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RU Motor Efficiency Calculator
New motor
Old motor
Results
| Indicator | New | Old |
|---|---|---|
| Apparent power S [kVA] | 14.19 | 14.11 |
| Reactive power Q [kVAr] | 7.47 | 6.43 |
| Active power P [kW] | 12.06 | 12.56 |
| Energy consumption [kWh] | 12.06 | 12.56 |
Speed change [%]
-0.17
Reactive power reduction [%]
-16.19
Active power savings [%]
3.95
Energy savings
Annual operating time [h]
7300
Annual savings [kWh]
3618
Annual costs (new) [€]
19370.61
Annual costs (old) [€]
20166.67
Savings in money [€]
796.05
Power P [kW] – the mechanical work required.
Speed V [rpm] – motor speed under load.
cosφ – how efficiently electrical energy is used (the closer to 1, the fewer "parasitic" losses).
Efficiency η [%] – the share of energy converted into useful work rather than heat.
Working days per week – how many days the motor actually runs (taking into account weekends / idle time).