Rotors and high-speed electric machines

About company
Our company profile is design, manufacture, maintenance service and repair of high-speed electric machines.

WELMA 25

Вэлма 10

The product is a synchronous reversible electric machine with excitation from high-coercitivity permanent magnets. Rotor supports are hydrodynamic bearings. Bearing supports are cooled and lubricated with oil supplied from the oil system. The product is cooled by air.

WELMA 25 is designed for dual mode operation converting mechanical energy into electrical energy (in generator mode) and vice versa (in motor mode).

WELMA 25 main parameters and dimensions:

Rated power, kW 25
Number of phases 3
Rated phase voltage, V 220
Electrical efficiency (without rotor friction losses) at maximum power 96%
Maximum rotor speed, rpm 70 000
Overall dimensions (LxWxH), mm 340x220x260
Max. mass of electric motor, kg 35
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