Selection of motor cables for 90kw, 75kw, and 55kw motors
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I need help choosing the appropriate specification for cables for 90kw, 75kw, and 55kw motors
Select the type and cross-sectional area of the conductor based on the motor’s rated current
A 90kw motor is equipped with a cable of YJV3×70mm2+1×35mm2; a 75kw motor is equipped with a cable of YJV3×50mm2+1×25mm2; a 55kw motor is equipped with a cable of YJV3×35mm2+1×25mm2
A 90kw motor is equipped with a cable of YJV3×120mm2+1×35mm2, while a 75kw motor is equipped with a cable of YJV3×95mm2+1×25mm2. A 55kw motor is equipped with a cable of YJV3×70mm2+1×25mm2
It is also necessary to know the startup method and transmission distance.
Depending on the voltage level and wiring method, in the power industry, motors of 90kw typically use YJV3×95mm2 cables, 75kw motors use YJV3×70mm2 cables, and 55kw motors use YJV3×50mm2 cables
When selecting cables for motors of three different power levels, it is also necessary to specify the motor’s starting conditions, such as direct start or soft start； The additional length of the motor cable also plays a significant role ； Additionally, it would be better if some starting parameters of the motor could be provided. Of course, if a simple design is adopted without taking into account other factors or relevant special specifications, and the selection is based on normal voltage drop, the cables suitable for the three types of motors would be as follows: for 90kw motors, YJV3×120mm2+1*70mm2 or 2*(YJV3×50mm2+1*25mm2) cables; for 75kw motors, YJV3×95mm2+1*50mm2 cables; and for 55kw motors, YJV3×70mm2+1*35mm2 cables