Motors & Starters

AEG starting systems are used to avoid typical starting problems such as high current surges and high wear. AEG motors are available for mains voltages of 400, 500 and 690 V up to approx. 3000 A. The soft starters are looped into the motor connections. Typical areas of application are all non-speed-controlled drives, for example for conveyor belts, compressors, cooling systems and mixers, fans, mills, pumps and centrifuges. The starting devices with starting transformer for medium voltage up to 13.8 kV are designed according to “Korndorfer” three-switch method. The scope of delivery includes a complete unit with transformer, vacuum switches (neutral point and bypass contactor) and protective devices.

Our starters are supplied independently of the motor and switchgear manufacturers. They can be installed directly next to the motor or in the switchgear house. The transformers are supplied either as dry-type transformers or with oil cooling. For the design, we require a speed/torque curve, information on the motor current for direct connection and the mass moments of inertia. On request, we can also design low-cost liquid starters for your systems.

For armature voltage-dependent field control with constant power, AEG offers digital GS power converters in single and four-quadrant operation for armature supply and field excitation on request. In the field weakening range, the torque decreases with increasing speed.

We design and offer all necessary inverters for new plants and revampings.

AEG IE modernizes not only AEG power converters, but also used products from other manufacturers in Western and Eastern Europe.  AEG IE integrates parts of the systems that can still be used into the new solution. The modernization of old medium and high power DC drives is often of great economic interest. These are often drives in rolling mills, cement works, conveyors and crane systems. The new, fully digital information electronics can also be used for very dynamic drives. Existing DC motors can be inspected and overhauled if necessary. Our motor factory can supply new motors if required.

When modernizing power converters, it sometimes makes sense to continue using the thyristor power components. In such cases, we supply a customer-specific interface with the new digital controller to adapt to the given situation in the power section. The new control system has connections to common bus systems (Profibus-DP, CAN) for communication with the higher-level automation level. The new control electronics have a flexibly combinable drive structure with a range of technology modules, hierarchical controls and a fault memory.

If new power units are required, we can make appropriate offers.