tt-electric Subheading?

Mill Duty Motors up to 187kW

TT Electric Mill Duty motors conform to A.I.S.E. No. 1-1991 in regards to output and physical dimensions, and are therefore interchangeable with any other brand of A.I.S.E. standard motors of the same size.

The Mill Duty motors are suitable for operation with the latest generation of thyristor convertors. The fully laminated stator design of the motors permits a very high rate of change of current, meeting the steel mill requirements of high dynamic response and repetitive overload capability.

The motors are fully compensated, offering the benefits of enhanced commutation margin in a wide constant power speed range, and good stability independently of motor load. This design, however, does not allow for a split stator frame, as stipulated by the A.I.S.E standard. The shaft of these motors is easily removed and replaced, and can be offered with taper extensions 1:9.6 or 1:10.

The 800 series is available in FULL SPEED, HALF SPEED and QUARTER SPEED options, in order to meet the specific requirements of steel industry. As standard, the Mill Duty motors are mutually convertible from enclosure type Totally Enclosed Non-Ventilated (TENV) to Totally Enclosed Force Ventilated (TEFV). Other enclosure types, e g Drip Proof Blower Ventilated or Drip Proof Pipe Ventilated, are available on request.

The ruggedness and reliability of the motors ensure safe operation with long life expectancy. The LAKC Mill Duty motors can also be used in other heavy duty applications.

Please contact us if you need any further information about T-T Electric’s Mill Duty DC Motor

Download Mill Duty DC Motors Catalogue

LAKC Compensated DC Motors Frames 355 – 560 up to 2000kW

Design and characteristics:
The LAKC motors are designed for use in heavy industry meeting the tough requirements for high realiability, low maintenance costs, good commutation, long brush life and low energy consumption.

• Fully laminated stator yoke, main poles and interpoles.
• Pole face compensation winding to enhance performance in overload conditions.
• Excellent commutation due to well proportioned ratio between armature length and diameter with low bar to bar voltage.
• High thermal time constant.
• Class H insulation.
• Armatures wound with high quality materials.
• Vacuum impregnated armature windings with 100% fill resin for optimal reliability.
• Generously dimensioned shaft and bearings.
• End shields of square design with large openings to facilitate brush accessability for maintenance.
• Spigot at the non-drive end for mounting of tachometer, encoder etc.
•  Twin brushes.
• Advantages:

The fully laminated compensated LAKC d.c. motor ensures:

• High overload capacity with linear torque/current characteristic.
• High efficiency due to low field losses and well proportioned air gaps between armature and stator.
• Excellent commutation over the entire speed range.
• Long brush life.
• Low noise level.
• Class H insulation.
• Class F temperature rise.
• Excellent dynamic response, enhanced by superior transient commutation.
• Easy access to brushes and commutator.
• Custom built to meet individual

Download LAKC Motors ( Serie 355-560 ) catalogue

If you need any further information, please get in touch.

LAK4000 DC Motors Up to 250kW

To complete the output range, fully laminated, 2 pole, square frame DC motors are also available.

Basic design characteristics:

• Fully laminated stator, main poles and interpoles.
• Compact square frame design.
• Easy installation of accessories.
• Large openings in end shields for easy inspection.
• Stator windings of varnish insulated copper wire.
• Laminated armature core of high grade insulated electroplate.
• Large number of cooling ducts in armature provide excellent cooling.
• Scrambled armature laminations for low torque ripples.
• Armature windings of varnished copper designed for low commutating stresses and high mechanical strength.
• Armature is impregnated to ensure high degree of heat transfer.
• Brush holders with spring loaded pressure fingers.
• Prepared for a number of options and accessories ensuring high flexibility.
• Painting with excellent corrosion resistant properties.
• Conforms with IEC standards.
• Available as NEMA standard.

Download LAK 4000 DC Motors catalogue

If you require any further information, please get in touch.

LAK2000 DC Motors up to 20kW

Basic design characteristics:

• Fully laminated stator, main poles and interpoles.
• Low induced voltage due to well proportioned ratio between length and diameter of armature.
• Low bar to bar voltage ensures good commutation.
• Large thermal masses(copper and steel weight) give high thermal time constant.
• Well designed end frames and louvres ensure easy inspection and reduce noise.
• NDE spigots and stub shafts as standard to accept adaptors for all well known makes of tachometers and pulse generators.
• High efficiency through low field losses and well proportioned airgap between armature and stator.
• Minimal brush and commutator wear due to good commutation.
• 1-phase thyristor supply without external inductance saves price and space.
• Excellent short time overload characteristics which allow choice of smaller motor in many cases.
• Designed for high armature  voltages as standard.
• High mechanical and electrical flexibility.
• Painting with excellent corrosion resistant properties.
• Conforms with IEC, BS and VDE standards.
• Available according to NEMA.
• Available CSA approved.

Download LAK 2000 DC Motors catalogue

If you would like any further information on T-T Electric’s LAK 2000’s Motors, please contact us

DMP DC Motors up to 250kW

Basic design characteristics:

• Fully laminated stator, main poles and interpoles.
• Compact square frame design.
• Easy installation of accessories.
• Large openings in end shields for easy inspection.
• Stator windings of varnish insulated copper wire.
• Laminated armature core of high grade insulated electroplate.
• Large number of cooling ducts in armature provide excellent cooling.
• Scrambled armature laminations for low torque ripples.
• Armature windings of varnished copper designed forlow commutating stresses and high mechanical strength.
• Armature is impregnated to ensure high degree of heat transfer.
• Brush holders with springloaded pressure fingers.
• Prepared for a number of options and accessories ensuring high flexibility.
• Painting with excellent corrosion resistant properties.
• Conforms with IEC standards.
• Available as NEMA standard.
• CSA approved.

Download DMP Catalogue

If you require any further help or assistance, please contact us.

AC AMP Motors up to 187kW

T-T ELECTRIC proposes a series of square frame AC motors for variable speed drive applications. This asynchronous motor has been developed and designed to achieve the same dynamic performance as our DC motors series.

The AC square motor complies with IEC600 34 standards and responds to the requirements for most industrial applications. Its flexible square frame design facilitates its integration into all types of machinery.

If you would like more information on T-T Electric’s AC AMP Motors, please contact us.

Download AMP AC Square Motors Catalogue