ABB synchronous motors help our customers to cut operating, maintenance and energy costs while lowering environmental impact. — Synchronous motors High performance in all applications Synchronous motors High performance in all application

We provide motors and generators, services and expertise to save energy and improve customers' processes over the total life cycle of our products, and beyond.

Synchronous motors from the world’s leading supplier Efficiency and reliability for a wide range of applications Fixed and variable speed motors Proven reliability Effective cooling Bearings and accessories Robust frame Excitation Proven insulation system Testing Life cycle services and support Total product offering

— Synchronous motors from the world’s leading supplier High performance in all applications Designed to provide outstanding reliability and efficiency, ABB synchronous motors help our customers to cut operating, maintenance and energy costs while lowering environmental impact. ABB is the market’s leading supplier of synchronous motors and generators. All over the world our synchronous motors are delivering superior performance in industrial processes, the marine and offshore industries, utilities, and specialized applications. We have been designing and manufacturing AC motors for mission-critical...

— Efficiency and reliability for a wide range of applications Motors that match your needs ABB synchronous motors deliver efficient and reliable operation in a wide range of applications. We have a strong track record in tailoring motors to match customer needs across different industries. Examples of industries and applications where our motors are operating include: • Oil, gas and petrochemical: compressors, pumps, fans and extruders • Marine and offshore: variable speed motors in azimuthing propulsors and shaft line applications • Metals and minerals: rolling mills, hoists, processing lines,...

— Fixed and variable speed motors Tailored to application requirements ABB motor designs are always optimized for the specific application, ensuring the correct starting method is used. The starting method is selected primarily on the basis of customer requirements, network capability and process demands. Fixed speed motors Fixed speed synchronous motors are typically used in applications like compressors, fans, pumps, wood grinders and refiners. The most commonly used starting methods for fixed speed synchronous motors are direct-online (DOL), reactor, autotransformer, load commutated inverter...

Output ranges of ABB synchronous motors (from 1 to 75 MW, 1 to 15 kV).

— Proven reliability Increased productivity for your operations ABB synchronous motors are renowned for their proven quality and reliability. Robust design ensures reliability through cool operating temperatures and low vibration. Rotor The rotor plays a crucial part in achieving the best possible electrical and mechanical performance. minimum distance between bearings ensure that the motor operates below the first critical speed, keeping vibration levels low. Higher speed motors (four and six poles) have solid rotors with integrated poles made from a one-piece steel forging. A solid pole plate...

not need an excitation system. When necessary, high pole numbers can be used in low speed applications. Shaft The shaft is manufactured from forged or rolled steel and machined to exact specifications. The shaft ends can be cylindrical, conical or flanged. Also two shaft ends can be provided (double end drive). Rotor windings The rotor windings consist of either preformed enameled rectangular copper wire or flat copper. Proper supports between adjacent windings ensure stability up to the rated overspeed. The rotor windings are made to match (at the minimum) the insulation class of the stator....

— Effective cooling The wide range of available cooling methods ensures that you can select the optimum system to match the motor’s operating and environmental conditions. The three most commonly used cooling methods are air-to-water, air-to-air and open air. Whichever method is chosen, it will provide effective cooling of the complete motor. Air-to-water closed circuit cooling The cooling air circulates in a closed circuit through the active parts of the motor and then through an air-to-water heat exchanger. This method is especially recommended if cooling water is available nearby. It is an...

The choice of optimal bearing arrangement and type is influenced by a number of factors. These include customer requirements and operating conditions like ambient temperature, air cleanliness, vibration levels and possible shocks affecting the bearings. Also radial and axial loads, rotation speed, coupling type and the type of driven equipment should be taken into account. ABB synchronous motors use quality sleeve bearings that withstand high levels of vibration and offer great performance. The bearings provide the same outstanding reliability under static and dynamic (radial and axial) loads....

— Robust frame Low vibration Robust frame ensures great stability and optimum dynamic behavior. For maximum flexibility, ABB synchronous motors are designed for horizontal, inclined or vertical mounting. Vertical mounting is available for motors with eight or more poles. The robust frame transfers dynamic and static stresses directly to the foundation, reducing vibration and contributing to the overall excellent performance of the motor. We can supply motors – even up to the largest sizes and outputs – as complete, ready-to-install units. This means that no further on-site assembly is needed,...

Higher speed motors (four and six poles) use a compact, brushless exciter unit mounted on the rotor shaft outboard of the bearings. No independent support or alignment is required. The high level of field forcing delivers improved system performance, which increases the production of reactive power and is beneficial when faults arise in the supply network. Lower speed motors (eight or more poles) typically have a brushless exciter unit mounted inside the motor enclosure. For fixed speed applications and variable speed applications with less demanding dynamic control requirements, a brushless...