KINETROL motor Germany KINETROL model KINETROL price

KINETROL motor refers to a motor with a speed exceeding 10000r/min. Due to their high speed, their volume is much smaller than that of ordinary motors of the same power. Connected directly to the prime mover, they eliminate traditional reduction gears. With low rotational inertia, high-speed motors offer advantages such as high power density, effective material savings, high transmission efficiency, low noise, and fast dynamic response.

KINETROL motor advantages

Motor advantages: Compared to asynchronous motors, permanent magnet synchronous motors have significantly higher efficiency under light load. Their high-efficiency operating range is wide, with efficiency greater than 90% in the range of 25% to 120%. The rated efficiency of permanent magnet synchronous motors can meet the Class 1 energy efficiency requirements of current national standards, which is their greatest advantage in energy saving compared to asynchronous motors. In actual operation, motors rarely run at full power when driving loads. This is because, on one hand, designers usually determine motor power based on the extreme operating conditions of the load, which occur infrequently. Additionally, a power margin is reserved during design to prevent motor burnout under abnormal conditions. On the other hand, manufacturers typically reserve a certain power margin beyond the user's required power to ensure reliability. As a result, most motors in actual operation work below 70% of their rated power, especially when driving fan or pump loads, where motors usually operate in the light load region. For asynchronous motors, light-load efficiency is very low, whereas permanent magnet synchronous motors maintain high efficiency even in the light load region.

KINETROL motor cooling method

Motor cooling methods include: 1) Cooling: During energy conversion, a small portion of losses in the motor is converted into heat, which must be continuously dissipated through the motor housing and surrounding medium. This process of heat dissipation is called cooling. 2) Cooling medium: A gaseous or liquid medium that transfers heat. 3) Primary cooling medium: A gaseous or liquid medium with a temperature lower than that of a specific motor component, which contacts this component and carries away the heat it releases. 4) Secondary cooling medium: A gaseous or liquid medium with a temperature lower than that of the primary cooling medium, which removes the heat released by the primary cooling medium through the motor's outer surface or cooler. 5) Final cooling medium: The final medium to which heat is transferred. 6) Ambient cooling medium: The gaseous or liquid medium in the environment surrounding the motor. 7) Remote medium: A medium located far from the motor, which absorbs heat from the motor and discharges the cooling medium to a remote location via inlet and outlet pipes or channels. 8) Cooler: A device that transfers heat from one cooling medium to another while keeping the two media separated.

KINETROL motor classification

Motors are divided into three basic types: electromechanical, magneto-electric, and linear. Electromechanical stepper motors consist of an iron core, coils, gear mechanisms, etc. When the solenoid coil is energized, it generates magnetic force, pushing the iron core plunger to move. The output shaft rotates by an angle through the gear mechanism, and an anti-rotation gear holds the output shaft in the new working position. When the coil is energized again, the shaft rotates by another angle, performing step-by-step motion. Magneto-electric stepper motors have a simple structure, high reliability, low cost, and wide application. They mainly include permanent magnet, variable reluctance, and hybrid types. The rotor has permanent magnet poles that generate an alternating polarity magnetic field in the air gap, and the stator consists of four-phase windings. When the A phase winding is energized, the rotor turns toward the magnetic field direction determined by that phase. When the A phase is de-energized and the B phase winding is energized, a new magnetic field direction is generated. The rotor then rotates by an angle to align with the new magnetic field direction. The sequence of energized phases determines the direction of rotor rotation. If the stator excitation changes too quickly, the rotor cannot keep up with the change in the stator magnetic field direction, resulting in step loss. Low starting and operating frequencies are a disadvantage of permanent magnet stepper motors. However, permanent magnet stepper motors consume less power and have higher efficiency. In the early 80s of the 20th century, disc-type permanent magnet stepper motors with disc rotors appeared, bringing the step angle and operating frequency to the level of variable reluctance stepper motors.

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