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Advantages and disadvantages of high voltage motor compared with low voltage motor
High-voltage motor It is generally believed that the motor with a supply voltage of 3KV~10KV is called a high-voltage motor. 6300V and 10000V motors are commonly used. Motor power is proportional to the product of voltage and current, so the power of the low-voltage motor increases to a certain e...Read More -
Three speed regulation methods of DC motor
Dc motor is a kind of motor that uses DC power supply, and its working principle is based on the magnetic effect of current and the effect of magnetic field on current. When the DC power supply provides electrical energy to the motor through the brush and commutator, a constant magnetic field is...Read More -
Rationality of motor bearing clearance selection
Motor products with bearings, by the role of the associated components, both in the radial and axial direction are subject to positioning constraints, the end result of which will have an impact on the clearance of the bearing, which is manifested in the initial clearance of the bearing and the d...Read More -
High voltage motor coil insulation
The coil insulation of high voltage motor has a great impact on the service life and economic effect of the motor, which is a problem that every designer and technician must carefully consider. The high-voltage coil can be called the heart of the motor to some extent, which directly determines th...Read More -
The difference between gas explosion protection and dust explosion protection
Explosion-proof motor is a kind of motor that can be used in flammable and explosive places, and does not produce electrical sparks during operation. According to the explosion-proof principle, the motor can be divided into flameproof motor, increased safety motor, positive pressure motor, non-sp...Read More -
Motor cooling mode
Due to the existence of loss during the use of the motor, the temperature continues to rise, if it is not well cooled, it will affect the service life of the motor. The power of the high-voltage motor is generally large, and the value of its loss power is also large, and cooling is especially imp...Read More -
How to choose high speed motor bearings
Bearing is a key part to support the normal operation of the motor, in addition to the manufacturing process control, the design and configuration of the motor bearing is very important, such as vertical motor and horizontal motor should choose different bearing configurations, different speed re...Read More -
Why are the stators of high voltage motors mostly star connected?
For the three-phase motor, the stator winding has two kinds of connection, triangle and star, star connection is to connect the tail of the three-phase winding together, and the head of the three-phase winding is connected with the power supply; The star connection method has two cases of alien c...Read More -
When the magnetic centerline of the motor is misaligned
The magnetic field of the motor is mainly reflected in the gap between the stator and the rotor, which is what we call the air gap magnetic field. When the motor rotor moves to a certain position along the axial direction, the magnetic lines of the air gap magnetic field are all perpendicular to ...Read More -
Advantages of water-cooled structure motor
Generally speaking, the water-cooled motor is through a special waterway cooling system, the low-temperature water into the waterway, through the circulation system to cool the motor, and then the temperature after the water to cool, the whole process, the motor waterway is a cold water into the ...Read More -
Main aspects of the excellent performance of permanent magnet motors
Compared with ordinary three-phase asynchronous motors, permanent magnet synchronous motors have the advantages of high starting torque, shorter starting time and high overload capacity, which can reduce the installed capacity of the driving motor of the equipment according to the actual shaft po...Read More -
What determines the size of the motor?
Nowadays, the drive motor layout space in the new energy vehicle design is limited, under the condition of meeting the space layout of the vehicle, but also comprehensive motor control system on the motor rotation response time requirements, which requires a reasonable choice of electric length d...Read More
