Introduction
SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04
1-3
Figure 1-2:Typical starting torque behavior of a 3-phase asynchronous motor
Solution The current and torque behavior during start-up can be optimally adapted to the
requirement of the application using the SIRIUS 3RW44 electronic soft starter.
002_Drehmomentkurven ohne Softstarter.wmf
. .
M
Direct start
Motor
torque
M
Motor
M
Nom
M
Load
e.g. pump
M
Acceleration
n
Nom
Motor speed
n
M
stall
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