Capacitors For Power Factor Improvement; 3Rw44 In Generator Operation (With 3-Phase Asynchronous Motor); Electrical Connection; Control And Auxiliary Current Connection - Siemens SIRIUS 3RW44 User Manual

Installation, Connection and Branch Layout
3.4

Capacitors for Power Factor Improvement

3.5 3RW44 in Generator Operation (with 3-Phase Asynchronous
Motor)
3.6

Electrical Connection

3.6.1 Control and Auxiliary Current Connection

3-10
Caution
Capacitors must not be connected to the output terminals of the
soft starter. If this occurs, the soft starter will be damaged.
Active filters, e.g. for reactive power compensation, must not be
operated in parallel while the motor control device is in operation.
If capacitors for reactive power compensation are used, they must be connected
on the line side of the device. If a contactor disconnector or a main contactor is
used in combination with the electronic soft starter, the capacitors must be
disconnected from the soft starter when the contactor is open.
The 3RW44 soft starters are suitable for generator operation.
Note
Depending on the operating speed, connect the generator to the system while in
the subsynchronous range (motor operation) and slowly move the machine into
the supersynchronous range. Connecting the generator directly in the
supersynchronous range may cause soft starter faults.
The SIRIUS 3RW44 soft starter is supplied with two different connection
systems:
• Screw-type terminals
• Spring-loaded terminals
Two control voltage versions are available:
• 115 V AC
• 230 V AC
SIRIUS 3RW44 manual
GWA 4NEB 535 2195-02 DS 06