The correct choice of power is the basis for reliable and economical engine operation. Both under and over power are equally harmful. Let's look at how to choose an engine based on power.
What are the consequences of errors
| Error | Consequence |
|---|---|
| Power is too low | Overload, overheating, combustion |
| Power optimal | Reliable economical operation |
| Power is too high | Low efficiency and cos φ, overpayment |
How to choose
- Determine the required power of the mechanism (pump, fan, drive).
- Add a reasonable margin (usually 10–25%).
- Take into account the operating mode - frequent starts require a reserve.
- Check the speed and installation design.
A simple method for replacement
If the old engine coped with the task and did not overheat, focus on its power and speed. But if it constantly warmed up or turned off, the power was underestimated, it’s worth reconsidering the choice. When selecting a replacement engine all parameters are taken into account.
Not only power
It is important to remember: with one power, the torque depends on the speed. A low-speed engine produces more torque. Therefore, the speed is chosen according to the mechanism. If the engine does not pull the load, perhaps it is a matter of incorrect selection - this will be shown by diagnostics.
Do you need help selecting an engine based on power in Tashkent? Elektromotors engineers will select the best option - leave a request.