Nidec Leroy-Somer IMfinity LC Series Manual
Nidec Leroy-Somer IMfinity LC Series Manual

Nidec Leroy-Somer IMfinity LC Series Manual

Liquid cooled motors

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IMfinity
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Liquid cooled motors - LC series
3-phase induction motors
IE3 Premium efficiency
Variable and fixed speed
Frame size 315 to 500
150 to 1500 kW

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Summary of Contents for Nidec Leroy-Somer IMfinity LC Series

  • Page 1 IMfinity ® Liquid cooled motors - LC series 3-phase induction motors IE3 Premium efficiency Variable and fixed speed Frame size 315 to 500 150 to 1500 kW...
  • Page 2 The LC induction motors in this catalog are designed to achieve very high efficiency levels and operate at variable speed. This catalog contains technical information about motors in the IE3 efficiency class (Premium efficiency) which can be used on an A.C. supply and also on a drive. On request, Leroy-Somer is able to offer IE4 motor solutions.
  • Page 3: Table Of Contents

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Contents GENERAL TECHNICAL CHARACTERISTICS Introduction ................4 Designation.................50 Quality Commitment .............5 Identification ...............51 Directive and Standards Relating to Motor Efficiency....6 Description of an LC Motor basic conception ......53 Standards and Approvals ............7 Cooling ................54 Regulations in the Main Countries ........10 Standard Equipment ............56 Optional Features ...............57...
  • Page 4: General Introduction

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® General Introduction In this catalog, Leroy-Somer describes high-efficiency liquid-cooled 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 ®...
  • Page 5: Quality Commitment

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® General Quality Assurance Leroy-Somer's quality management Personnel are trained and take part in Products for particular applications or system is based on: the analyses and the actions for those designed to operate in specific continuously improving the procedures.
  • Page 6: Directive And Standards Relating To Motor Efficiency

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® General Directive and Standards Relating to Motor Efficiency STANDARD FOR MEASURING There have been a number of changes Efficiency classes Efficiency level to the standards and new standards THE EFFICIENCY OF created in recent years. They mainly ELECTRIC MOTORS: IEC Standard concern motor efficiency and their...
  • Page 7: Standards And Approvals

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® General Standards and Approvals LIST OF STANDARDS QUOTED IN THIS DOCUMENT Reference International Standards IEC 60034-1 EN 60034-1 Rotating electrical machines: rating and performance. Rotating electrical machines: methods for determining losses and efficiency from tests IEC 60034-2 (additional losses added as a fixed percentage).
  • Page 8 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® General Standards and Approvals MAIN PRODUCT MARKINGS WORLDWIDE Special markings are in place all over the world. They primarily concern product compliance with safety standards for users in force in countries. Some markings or labels only apply to energy regulations. One country can have two different markings: one for safety and one for energy.
  • Page 9 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® General Standards and Approvals INTERNATIONAL AND NATIONAL STANDARD EQUIVALENTS International reference standards National standards ITALY SWITZERLAND Title (summary) FRANCE GERMANY NFEN 60034-1 60034-1 Ratings and operating characteristics NFC 51-120 DIN/VDE O530 BS 4999 CEI 2.3.VI.
  • Page 10: Regulations In The Main Countries

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® General Regulations in the Main Countries Many countries have already The majority of countries requiring As regulations are constantly changing implemented energy regulations registration before products are offered and vary from country to country, it is concerning electric motors.
  • Page 11: Environment

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Environment Definition of “Index of Protection” (IP) INGRESS PROTECTION OF ELECTRICAL EQUIPMENT ENCLOSURES number: number: number: In accordance with IEC 60034-5 - EN 60034-5 (IP) - IEC 62262 (IK) Protection against solid objects Protection against liquids Mechanical protection Tests...
  • Page 12: Environmental Limitations

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Environment Environmental Limitations NORMAL OPERATING In temperate climates, relative humidity is generally between 50 and 70%. For the relationship between relative humidity and motor impregnation, especially where humidity and temperature CONDITIONS are high, see table on next page. According to IEC 60034-1, motors can operate in the following normal conditions:...
  • Page 13: Impregnation And Enhanced Protection

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® 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 humidity calculation method, on preceding page).
  • Page 14: Heating

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Environment Heating SPACE HEATERS A.C. INJECTION HEATING Severe climatic conditions may require A single-phase A.C. voltage (from 10 to the use of space heaters (fitted to the 15% of rated voltage), can be used motor windings) which serve to maintain between 2 phases placed in series.
  • Page 15: External Finish

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Environment External Finish Surface protection is defined in standard ISO 12944. This standard defines the expected life of a paint system until the first major application of maintenance paint. Durability is not guaranteed. Standard EN ISO 12944 is divided into 8 parts.
  • Page 16: Interference Suppression And Protection Of People

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Environment Interference Suppression and Protection of People AIRBORNE INTERFERENCE APPLICATION OF LOW The IEC 61000 standard, currently in preparation, will define permissible VOLTAGE DIRECTIVE EMISSION rejection and immunity rates: only then 2006/95/EC For standard motors, the housing acts as will machines for general distribution an electromagnetic screen, reducing...
  • Page 17: Construction Bearings And Bearing Life

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Construction Bearings and Bearing Life – 1000000 --------- - --------- - … min ---------------------- - --- - 60 N DEFINITIONS where N = speed of rotation (rpm) : average speed of rotation P (P = X F + Y F ): dynamic load...
  • Page 18: Lubrication And Maintenance Of Bearings

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Construction Lubrication and Maintenance of Bearings ROLE OF THE LUBRICANT GREASING • Conventional greases with a metallic soap base (calcium, sodium, aluminum, The principal role of the lubricant is to A lubricating grease can be defined as a lithium).
  • Page 19: Operation Duty Cycle - Definitions

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Duty Cycle - Definitions DUTY CYCLES 5 - Intermittent periodic duty with corresponding different rotation (IEC 60034-1) electrical braking - Type S5 speeds (in induction motors, this can be done by changing the number of poles). A sequence of periodic duty cycles, each The typical duty cycles are described There is no rest and de-energized period...
  • Page 20 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Duty Cycle - Definitions Fig. 4. - Intermittent periodic duty with Fig. 5. - Intermittent periodic duty with Fig. 6. - Periodic continuous duty with starting. Type S4. electrical braking. Type S5. intermittent load.
  • Page 21 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Duty Cycle - Definitions Fig. 9. - Duty with non-periodic variations in load and speed. Type S9. Fig. 10 - Duty at discrete constant loads. Type S10. Speed Load Load Electrical losses Electrical losses T max Temperature...
  • Page 22: Supply Voltage

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Supply Voltage REGULATIONS AND The motors in this catalog are • Variation in frequency around the rated frequency: designed for use on the European STANDARDS power supply of 400 V ±10% - 50 Hz. - continuous operation: ±1% The IEC 60038 standard gives the All other voltages and frequencies...
  • Page 23 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Supply Voltage SIMULTANEOUS VARIATION Variation in main motor parameters (approx.) within the limits defined in IEC Guide 106. OF VOLTAGE AND U /f Cos j Efficiency FREQUENCY Within the tolerances defined in IEC cos j Efficiency f’...
  • Page 24: Insulation Class - Temperature Rise And Thermal Reserve

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Insulation Class - Temperature Rise and Thermal Reserve INSULATION CLASS TEMPERATURE RISE AND ΔT = (235 + T ) + (T THERMAL RESERVE The machines in this catalog have been designed with a class F insulation system Leroy-Somer liquid-cooled motors are : cold resistance measured at ambient for the windings.
  • Page 25: Starting Times And Starting Current

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Starting Times and Starting Current PERMISSIBLE STARTING TIMES AND LOCKED ROTOR TIMES The starting times calculated must remain within the limits of the graph opposite which defines maximum starting times in relation to the starting current.
  • Page 26: Power - Torque - Efficiency - Power Factor (Cos ɸ)

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Power - Torque - Efficiency - Power Factor (Cos DEFINITIONS A.C. supply is expressed as a function of The output power P at the motor shaft is the apparent power (S) and the reactive expressed as a function of the phase-to- The output power (P ) at the motor...
  • Page 27 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Power - Torque - Efficiency - Power Factor (Cos RATED POWER P DETERMINATION OF THE Starting class RELATION TO DUTY CYCLE POWER IN INTERMITTENT Class: n = nD + k.nF + k’.ni DUTY CYCLES FOR nD: number of complete starts per hour GENERAL RULES FOR STANDARD...
  • Page 28 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Power - Torque - Efficiency - Power Factor (Cos CALCULATING DERATING EQUIVALENT THERMAL TRANSIENT OVERLOAD √ n x t x [I x P] + (3600 - n x t u x fdm CONSTANT AFTER OPERATION IN TYPE Input criteria (load)
  • Page 29: Noise Level

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Noise Level NOISE EMITTED BY The weighting is carried out on sound A few basic definitions: meters using filters whose bandwidth ROTATING MACHINES The unit of reference is the bel, and takes into account, to a certain extent, compressible medium,...
  • Page 30: Weighted Sound Level

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Weighted Sound Level [dB(A)] Under IEC 60034-9, the guaranteed This being the case, standardized sound Expressed as sound power level (Lw) values are given for a machine operating power level limits are shown for the according to the standard, the level of no-load under...
  • Page 31: Vibrations

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Vibrations VIBRATION LEVELS - However, if preferred, the table of vibration amplitudes can still be used (for measuring sinusoidal and similar vibrations). BALANCING The machines in this catalog are in vibration class level A - level B is available on Inaccuracies construction request.
  • Page 32 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Vibrations BALANCING THE COUPLING MAXIMUM VIBRATION COMPLIANT MOUNTINGS MAGNITUDE LIMITS To find out the motor balancing type, look (RMS VALUES) IN TERMS at its nameplate. Coupling adapted OF DISPLACEMENT, SPEED to the key length The motors are 1/2 key balancing as AND ACCELERATION FOR A standard, unless otherwise indicated.
  • Page 33: Performance

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Performance THERMAL PROTECTION These protection devices provide total shown in the table below, with a description protection of the motor against non- of each. It must be emphasized that under Motors are protected by a manual or transient overloads.
  • Page 34: Starting Methods For Induction Motors

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Starting Methods for Induction Motors The two essential parameters for starting DIGISTART D3 ELECTRONIC • Total protection cage induction motors are: STARTER - Continuous thermal modeling - Starting torque Using the latest electronic control maximum motor protection (even in the technologies manage...
  • Page 35 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Starting Methods for Induction Motors Number Starting Starting Mode Outline diagram Characteristic curves Advantages torque current of steps Simplicity of the equipment D.O.L. High torque Minimum starting time 0.25 0.75 Starting current 0.25 0.75...
  • Page 36 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Starting Methods for Induction Motors Number Starting Starting Mode Outline diagram Characteristic curves Advantages torque current of steps Can be used to select the torque 0.25 0.75 Current Soft starting reduction n ≥...
  • Page 37 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Starting Methods for Induction Motors Number Starting Starting Mode Outline diagram Characteristic curves Advantages torque current of steps Adjustable on site Choice of torque and current No power cut-off Smooth starting Compact size DIGISTART No maintenance...
  • Page 38: Braking

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Braking GENERAL Operation Operation Operation as an The braking torque is equal to the torque as a brake as a motor asynchronous generator produced by the motor, increased by the resistive torque of the driven machine. = braking torque = motor torque = resistive torque...
  • Page 39 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Braking Π (moy) MECHANICAL BRAKING The braking current is calculated using The D.C. voltage to be applied to the the for mula: windings is calculated by: Electromechanical brakes (D.C. or A.C. Uf = k3i .
  • Page 40: Use With A Variable Speed Drive

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Use with Variable Speed Drive MOTORS USED WITH ADAPTATION OF MOTORS Consequences on the motor VARIABLE SPEED DRIVE Reminder: Leroy-Somer recommends A motor is always characterized by the the connection of PTC sensors, following parameters, which depend on monitored by the drive, to protect the GENERAL...
  • Page 41 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Use with Variable Speed Drive INSULATION SYSTEM RECOMMENDATIONS CONCERNING Leroy-Somer machines that have been earthed in accordance with good practice VARIABLE SPEED APPLICATIONS THE MECHANISM OF ROTATION FOR need no special options except in the VARIABLE SPEED APPLICATIONS The insulation system for the LC series situations listed below.
  • Page 42 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Use with Variable Speed Drive GOOD WIRING PRACTICE Connection of control and Power cables encoder cables It is the responsibility of the user and/or The following information is given for the installer to connect the motor-drive guidance only, and should never be used Strip back the shielding on system in accordance with the current...
  • Page 43 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Use with Variable Speed Drive OPERATION AT SPEEDS ENCODER When the installation complies with emissions standard 61800-3 HIGHER THAN THOSE As an option, LC motors can be fitted category C2 (if an HV/LV transformer ASSIGNED BY THE A.C.
  • Page 44 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Use with Variable Speed Drive TYPICAL MOTOR AND DRIVE Motor power supply cables: These A.C. supply cables must be shielded to ensure EMC PACKAGE INSTALLATION conformance of the installation. The The following information is given for Switch-fuse cable shielding must be connected over guidance only, and should never be...
  • Page 45 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Use with Variable Speed Drive EXTREME OPERATING STARTING TORQUE AND CURRENT CHOICE OF MOTOR CONDITIONS AND OTHER Thanks advances control There are two possibilities: electronics, the torque available when POINTS a - The frequency inverter is not the motor is switched on can be adjusted supplied by Leroy-Somer MOTOR CONNECTIONS...
  • Page 46 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Use with Variable Speed Drive APPLICATIONS AND CHOICE OF SOLUTIONS 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 Power The torque varies as the square of the speed (or cube of the power).
  • Page 47: Operation As An Asynchronous Generator

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Operation as an Asynchronous Generator GENERAL The motor operates as an asynchronous generator each time the load becomes a driving load and the rotor speed exceeds the synchronous speed (Ns). This can be induced either voluntarily, as in the case of electric power plants (water or wind power, etc.) or involuntarily, caused by factors linked to the application...
  • Page 48 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Operation as an Asynchronous Generator CONNECTION TO A POWER SUPPLY FOR AN It is advisable to use connecting stator resistances to limit this phenomenon. POWERFUL MAINS SUPPLY ISOLATED NETWORK • Disconnecting the asynchronous It is assumed that the machine stator is This concerns supplying a consuming generator from the grid does not...
  • Page 49: Special Environments

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Operation Special Environments MERCHANT NAVY Some industries and processes are ELECTRIC PROPULSION particularly harsh for electric motors. APPLICATIONS - main propulsion - auxiliary propulsion (bow thrust ONBOARD INDUSTRIAL propulsion) In order to meet the needs of harsh APPLICATIONS operating applications, Leroy-Somer, - air compressors...
  • Page 50: Technical Characteristics

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Technical Characteristics Designation 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. IM 1001 220 kW IFT/IE3 400 V D 50 Hz...
  • Page 51: Identification

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Technical Characteristics Identification NAMEPLATES All the motors in this catalog have two The table below explains the various nameplates: dedicated markings. The nameplate is used to identify performance when the motor is powered motors, state the main performance on the A.C.
  • Page 52 cos ϕ 1491 1000 1665 0.89 97.4 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors 1491 1000 0.89 ® 1490 1000 1739 0.90 1492 1000 1623 0.88 1788 1000 1448 0.89 97.4 Technical Characteristics Polyrex EM 103 Identification Min water ow = 70 l/min Modèle de marquage moteurs LC Max water temp = 38°C Max pressure = 5 bars...
  • Page 53: Description Of An Lc Motor Basic Conception

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Technical Characteristics Description of an LC Motor basic conception Description Materials Comments Housing Steel With lifting rings Double wall for circulation of water. Ground terminals Stator Insulated low-carbon FeSi magnetic Fully-processed magnetic steel laminations steel laminations Welded packs Electroplated copper...
  • Page 54: Cooling

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Technical Characteristics Cooling Method Designation for the IC (International IC 7 1 W Cooling) coded cooling method in the IEC 60034-6 standard. Secondary fluid (water) Circulation method (primary fluid circulation) Circuit layout (7: built-in heat exchanger) Circuit layout Characteristic number Abbreviated description...
  • Page 55 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Technical Characteristics Cooling Method 1 - Leroy-Somer's LC motors are The motor housings consist of a double- • Conductivity: 1000 to 1500 µS/cm designed with IE3 efficiency level up to a walled steel body in which the water Do not operate the motor without cooling water inlet temperature of 38°C max.
  • Page 56: Standard Equipment

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Technical Characteristics Standard Equipment PLUG WITH BREATHABLE WATER LEAK DETECTOR MEMBRANE The motors in this catalog are supplied as standard with an integral breathable waterproof membrane. This PTFE membrane is air- and steam-permeable An external power supply must be but liquid-proof (IP66 min.).
  • Page 57: Optional Features

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Technical Characteristics Optional Features OPERATION ON A DRIVE MOTOR PROTECTION • Reinforced winding insulation (Leroy- • IP56 or IP65 protection • Thermal sensors in the windings and Somer's RIS system) endshields (PT100, PTC, KTY, PTO or •...
  • Page 58: Handling

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Technical Characteristics Handling LIFTING THE MOTOR ONLY All our motors are fitted with grab To prevent any damage to the motor handles, making them easier to handle during handling (for example: switching (not coupled to the machine) without risk.
  • Page 59: Electrical Characteristics

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Electrical Characteristics IE3 Mains Supply The efficiency values indicated in the table below are minimum values 2-POLES 400 V/50 Hz Starting Maximum Starting Noise Rated Rated torque/ torque/ current/ Moment Weight Efficiency Rated Rated power...
  • Page 60 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Electrical Characteristics IE3 Mains Supply The efficiency values indicated in the table below are minimum values 2-POLES 380 V/50 Hz 415 V/50 Hz 460 V/60 Hz Rated Rated Rated Power Rated Rated Power Rated Rated...
  • Page 61: Ie3 Variable Speed Drive Supply

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Electrical Characteristics IE3 Variable Speed Drive Supply 2-POLES 400 V/50 Hz % Rated torque M Rated Rated Rated Maximum Power factor Type power speed current mechanical 10 Hz 17 Hz 25 Hz 50 Hz 87 Hz speed...
  • Page 62 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Electrical Characteristics IE3 Variable Speed Drive Supply Reminder of recommended protection devices Stress level experienced by the motor Drive power supply type (with cable length ≤ 100 m) Drive and sine wave filter 1: standard level 2-quadrant drive 2: severe level...
  • Page 63: Terminal Block Connection

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Electrical Characteristics Terminal Block Connection TERMINAL BLOCKS DIRECTION OF ROTATION The usual wiring diagrams are as follows: All standard motors are supplied with LC 315 L, 315 LK and 355 L motors: The direction of rotation seen from a wiring diagram in the terminal box.
  • Page 64: Mechanical Characteristics

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Mounting Arrangements MOUNTINGS AND POSITIONS (IEC 60034-7) Foot mounted motors IM 1001 (IM B3) IM 1071 (IM B8) - Horizontal shaft - Horizontal shaft - Feet on floor - Feet on top •...
  • Page 65: Terminal Box Connection

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Terminal Box Connection MAIN TERMINAL BOX Positions of the terminal box in Cable gland positions in relation to relation to the drive end (motor in the drive end Placed as standard on the top of the IM 1001 position) motor at the drive end, it is IP 55 protection and fitted with an undrilled removable...
  • Page 66 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Terminal Box Connection DIMENSIONS OF CABLE GLAND SUPPORT PLATES FOR THE MAIN FLYING LEADS TERMINAL BOX According to specification, motors can be supplied with flying leads using Usable area for drill holes on cable gland mounting plates single-core cables (as an option, the (dimensions in mm)
  • Page 67 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Terminal Box Connection SIZE AND DIMENSIONS OF THE MAIN TERMINAL BOXES LC 315 L - 315 LK - 355 L LC 355 LK - 400 L - 400 LK - 450 L Leroy-Somer - Liquid-Cooled Motors - LC Series - 5370 en - 2017.05 / b...
  • Page 68 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Terminal Box Connection SIZE AND DIMENSIONS OF THE MAIN TERMINAL BOXES LC 500 This configuration is used to connect up to 12 conductors per phase Leroy-Somer - Liquid-Cooled Motors - LC Series - 5370 en - 2017.05 / b...
  • Page 69: Dimensions Of Shaft Extensions

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Shaft End Dimensions Dimensions in millimeters M.O x p MOA x pA Main shaft extensions 4 and 6 poles 2 poles Type LC 315 LA 90m6 70m6 62.5 LC 315 LB 90m6 70m6 62.5...
  • Page 70: Dimensions Of Foot Mounted Im 1001 (Im B3)

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Dimensions - Foot mounted IM 1001 (IM B3) Dimensions in millimeters 4 Ø K Ø AC Main dimensions β Vertical Type TB Angle LC 315 LA 1090 LC 315 LB 1219 LC 315 LKA 1219...
  • Page 71: Dimensions Of Foot And Flange Mounted Im 2001

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Dimensions - Foot and flange mounted IM 2001 (IM B35) Dimensions in millimeters 4 Ø K n Ø S Ø AC Main dimensions Type Symb LC 315 LA 1090 376 FF600 LC 315 LB 1219 376 FF600...
  • Page 72: Im 3011 (Imv1)

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Dimensions - Flange mounted IM 3001 (IM B5) IM 3011 (IM V1) Dimensions in millimeters I II α n Ø S Ø AC Flange dimensions Main dimensions Type symbol α° 1090 FF600 22,5...
  • Page 73: Dimensions - Water Connecting Flange

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Dimensions - Water Connecting Flange Dimensions in millimeters Lf/2 Water connecting flange dimensions Type Size LC 315 LA DN25-PN16 EN1092-1 LC 315 LB DN25-PN16 EN1092-1 LC 315 LKA DN32-PN16 EN1092-1 LC 315 LKB DN32-PN16 EN1092-1 LC 315 LKC (2 &...
  • Page 74: Bearings And Lubrication

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Bearings and Lubrication BEARINGS WITH GREASE SPECIAL CONSTRUCTION Note: The quality and quantity of grease and the greasing interval are shown on NIPPLES AND ENVIRONMENT the machine nameplate. The table below indicates the greasing For vertical shaft machines, Instructions for bearing maintenance intervals, depending on the type of motor,...
  • Page 75: Axial Loads

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Axial Loads HORIZONTAL MOTOR For a bearing life L at 25,000 hours and 40,000 hours Permissible axial load (in daN) on main shaft extension for standard bearing assembly IM B3/B6 IM B7/B8 IM B5/B35 3000 rpm...
  • Page 76 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Axial Loads VERTICAL MOTOR SHAFT FACING DOWN For a bearing life L at 25,000 hours and 40,000 hours Permissible axial load (in daN) on main shaft extension for standard bearing assembly IM V5 IM V1/V15 3000 rpm...
  • Page 77: Radial Loads

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Radial Loads PERMISSIBLE RADIAL Note: The selection charts are applicable If the load factor kR is greater than 1.05, for a motor installed with the shaft should consult technical LOAD ON THE MAIN horizontal.
  • Page 78 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Radial Loads STANDARD FITTING ARRANGEMENT Permissible radial load on main shaft extension with a bearing life L of 25,000 hours. : Radial Force X: distance with respect to the shaft shoulder LC 315 LA LC 315 LB LC 315 LKA...
  • Page 79 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Radial Loads STANDARD FITTING ARRANGEMENT Permissible radial load on main shaft extension with a bearing life L of 25,000 hours. : Radial Force X: distance with respect to the shaft shoulder LC 355 LKB LC 355 LKC LC 400 LA...
  • Page 80 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Radial Loads SPECIAL FITTING ARRANGEMENT Type of drive end roller bearings Non-drive end bearing Drive end bearing (NDE) (DE) Series Type Number of poles 315 LA 4; 6 6316 C3 NU320 315 LB 4;...
  • Page 81 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Radial Loads SPECIAL FITTING ARRANGEMENT Permissible radial load on main shaft extension with a bearing life L of 25,000 hours. : Radial Force X: distance with respect to the shaft shoulder LC 315 LA LC 315 LB LC 315 LKA...
  • Page 82 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Mechanical Characteristics Radial Loads SPECIAL FITTING ARRANGEMENT Permissible radial load on main shaft extension with a bearing life L of 25,000 hours. : Radial Force X: distance with respect to the shaft shoulder LC 355 LKB LC 355 LKC LC 400 LA...
  • Page 83: Appendix

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Appendix Calculating the Efficiency of an Induction Motor MACHINE EFFICIENCY Additional losses come from a variety From then on, the usual equation gives of sources: surface losses, busbar the efficiency: Efficiency is the ratio between the output currents, high-frequency losses, losses power (needed to drive a machine) and linked to leakage flux, etc.
  • Page 84 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Appendix Units of Measurement and Standard Formulae ELECTRICITY AND ELECTROMAGNETISM Units and expressions Parameters Unit not recommended Non SI, but French name English name Symbol Definition Conversion accepted Fréquence Frequency Hz (hertz) Période Courant électrique Electric current...
  • Page 85 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Appendix Units of Measurement and Standard Formulae THERMODYNAMICS Units and expressions Parameters Unit not recommended Non SI, but French name English name Symbol Definition Conversion accepted Température Temperature K (kelvin) temperature °C: degree Celsius Thermodynamique Thermodynamic Celsius, t, °C...
  • Page 86 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Appendix Units of Measurement and Standard Formulae MECHANICS Units and expressions not Unit Parameters recommended Non SI, but French name English name Symbol Definition Conversion accepted Temps Time minute: min Symbols ’ and ” are reserved Intervalle de temps, durée s (second) hour: h...
  • Page 87 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Appendix Unit Conversions Unit MKSA (IS international system) AGMA (US system) 1 ft = 0.3048 m in = 25.4 mm Length 1 m = 3.2808 ft 1 mm = 0.03937 in Weight 1 kg = 2.2046 lb 1 lb = 0.4536 kg 1 lb.ft = 1.356 N.m...
  • Page 88 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Appendix Standard Formulae Used in Electrical Engineering MECHANICAL FORMULAE Formula Unit Definitions/Notes Title Force F in N A force F is the product of a mass m by an acceleration γ F = m m in kg γ...
  • Page 89 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Appendix Standard Formulae Used in Electrical Engineering ELECTRICAL FORMULAE Formula Unit Definitions/Notes Title Accelerating torque Moment of acceleration M is the difference between the motor torque M (estimated), and the resistive torque M ----------------------------------------------------------- - M –...
  • Page 90 IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Appendix Tolerance on Main Performance Parameters TOLERANCES ON ELECTROMECHANICAL CHARACTERISTICS IEC 60034-1 specifies standard tolerances for electromechanical characteristics. Parameters Tolerances Efficiency machines P ≤ 150 kW – 15% of (1 – η) machines P >...
  • Page 91: Configurator

    IMfinity - LC Liquid-Cooled 3-Phase Induction Motors ® Appendix Configurator The Leroy-Somer configurator can be • Help with product selection used to choose the most suitable motor • Print-outs of technical specifications and provides the technical specifications • Print-outs of 2D and 3D CAD files and corresponding drawings.
  • Page 92 Connect with us at: twitter.com/Leroy_Somer facebook.com/leroysomer.nidec youtube.com/user/LeroySomerOfficiel theautomationengineer.com (blog) Moteurs Leroy-Somer SAS. Headquarters: Bd Marcellin Leroy, CS 10015, 16915 Angoulême Cedex 9, France. Share Capital: 65 800 512 €, RCS Angoulême 338 567 258. 5370 en - 2017.05 / b...

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