ABB releases new generation induction motor

AMI 5800 NEMA designed for demanding applications

ABB said its new generation AMI 5800 NEMA modular induction motor offers exceptional energy efficiency and reliability in demanding applications.

Designed for projects in a range of industries including oil & gas and power generation, the motor is rated for a power output of up to 1750 HP and offers a high degree of modularity and customization to suit both new build and upgrade projects, the company said.

A key feature of the motor is a high-strength welded steel frame typically found only in motors with larger frame sizes. This lowers stress on the motor while mitigating vibrations and resonance to ensure reliable operation in harsh conditions with a design life of 25 years or 20,000 starts, the company said.

ABB said its new AMI 5800 induction motor features innovative modular mechanical construction and flexible electrical designs. (Image: ABB)

A further important advantage of the AMI 5800 is a shorter bearing to bearing span compared with previous models. This feature improves performance at high speeds and enables the motor to be used as a simple drop-in replacement to upgrade existing equipment.

“We have engineered the AMI 5800 motor to meet customer requirements for high energy efficiency and reliability as well as sustainable manufacture and use,” said Sam Patrick, ABB Product Manager Large Motors & Generators. “Its modular design in terms of cooling methods, bearings, shaft extensions and terminal boxes also provides the flexibility to match the North American installed base. That makes the AMI 5800 ideally suited for both upgrading existing installations and next generation designs no matter how harsh the environment it will be operating in.”

The majority of regular AMI 5800 designs not only meet but exceed North American standards for energy efficiency. Further customization will allow some models to operate above the IE4 equivalent level of energy efficiency while meeting NEMA electrical performance standards.

The new motor is configured for optimal airflow, meaning that it will run as cool as possible, whether in an open-air installation or completely enclosed with a cooler. The time-tested MICADUR insulation system makes the motor suitable for starting high inertia loads direct online (DOL) while it is also an ideal partner for variable speed drives (VSDs).

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