Marine propulsion induction motors up to 35,000 hp, up to 13.8 kV (three-phase and multiphase)
For the marine fleet the company produces large-power induction propulsion motors for ship electric propulsion systems powered by frequency converters, as well as auxiliary motors and drives.
- 3-phase windings
- up to 1000 V: 500–5000 hp; 2400–4160 V: 1000–14,000 hp; 6000–13,800 V: 2000–26,000 hp
- Multiphase windings
- up to 1000 V: 500–8000 hp; 2400–4160 V: 1000–20,000 hp; 6000–13,800 V: 2000–35,000 hp
- Speed
- 100–1800 rpm
- Cooling
- incl. TEWAC (air–water, fresh or sea water)
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
For the marine fleet the company produces large-power induction propulsion motors for ship electric propulsion systems powered by frequency converters, as well as auxiliary motors and drives. Propulsion motors are made with either three-phase or multiphase windings; multiphase designs allow higher powers and increase the fault tolerance of the electric propulsion system. Standard capabilities according to the brochure 'Marine Solutions – Induction': three-phase windings: up to 1000 V, 500–5000 hp; 2400–4160 V, 1000–14,000 hp; 6000–13,800 V, 2000–26,000 hp. Multiphase windings: up to 1000 V, 500–8000 hp; 2400–4160 V, 1000–20,000 hp; 6000–13,800 V, 2000–35,000 hp. Speed in all cases is 100–1800 rpm. Other combinations of voltage, power and speed are possible. For marine conditions several cooling systems are offered. The most common is the closed air–water system (TEWAC): a separate ventilation unit on the top or side of the motor, with a heat exchanger and its own fans, forms a closed circuit independent of the surrounding environment. The heat exchanger works on fresh or sea water and is usually fitted with a control valve that regulates the water flow according to the air temperature in the motor, to prevent condensation. Versions with air intake from another compartment or from the engine room are also possible. Vertical marine motors are made with the same technologies and insulation as horizontal ones. For the ship's auxiliary systems the company supplies low-voltage motors of 1–800 hp for fans, pumps and compressors that meet ABS and IEEE 45 requirements: totally enclosed fan-cooled design, premium efficiency, service factor 1.15, class F insulation with class B temperature rise, two-component epoxy coating, stainless steel parts, noise below 85 dBA at 1 m, and INPRO seals. Low-voltage frequency converters of 5–500 hp (3–373 kW) built to marine rules are also supplied. Large machines are manufactured and tested at the plant in Round Rock (Texas, USA), where large DC motors have been produced since 1976, induction motors since 1977 and synchronous motors since 1978.
Technical specifications
| 3-phase windings | up to 1000 V: 500–5000 hp; 2400–4160 V: 1000–14,000 hp; 6000–13,800 V: 2000–26,000 hp |
|---|---|
| Multiphase windings | up to 1000 V: 500–8000 hp; 2400–4160 V: 1000–20,000 hp; 6000–13,800 V: 2000–35,000 hp |
| Speed | 100–1800 rpm |
| Cooling | incl. TEWAC (air–water, fresh or sea water) |
| Design | horizontal and vertical |
| Auxiliary LV motors | 1–800 hp, ABS, IEEE 45 |
Request a price and lead time
Marine propulsion induction motors up to 35,000 hp, up to 13.8 kV (three-phase and multiphase). We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
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