Product category:
Motors and Variable speed drives
News Release from: ABB Automation Tech (Drives and Motors) | Subject: AMI series induction motors
Edited by the Processingtalk Editorial
Team on 28 August 2006
Modular induction motors to suit any
application
The new AMI series induction motors have a modular construction, enabling tailoring to harsh environments in industries such as oil and gas exploration, chemical manufacturing and metals processing
The new AMI series induction motors from ABB, ranging from 500 to 11 000 kW, has a modular construction, enabling tailoring to specific applications, including the harsh environments in industries such as oil and gas exploration, chemical manufacturing and metals processing The motors are engineered and constructed using a series of modular building blocks to provide a complete range of enclosures and cooling arrangements
This article was originally published on Processingtalk on 6 Aug 2003 at 8.00am (UK)
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Data for over 500 motors now available online
Motor performance curves, data sheets and drawings for low voltage AC motors, from 0.055 to 710 kW, are now available from the ABB website: data for more than 500 motors to be downloaded or viewed
This enables each AMI series motor to be delivered at a cost typical of off-the-shelf units, without compromising the suitability of the motor for each application or paying for unnecessary features.
Available options include air-to-water and air-to-air cooling, as well as a weather-protected version.
Protection classes range from IP24W to IP56.
Further reading
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A new range of standard high voltage induction motors, ready for delivery within days, has been launched by ABB: lower priced than engineered motors, these are ideal for OEMs needing standard product
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Aiming to save downtime costs of up to GBP10,000 per hour, Imerys Minerals in Cornwall has entered an agreement with ABB to supply motors and drives to its UK plants
The AMI series squeezes an extra 10% of power from each frame when compared to its predecessors, enabling users to opt for smaller, lighter motors to fit a given duty.
This is an obvious advantage wherever space is tight.
In addition, standard models keep noise levels below 82 dB(A), with some options reducing noise even further.
This enables the motors to deliver a safer, more comfortable working environment for operators.
The basic framework of the new motors (IEC frames 560, 630 and 710) provides a proven platform, with new features developed using the ABB broad experience and a systematic process of design and review.
Low vibration has been a design priority for the AMI series.
Less vibration reduces wear and tear, prolonging the life of the motor and surrounding equipment.
A 2-pole stiff shaft rotor design is available for motors controlled by variable speed drives, which ensures that the motor can operate at any and all speeds within its 0 - 4000rpm range; because the first critical speed (the speed at which a motor starts to resonate) is higher than the maximum running speed of the motor.
In addition, low levels of vibration in the bearing housing enable AMI motors to meet the latest IEC and NEMA standards, as well as API and most similar specifications.
The motors have form wound windings using the well-established ABB Micadur Compact Industry Insulation System insulation class F (155 degrees C).
The Micadur system involves insulating the motor windings and connections with Mica-based tape.
With the windings in place, the whole stator is impregnated with a high-temperature varnish using a vacuum pressure impregnation process.
This provides effective insulation that boosts the reliability and life of the motor.
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