Industry News
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The magnetic steel of the permanent magnet motor is on the stator or the rotor？
Most of the motors are internal rotors, that is, the motor rotor is located inside the stator and outputs mechanical energy through the rotating shaft. The external rotor motor is on the contrary, the initial wire winding is placed on the iron core fixed together with the shaft, the motor is in a...Read More -
Motor bearing and grease selection
The motor is widely used, due to the power size, installation type, protection grade, load type and connection method is different, the selection of bearings is also very different, only the correct selection of bearing type, so that it can adapt to the operating requirements of the equipment, in...Read More -
Considerations for structural design of explosion-proof three-phase asynchronous motors
Explosion-proof motors, as the main power equipment, are usually used to drive pumps, fans, compressors and other transmission machinery. Explosion-proof motor is the most basic type of explosion-proof motor, because of its shell non-sealed structure characteristics, the main flammable gas gas in...Read More -
Why should we choose deep groove rotor for squirrel cage asynchronous motor?
With the popularization of variable frequency power supply, the starting problem of motors has become easy to solve, but for ordinary power supplies, the starting of squirrel cage rotor asynchronous motors has always been a problem. From the analysis of the starting and running performance of as...Read More -
Large motor shaft voltage analysis and solutions
Four sets of bearings were replaced consecutively at the shaft extension end of a motor, which was eventually found to be due to shaft voltage. Shaft voltage is a frequent problem in the operation and testing of high-voltage and low-voltage high-power motors. In order to ensure the normal operati...Read More -
When selecting an inverter, is it necessary to consider the slot characteristics of the motor rotor?
For continuous changes in speed requirements for the conditions, will use a frequency converter to drag the motor, that is, through the motor power supply frequency changes, to achieve stepless adjustment of motor speed. In the original tweet we have talked about, through the frequency converter ...Read More -
Explosion-proof motor safety advantages over ordinary motors
Explosion-proof motors and ordinary motors, with the development of science and technology, production, the existence of explosive hazards in the place is also increasing, such as: flammable and explosive chemical plants, flour milling plants, breweries, oil fields and oil depots … These ex...Read More -
What is a Squirrel Cage Induction Motor and Its Working
A machine that converts electric ennergy into mechanical energy is called electric motor. These are simple in design, easily used, low cost, high efficiency, low maintenance, and reliable. Three-phase induction motors are one of the types and different from other types of electric motors. The mai...Read More -
Why do motor rotors have closed slots?
With the continuous pursuit of motor efficiency, closed-slot rotors are gradually recognized by motor manufacturers. For three-phase asynchronous motors, due to the existence of stator and rotor grooves, the rotation will produce pulsation loss. If the rotor adopts closed slot, the effective air ...Read More -
Why do motors use double squirrel cage rotors
For motors of different uses, in addition to necessary parameters such as power, rated voltage, torque and speed, the matching relationship between the motor volume and the supporting equipment space is particularly important, especially for the case where the space to accommodate the motor is pa...Read More -
How can I prevent broken shaft problems in my electric motor?
For the analysis of the cause of the broken shaft problem, it should be the principle of preventing the occurrence of the broken shaft problem to reduce and eliminate the stress point and exclude the external factors. From the analysis of the construction characteristics of the shaft, from the de...Read More -
What are the characteristics of winding fault when three-phase motor lacks phase?
Under normal circumstances, the power supply and winding of the three-phase motor are symmetrical, when the power supply is out of phase or the motor is improperly connected, resulting in the motor input voltage is out of phase, it will cause the motor winding to appear regular burn phenomenon, o...Read More