Appendix A1: Motor Rotor Inertia, Us - ABB ACS800 Series Firmware Manual

Appendix A1: Motor Rotor Inertia, US

The following tables are an example of common Inverter Duty AC Motor Rotor
Inertia. The data presented is from Marathon Motors' Blue Max XRI Premium
Efficiency Motor Performance Series.
Horsepower
Base
Poles
RPM
4 1756
1
6 1140
2 3460
1.5
4 1730
6 1175
2 3460
2
4 1750
6 1175
2 3525
4 1760
3
6 1174
2 3505
4 1750
5
6 1170
2 3540
7.5 4 1770
6 1175
2 3535
10 4 1785
6 1176
2 3550
15 4 1775
6 1178
2 3537
20 4 1773
6 1174
NEMA FL Amps /
Frame 460 V
143T 1.5
145T 1.7
145T 1.9
145T 2.2
182T 2.2
145T 2.6
145T 3.0
184T 2.9
182T 3.8
182T 3.9
213T 4.4
184T 5.9
184T 6.1
215T 6.9
213T 8.9
213T 9.6
254T 9.9
215T 11.8
215T 12.5
256T 13.1
254T 17.5
254T 18.8
284T 20.4
256T 23.4
256T 24.1
286T 26.8
Appendix A1: Motor Rotor Inertia, US
189
FL Torque Inertia
2
(lbft) (lbft )
3.0 0.12
4.6 0.12
2.3 0.05
4.5 0.14
6.7 0.41
3.0 0.06
6.0 0.15
8.9 0.52
4.5 0.13
9.0 0.40
13.5 0.87
7.5 0.17
15.0 0.52
22.5 1.10
11.0 0.44
22.5 1.10
33.5 2.50
15.0 0.55
30.0 1.30
44.5 3.00
22.0 1.00
44.0 2.30
66.5 3.90
29.5 1.30
59.5 3.20
89.0 4.50