The most visible energy savings are achieved by frequency regulation of the number of revolutions of asynchronous electric motors (frequency regulated pumps, fans and other drive motors). In well-regulated motor drives, the speed of rotation is exactly that the process requires and the consumption is minimal required.
The financial savings that are realized depend primarily on the number of revolutions and the price of electricity. In this example, the data are given starting from the rounded price of electricity in Serbia. Given that the price of electricity will inevitably rise in the future, the savings will be greater and greater …
|Motor/pump power in kW:|
|Speed reduction in percent:|
|Number of pumps:|
|Price of electrical energy per kWh:||€|