Novel drive-motor package suits fans and pumps
A
Lafert Electric Motors product story
Edited by the Engineeringtalk editorial team
Mar 8, 2004
AEG Lafert Electric Motors is launching a new integrated motor/drive package, named the Concert-Drive, aimed at fan and pump applications.
AEG Lafert Electric Motors is launching a new integrated motor/drive package, named the Concert-Drive.
The new product takes the latest inverter technology from a development partnership with Danfos and combines it with AEG's knowledge of permanent magnet designs to produce a cost-effective and simple drive solution.
Aimed, primarily, at fan and pump manufacturers, the Concert-Drive offers a tailored solution for the OEM who may find the integral motors available on the market today too inflexible or complicated for his application.
Because the Concert-Drive is not designed to be a general-purpose process drive package but a tailored application drive, it provides the functionality that the manufacturer requires and nothing more.
This cuts out "gimmicks" and consequent costs, narrowing the gap on price between the alternative of a separate drive and motor.
Currently the range available covers 0.75 - 2.2kW in a single phase supply of 230V-50Hz but powers up to 4kW are in development.
Both motor and drive are to 1P55 specification in its TEFC design.
Utilising a permanent magnet rotor design, the 2.2kW motor is produced in an IEC 80 frame offering a more compact design than its AC induction motor counterpart which would normally be available in the IEC 100 size, two frame sizes larger.
Also, efficiency levels have been achieved that are higher than the CEMEP eff1 levels for conventional induction motors.
High speed options can also be an advantage.
Offering speeds up to 12,000rev/min, the Concert-Drive gives the pump and fan manufacturer more options in their own designs.
The Concert-Drive is available with the usual mechanical flexibility from AEG.
Many flange and shaft configurations can be supplied to fit most close-coupled requirements the manufacturer may have.
Another option is to use the same product, but without employing a speed control card, to produce a variable electrical input single phase motor covering the supply ranges 100-240V, 50/60Hz.
This option has the advantage of offering better starting torque characteristics than its conventional AC motor counterpart.
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