| Power Power is the ability to deliver a certain performance in a certain time. Speed (V) and load (F) combined, can be expressed in power (P in kW) by a mathematical formula: P = (V x F) : 6120 PinkW, Vinmeters/min., F in kg (1 kg ~ 10 Newton), 6120 is constant. The theoretical value can easily be calculated, but in practice we need to install sufficient power to overcome efficiency losses. Cable on sheaves, cable on drum, gearbox, motor electric or hydraulic and the supply lines all create losses. To overcome these losses we need to install extra power. In the power chart we already accounted for an average loss, so the power you find in the graph is roughly the installed power. |