Two-Speed Ship Motor for Positioning

MENZEL ELEKTROMOTOREN HAS manufactured a ship motor with two separate windings for different speeds. The motor was commissioned by a petroleum company and is to drive an azimuth thruster. The type MEBKSW630-8/10 three-phase squirrelcage motor is certified by Lloyd's Register.

The modular series, which features IP55 ingress protection and IC 81W cooling (air-to-water heat exchanger) by default, enables flexible, cost-efficient customisation while at the same time offering a tested and proven design. The ship motor was constructed for vertical mounting. The customer attached great importance to smooth commissioning through interchangeability with the previous motor.

At a nominal voltage of 6000V, the 8- and 10-pole rotor windings are designed for nominal outputs of 2000kW and 800kW and speeds of 895rpm and 713rpm, respectively. The size 500 squirrel-cage motor weighs 12.5 tons. The motor series is also characterised by high power density, high efficiency, high overload capacity and high-durability bearing designs.

Menzel also offers explosion-proof motor designs and motors with higher IP protection classes for marine and petrochemical applications.

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