mechanical variable speed drives speed range

mechanical variable speed drives design having 0.37 KW to 2,2 KW capacity & speed range we can give is from 0.1 to 500 RPM having ratios 5:1 or max.6:1. Our this compact Mechanical variable speed drive is working on constant HP basis. The drive can be used with Flame proof motors also for using in hazardous area & speed of the Mechanical variable speed drive can be varied through a know provided on the drive itself & by moving knob you Can get required speed variation steplessly. The assembly is made very compact & we can give Helical gearboxes, Mechanical variable speed drives & electric motors integrally fitted in line design. The drive is maintenance free & provided with life time lubrication.

Variable speed drives

The regenerative braking function is of great importance to the mechanical variable speed drives, which can effectively improve the efficiency of the system and realize the energy-saving purpose. Through the analysis and discussion of various regenerative circuits of variable speed drives, this paper provides a reference for practical application selection. The regenerative circuit based on the energy storage device and the common dc bus is suitable for certain applications. Based on the regeneration of the power electronic converter circuit, the current use very much, which USES the regeneration of the thyristor circuit, low cost, easy to achieve high power level, but because of thyristor is half controlled device, must consider the problem of the commutation of the need to take measures to ensure the reliable commutation, they inject a certain amount of harmonic current to the grid at the same time; Regeneration circuit type based on full controlled devices, although the cost is relatively high, but performance is good, can easily realize two-way flow of energy, and can significantly improve the power quality of grid side, therefore has good application prospect. Three - level dual PWM converter is also an optimal scheme for the application of regenerative circuits in multi-level topologies.

Mechanical variable speed drives

The speed of a mechanical variable speed drives controls the machine, pump, blower, agitator, and conveyer connected to it. Under normal circumstances, the motor running at a fixed speed, and manufacturing method of the motor speed depends on the power supply frequency, mechanical variable speed drives before was about to drive motor effectively change the power frequency, let the motor run at different speeds. The drives you can change any motor driven machines and equipment running speed, speed changes to the actual needs from the nature, can be finished by automatic or manual operation, so that the equipment running speed to meet the changing conditions.