Starters for synchronous and asynchronous motors
AEG program covers three different starter systems for electric motors.
Electronic soft starter with thyristors up to 4 MVA motor output
Starting transformers for synchronous an asynchronous motors up to 25 MW
Liquid starters
AEG electronic soft starter protects your motors and the driven machine by way of a soft acceleration control. It avoids the typical starting problems like high currents and high wear and tear. These products are available for line voltages of 400, 500 and 690V up to 3000A. The soft starters are mounted into the motor feeders. Typical applications are all non speed-controlled drives as conveyors, compressors, coolers and mixers, fans, mills, pumps and centrifuges.
The starting devices with starting transformers for medium voltages up to 13,8 kV are designed according to the three breaker method of Korndorfer. The supply covers a complete unit with transformer, vacuum breakers (star point and bridging contactors) plus protections.
Converters for DC motors
AEG supply digitally controlled CD converters for drives in one- and four quadrant operation, for other supply and filed excitation control with constant output in this range if desired. The field weakening reduces the torque with increased speed.
Inverter for AC motors in low and medium voltage
AEG design and offer all necessary inverters for new plants and revamping.
BL-Motor- Inverter with constant current intermediate circuits for synchronous motors
The BL-drive is especially suitable for large driven units with only one direction, e.g. pumps, fans and compressors. It is also in use as starting inverter in power stations.
Modernizing and backfitting
AEG avail of special experience in modernizing drives in the following fields:
Revamping of inverters for speed controls of pumps and fans for economizing energy and reduction of losses in power stations and other industrial plants
Modernizing of DC drives in steel plants or mines.