One of my friend's equipment is not capable enough. In view of economic considerations, I don't plan to buy the whole equipment with higher power, but want to change to a motor with higher power, hoping to achieve the most economical equipment upgrade.

When the question of the feasibility of this improvement plan came before me, I originally wanted to use the difference in motor specifications to give a simple answer, but after thinking about it, it seems that there are more than these questions. I am afraid that there are quite a lot of issues to consider when increasing the capacity of the equipment motor.

First of all, it is the difference in the size and specifications of the old and new motors.

The difference in motor power is largely accompanied by the difference in key appearance data such as elevation, foot size, motor volume, and journal. This requires the equipment to re-change the installation foundation, wheel alignment, etc. according to the specifications of the new motor.

Secondly, the control system also needs to increase capacity simultaneously.

The power of the motor is different, and the current must be different. If the motor is increased, the corresponding control system equipment must also be increased simultaneously, such as fuses, power switches, main controllers, protection devices, detection devices, power lines, etc. For some complex controlled equipment, its control parameters need to be readjusted.

Third, increasing the motor capacity will increase the burden on the power supply.

The increase of motor power will be accompanied by the increase of current, which will bring an additional burden to the power supply, and the capacity of the power supply should be recalculated.

In addition, the increase in motor power will increase the starting current, especially for direct-start motors. If the original system capacity is insufficient, the new motor may not be able to start.

Fourth, the increase in motor power will increase the burden on the mechanical transmission.

The increase of motor power and the enhancement of torque will bring greater impact to the original mechanical transmission device, such as the reduction box, etc. It is necessary to reselect the specifications of the mechanical transmission device according to the capacity of the newly installed motor.

In addition, the increase in motor power will also pose challenges to the supporting structure of the entire equipment. Greater torque will cause excessive fatigue of the mechanical structure, and cracks will appear in some rigid structures.

The 5th, the increase of motor power causes greater burden to foundation.

The increase in motor power is generally accompanied by the increase in volume and weight. Whether the original installation foundation can bear the increased weight needs to be recalculated.

Generally, the motors on the equipment are matched according to the process requirements and have been rigorously calculated. Therefore, it is generally not recommended to increase the power of the equipment motors casually. If you really feel that the equipment is not capable enough, you should buy a complete set of high-power equipment.