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Product catalog summary

Introduction
This document provides a comprehensive overview of Leroy-Somer's IMfinity® 3-phase induction motors, detailing their efficiency classes (IE2, IE3, IE4, and Non-IE) and construction types. These motors are designed to meet high efficiency standards and comply with European and US energy regulations.

Specifications
The motors range in frame size from 56 to 450 and have power ratings from 0.09 to 1250 kW. They are available in both variable and fixed speed configurations, with protection class IP55. The motors can be powered by mains or drives, and they comply with European and North American standards.

Efficiency Standards
All 2-, 4-, and 6-pole motors from 0.75 to 375 kW must comply with the European ErP directive, requiring IE2 class from 2011, and IE3 or IE2 with a speed drive from 2015 for 7.5 to 375 kW, and from 2017 for 0.75 to 375 kW.

Construction and Design
The motors feature cast iron housings with cooling fins, insulated low-carbon magnetic steel laminations for the stator and rotor, and electroplated copper. The rotor is dynamically balanced and can be pressure die-cast in aluminium or soldered in copper. Various construction features include mounting arrangements, mains connection, radial loads, cooling systems, and motor connections.

Operational Guidelines
Key operational parameters include duty cycle definitions, supply voltage, insulation class, starting times, power, torque, efficiency, power factor, and noise levels. The document also discusses operation with speed drives and starting methods.

Electrical and Mechanical Data
Detailed data is provided for different motor types, including aluminium and cast iron frames, with specifications for IE2, IE3, and IE4 efficiency classes. Tables include data on starting torque, maximum torque, starting intensity, moment of inertia, weight, and noise levels.

Installation and Maintenance
Guidelines for installation and maintenance include the position of lifting rings, permissible axial and radial loads, and optional features such as non-standard flanges and mechanical options. The document emphasizes the importance of using appropriate handling equipment for motors over 25 kg.

Energy Regulations
The document concludes with a section on global energy regulations, highlighting the requirements in major countries and providing appendices with additional technical information.

Standards and Approvals
Leroy-Somer motors comply with numerous international standards, ensuring product safety and energy efficiency. The CE mark is mandatory in the European Economic Community, while other marks like CSA and UL apply to North America. The EAC mark is required for Russia, Kazakhstan, and Belarus.

Protection Index (IP) and Environmental Conditions
The document details the protection index (IP) for electrical equipment enclosures, specifying protection against solid materials and liquids. It includes examples of IP ratings, such as IP55, which indicates protection against dust and water jets.

Environmental Limitations and Protection
Information on environmental limitations, such as temperature and humidity, is provided. The document discusses the influence of atmospheric pressure on motor performance and the need for special manufacturing under certain conditions.

Heaters and Surface Protection
The use of space heaters and alternative heating methods for motors in severe climatic conditions is explained. Surface protection is defined according to ISO 12944, with details on surface preparation and treatment for different materials.

Interference Suppression and Safety
The document addresses electromagnetic interference emission and immunity, noting that standard motor housings provide electromagnetic screening. It discusses the application of directives concerning electromagnetic compatibility (EMC), low voltage, and machinery.

Mountings and Positions
Various mounting positions for motors are described according to IEC standard 60034-7, including foot-mounted and flange-mounted configurations for different frame sizes and orientations.

Specifications and Calculations
The document outlines the formula for calculating the number of starts per hour for motors, considering complete starts, electrical braking operations, and pulses. It also details the calculation of derating, starting time, cumulative starting time, and energy dissipation during operation.

Efficiency and Regulations
The document discusses the efficiency classes of IMfinity® 3-phase induction motors, highlighting compliance with European regulations requiring IE3 motors or IE2 motors with a drive.

Applications and Drive Selection
Different types of load applications are described, including centrifugal machines, constant torque, and constant power applications. The document provides guidance on selecting the appropriate drive system based on the application type and load characteristics.

Motor and Inverter Combinations
Guidelines for choosing the right motor and inverter combination are provided, with examples of motor selections based on torque and speed requirements.

Variable Speed Drive Considerations
The document highlights the impact of using frequency inverters on motor temperature rise and efficiency. It recommends using PTC sensors for protection and discusses the need for forced ventilation in certain applications.

Insulation and Voltage Recommendations
The insulation system for LSES, FLSES, or PLSES motor series is described, with recommendations for handling voltage peaks and variations.

Specifications and Recommendations
High mains supply voltages, increased motor size, incorrectly earthed motor-drive systems, long cable lengths, and misalignment can amplify operational issues.

Protection Summary
Protection varies based on mains voltage, cable length, and frame size. For example, for ≤ 480 V and cable length < 20 m, standard winding protection is sufficient for all frame sizes.

Insulation System for Variable Speed Applications
Motors should be used with speed drives, and specific recommendations are provided for transient overloads, starting torque, and switching frequency.

Motor Selection and Operation
Motors can be used with or without Leroy-Somer frequency inverters. When not using Leroy-Somer inverters, motors may need to be derated by 10%.

Wiring and Installation Practices
Good wiring practices are crucial, including proper grounding and cable shielding. Specific guidelines are provided for cable types, sizes, and installation methods.

Noise and Vibration Levels
Noise emitted by rotating machines is measured in decibels, with specific filters used for different noise levels. Vibration levels are influenced by construction inaccuracies and require proper balancing.

Additional Installation Components
Optional components like RFI filters, line reactors, and motor chokes can be added to installations to reduce electromagnetic emissions and harmonics.

Vibration Measurement and Standards
The document discusses the measurement of vibration speed, which is the speed at which a machine moves from its static position, measured in mm/s.

Thermal Protection
Motors are protected by overcurrent relays and fuses to prevent non-transient overloads. For transient overloads or temperature monitoring, heat sensors like PTO, PTF, PTC, PT 100, and thermocouples are recommended.

Starting Methods for Induction Motors
The document outlines starting methods for cage induction motors, focusing on starting torque and current.

Braking Methods
The document outlines various braking methods including mechanical, regenerative, and deceleration brakes.

Braking Calculations
Formulas are provided for calculating braking current and torque.

Operation as Asynchronous Generators
Motors operate as asynchronous generators when the rotor speed exceeds synchronous speed.

Electrical and Mechanical Data
Information plates identify motor specifications, including compliance with European and North-American standards.

Standards and Compliance
The document details compliance with various standards such as CE, cURus, CSA, and NEMA Premium.

Conclusion
This technical document serves as a comprehensive guide for understanding the operation, braking, and compliance of IMfinity® 3-phase induction motors. It provides essential formulas and guidelines for optimizing motor performance and ensuring safety.

Catalog excerpts

IMfinity® 3-phase induction motors IE2 High efficiency & IE3 Premium efficiency and IE4 Super Premium efficiency motors Non IE for current or special use Variable speed and fixed speed Frame size 56 to 450 Power rating 0.09 to 1250 kW

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency This catalogue presents the induction motors of the IMfinity® generation, in all their efficiency classes and construction shapes. IMfinity® motors are designed to reach a very high efficiency, whether supplied directly through mains or controlled by a speed drive. Premium efficiency IMfinity® aluminium frame motors are designed to comply with European and US energy regulations. Many other countries in the world impose minimum efficiency levels for electric motors. Refer to the information presented at the end of the catalogue....

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Leroy-Somer - IMfinity® 3-phase induction motors - 5147 en - 2018.04 /

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency Contents DIMENSIONS Leroy-Somer - IMfinity® 3-phase induction motors - 5147 en - 2018.04 / h

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Leroy-Somer - IMfinity® 3-phase induction motors - 5147 en - 2018.04 / h

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Introduction In this catalogue, Leroy-Somer describes the IMfinity® new generation induction motors. These motors have been designed to incorporate the latest European standards, and can satisfy most of industry’s demands. They are par excellence the leading products in the Leroy-Somer range. Other motors, ranging in power from 0.045 to 2200 kW and special construction types, are included in the Leroy-Somer motor programme. NON IE EFFICIENCY IP 55 ALUMINIUM ON MAINS* HIGH EFFICIENCY IE2 IP55...

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Quality commitment Leroy-Somer's quality management system is based on: - Control of procedures right from the initial sales offering until delivery to the customer, including design, manufacturing start-up and production - A total quality policy based on making continuous progress in improving operational procedures, involving all departments in the company in order to give customer satisfaction as regards delivery times, conformity and cost - Indicators used to monitor procedure performance -...

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Directive and standards relating to motor efficiency There have been a number of changes to the standards and new standards created in recent years. They mainly concern motor efficiency and their scope includes measurement methods and motor classification. Regulations are gradually being implemented, both nationally and internationally, in many countries in order to promote the use of high-efficiency motors (Europe, USA, Canada, Brazil, Australia, New Zealand, Korea, China, Israel, etc). The new...

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Standards and approvals Reference International standards Leroy-Somer - IMfinity® 3-phase induction motors - 5147 en - 2018.04 / h 9

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Standards and approvals MAIN PRODUCT MARKINGS WORLDWIDE There are lots of special markings throughout the world. They mainly concern product conformance with current user safety standards in different countries. Some markings or labels only concern energy regulations. The same country can therefore have two markings: one for safety and one for energy. USA: energy efficiency conformance logo (optional). USA and Canada: EISA conformance logo (optional). This marking is mandatory for the Chinese...

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Standards and approvals Note: DIN 748 tolerances do not conform to IEC 60072-1. Leroy-Somer - IMfinity® 3-phase induction motors - 5147 en - 2018.04 / h 11

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General Environment Definition of «Index of protections (IP) The test will last for 3 minutes. Test result: no damage from water projected onto the machine. 12 Leroy-Somer - IMfinity® 3-phase induction motors - 5147 en - 2018.04 / h

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General Environment Environmental limitations NORMAL OPERATING CONDITIONS ACCORDING TO IEC 60034-1, MOTORS CAN OPERATE IN THE FOLLOWING NORMAL CONDITIONS: Correction coefficient table NB: The output power can only be corrected upwards once the ability of the motor to start the load has been checked. P1 / P • ambient temperature within the range -16°C to +40°C • altitude less than 1000 m POWER CORRECTION FACTOR For operating conditions outside these limits, apply the power correction coefficient shown in the chart on the...

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General Environment Impregnation and enhanced protection NORMAL ATMOSPHERIC PRESSURE (750 MM HG) The selection table below can be used to find the method of manufacture best suited to particular environments in which temperature and relative humidity show large degrees of variation (see relative and absolute humiditycalculation method, on preceding page). The symbols used refer to permutations of components, materials, impregnation methods and finishes (varnish or paint). The protection of the winding is generally described...

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General Environment Heaters SPACE HEATERS Severe climatic conditions, e.g. T amb < - 40°C, RH > 95% etc, may require the use of space heaters (fitted to one or two winding end coils) which serve to maintain the average temperature of the motor, provide trouble-free starting, and/or eliminate problems caused by condensation (loss of insulation). The heater supply wires are brought out to a terminal block in the motor terminal box. The heaters must be switched off while the motor is running. D.C. SUPPLY INJECTION HEATING An...

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