Installation, connection and feeder configuration
4.5 Generator operation with three-phase asynchronous motor
3RW44 soft starters
42 Manual, 03/2017, NEB535219502000/RS-AB/008
Generator operation with three-phase asynchronous motor
The 3RW44 soft starters are suitable for generator operation.
Depending on the operating speed, connect the generator to the system while in the
subsynchronous (motor) range and slowly move the machine into the supersynchronous
range. Connecting the generator directly in the supersynchronous range may cause soft
starter faults.
Electrical connection
4.6.1
Control and auxiliary circuit connection
The SIRIUS 3RW44 soft starter is supplied with two different connection systems:
● Screw connections
● Spring-loaded connections
Two control voltage versions are available:
● 115 V AC
● 230 V AC
All soft starters have busbar connections for the main circuit connection.
An additional box terminal for direct cable connection is supplied as standard with size
3RW44 2.
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