored in a dry, ventilated warehouse. The appropriate temperature in the warehouse should be kept within the range of 5 ° C ~ 35 ° C, the relative humidity should not be higher than 65%, and harmful gases, steam, smoke and dust should be prevented from invading.
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Where there is a backup three-phase asynchronous motor to implement a regular switching system, it is strictly prohibited to use fatigue and no accident without switching mode of operation. A proper switching period should be determined based on the structure, operation characteristics, and maintenance period of the standby device. If the standby device needs to be started in advance due to a device fault, calculate the switching period from the switching date to avoid frequent switching.
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Through the reverse phase sequence, the reverse moment that retards the motor is achieved, which is called reverse braking. It belongs to a braking mode of the motor. Below, Senli Motor Xiaobian will take you to understand some content about reverse braking of three-phase asynchronous motors, and hope to help you.
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After the motor is separated from the three-phase AC power supply, a DC voltage is added to the stator winding, and the direct current is passed into the direct current, and the action of the rotor induced current and the static magnetic field is used to achieve the purpose of braking. Here is a small series with Senli motor to understand the next.
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The general application of the brake motor needs to achieve a rapid stop in the occasion, in various ways to make the rotation direction of the rotating magnetic field of the motor and the rotation direction of the rotor opposite, thus generating an electromagnetic braking torque, so that the motor quickly stop and rotate; Senli Motor Xiaobian will take you to understand some of the use of brake motors and precautions.
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Three-phase asynchronous motor is a kind of AC motor, the relationship between the speed of the load and the frequency of the power grid is not constant, will change with the size of the load; Such as electromagnetic braking motors, variable frequency motors, etc., are known as three-phase asynchronous motors, and the following Senli motor Xiaobian will take you to understand some of the structural advantages of three-phase asynchronous motors.
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For some DC motors after overhaul, we need to check the polarity of the winding and the correctness of the connection; Check the correctness of the connection between the main pole and the commutator pole windings; Check the correctness of the connection between series and shunt windings (or between each shunt windings); Here is a small series with Senli motor to understand the next.
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The method of using a mechanical device to disconnect the brake motor from the power supply and quickly stop is called mechanical braking. The common methods of mechanical braking include electromagnetic holding brake and electromagnetic clutch brake. We call this kind of motor alternating electromagnetic brake motor, below and Senli motor Xiaobian together, a simple understanding of the way of braking.
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The main reason of the three-phase asynchronous motor three-phase circuit asymmetry is that the motor power factor is too low during no-load test and the zero drift caused by the three-phase circuit asymmetry. The main role of no-load current is for excitation, at this time, reactive power accounts for the vast majority of the apparent power, and active power only accounts for a small part of the apparent power. Here is a small series with Senli motor to understand.
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Long axis torque motor products, suitable for winding and winding scenarios, can be customized for different industry scenarios, to meet the requirements of use. This product produced by Senli has the characteristics of reasonable structure, high efficiency, good characteristics and long service life.
Shengzhou Senli Motor19Old motor manufacturers, with a number of their own motor production lines, from the shell, shaft, rotor, stator are independent production, all products are the use of professional product quality supervision and testing equipment full inspection factory, can provide testing reports. From the shaft machining to the whole machine assembly are completed independently. Truly realize factory direct sales.
Senli motor products are used180°High temperature resistance all copper coil material, torque motor products can be used with different rotors (ordinary rotors/Steel rotor), rotor of different motor characteristics are different, we from the shell, shaft, rotor, stator are produced by the independent, all products are the use of professional product quality supervision and testing equipment full inspection factory, can provide testing reports.
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