Motor Selection Based On Power-Speed And Torque-Speed Diagrams - Siemens SINAMICS S 1PH7 Configuration Manual

Figure 2-3
Example of the calculation of n
A specific power of P
The field weakening range should be 1 : 3.5.
Calculation of the required rated speed n
1PH7 induction motors (Machine tools)
Configuration Manual, (APH7W), 04/2009, 6SN1197-0AD72-0BP0

Motor selection based on power-speed and torque-speed diagrams

N
= 8 kW is required at n
max
2.3 Selecting and dimensioning induction motors
= 5250 rpm.
max
: 5250 / 3.5 rpm = 1500 rpm.
N
Configuration
47