Interroll DP 0080, User Manual

Page: 33 / 40

Version 1.2 (08/2022) en
Translation of original operating instructions 33 of 40
Appendix
11 Appendix
11.1 List of abbreviations
Electrical data
P
N
in kW Rated output in kilowatt
np Number of poles
n
N
in 1/min. Rated speed of rotor in revolutions per minute fN in Hz
f
N
in Hz Rated frequency in Hz
U
N
in V Rated voltage in volt
I
N
in A Rated current in amperes
I
0
in A Rated open-circuit current in amperes
I
max
in A Maximum current in amperes
cos φ Power factor
η
Efficiency
J
R
in kgcm
2
Rotor moment of inertia
I
S
/I
N
Ratio of startup current to rated current
M
S
/M
N
Ratio of starting torque to rated torque
M
P
/M
N
Ratio of pull-up torque to rated torque
M
B
/M
N
Ratio of pull-out torque to rated torque
M
N
in Nm Rated torque of rotor in Newton meters
M
0
in Nm Stalled torque in Newton meters
M
max
in Nm Maximum torque in Newton meters
R
M
in Ω Phase resistance in ohms
R
A
in Ω Phase resistance of auxiliary winding in ohms
L
sd
in mH Inductance of d-axles in millihenry
L
sq
in mH Inductance of q-axles in millihenry
L
sm
in mH Averaged inductance in Millihenry
k
e
in V/krpm Induced motor voltage
T
e
in ms Electrical time constant in milliseconds
k
TN
in Nm/A Torque constant in Newton meter per ampere
C
r
in µF Run capacitor (1~) / Steinmetz capacitor (3~) in microfarad