High-efficiency 3-phase induction motors for variable speed control
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High-efficiency 3-phase induction motors for variable speed control 0,75 to 132 kW

Guaranteed variable speed performance Leroy-Somer is expanding its induction motor offer with a range specially adapted for variable speed. Combined with any type of frequency inverter, the LSMV offers solutions adapted to the industrial environment by producing electrical performance with IE2 efficiency level and mechanical performance by guaranteeing constant torque over a wide operating range without forced ventilation and without derating. Interchangeability The LSMVmotorretainsthe IEC60072-1 dimensions (frame size, mounting distance and shaft diameter) while an induction motor designed...

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High-efficiency 3-phase induction motors for variable speed control The complete motor reference described below will enable you to order the desired equipment. The selection method consists of following the terms in the designation. Series designation Housing designation and manufacturer code Rated power Range/ Efficiency class Mains voltage Mains frequency 6 LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d

Q Housing with cooling fins Aluminium alloy -with integral or screw-on feet, or without feet - die-cast for frame size < 180 - gravity die-cast for frame size £ 200 • 4 or 6 fixing holes for housings with feet * lifting rings for frame size £ 100 - earth terminal with an optional jumper screw LSMV high-efficiency induction motors for variable speed control - 4981 en-2017.09/d 7

LSMV High-efficiency 3-phase induction motors for variable speed control Selection Choice of application type In principle, there are three typical types of load. It is essential to determine the speed range and the application torque (or power) in order to select the drive system: CENTRIFUGAL MACHINES The torque varies as the square of the speed (or cube of the power). The torque required for acceleration is low (about 20% of rated torque). The starting torque is low. * Sizing: depends on the power or torque at maximum speed • Drive selected for normal duty Typical applications:...

LSMV High-efficiency 3-phase induction motors for variable speed control Selection Choice of number of poles, optional features and brake NUMBER OF POLES The number of poles is one of the main criteria. In fact, as can be seen in the graph opposite, the torque is distributed differently depending on the number of motor poles used. Therefore, for use only at low speed, a 6-pole motor should be chosen. Conversely, for overspeed operation the 2-pole motor should be selected. OPERATING EXTENSIONS Depending on the applications and speed controllers, certain accessories are needed: Forced...

LSMV High-efficiency 3-phase induction motors for variable speed control Selection Choice of motor Number of Motor Rated Rated poles type power torque DTI 05 = Temperature rise F curve DT80 = Temperature rise B curve Tnom = Rated torque curve 2.3 A = Current on drive at DTI 05 2.0 A = Current on drive at DT80 1.8 A = Current on drive at rated torque To guarantee the LSMV motor performance, the drive rating should be compatible with the current of the selected curve. All the performance curves have been carried out with a self-cooled LSMV motor and a drive supplied on a 400...

LSMV High-efficiency 3-phase induction motors for variable speed control Performance Load capacity of LSMV motors on a drive LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d 11

LSMV High-efficiency 3-phase induction motors for variable speed control Performance Load capacity of LSMV motors on a drive 12 LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d

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LSMV High-efficiency 3-phase induction motors for variable speed control Performance Load capacity of LSMV motors on a drive 14 LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d

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LSMV High-efficiency 3-phase induction motors for variable speed control Performance Load capacity of LSMV motors on a drive 16 LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d

LSMV High-efficiency 3-phase induction motors for variable speed control Performance Load capacity of LSMV motors on a drive LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d 17

LSMV High-efficiency 3-phase induction motors for variable speed control Performance Load capacity of LSMV motors on a drive 18 LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d

LSMV High-efficiency 3-phase induction motors for variable speed control Performance Load capacity of LSMV motors on a drive LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d 19

LSMV High-efficiency 3-phase induction motors for variable speed control Performance Load capacity of LSMV motors on a drive 20 LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d

LSMV High-efficiency 3-phase induction motors for variable speed control Performance Load capacity of LSMV motors on a drive LSMV high-efficiency induction motors forvariable speed control - 4981 en-2017.09/d 21

LSMV High-efficiency 3-phase induction motors for variable speed control Performance Selection tables for motors operating on the mains 22 LSMV high-efficiency induction motors for variable speed control - 4981 en-2017.09/d