LOHER – Explosion-protected Motors
LOHER –explosion-protected motorsEngineered for maximum safety, reliability and efficiencysiemens.com/loher-motorsAnswers for industry.
Comply with standards and setnew benchmarksDanger of explosion, aggressive atmospheres, extreme temperatures. Drives in the oil & gas, chemical andpetrochemical sectors have to cope with a lot of challenges. Even under the harshest conditions conceivable,LOHER motors fulfill all of the associated requirements when it comes to safety, reliability and efficiency.This results in maximum protection for man and machine – and last but not least, also for the environment.2
Already back in the sixties, LOHER motors played a leadingrole when it came to explosion-protected drives. Sincethen, this leading position has been continually expanded.Today, we are the market leader with a wealth of experience in this domain. The many years of experience and thesector-specific know-how in this area not only allow us tocomply with the most stringent standards, but also to setnew benchmarks. This is the reason that LOHER CHEMSTAR, LOHER VARIO and LOHER VARIO PLUS motors optimally supplement and expand Siemens drive solutionsbased on SIMOTICS motors.An investment that pays off in plants and systems inthe chemical, petrochemical and oil & gas industriesVery extreme applications in hazardous zones also demandvery rugged and durable drive technology. Our decades ofexperience in the development, design, dimensioning andproduction of explosion-protected motors guarantees youoptimum operational reliability, availability and adaptationto the actual application conditions.It’s safe to say: the optimum type of protectionLOHER motors cover all of the applicable types of protection – from 0.1 to 10,000 kW. The seamless LOHER rangeincludes dust explosion protection in hazardous Zones 21and 22 as well as type of protection Ex n (non-sparking)for Zone 2, where sparks that can potentially ignite anexplosion cannot occur. LOHER also covers Zone 1 – withthe following types of protection: Pressurized encapsulationEx p (the motor is pressurized using an inert gas to preventthe ingress of explosive gases), Ex e (increased safety,which avoids inadmissibly high temperatures at any position on the motor) as well as flameproof motors Ex d. Withthis type of protection, the motor has been designed sothat any explosion inside the motor cannot be propagatedto the outside, and the motor frame can withstand thepressure caused by an explosion. Especially with regard toflameproof encapsulated motors, the LOHER series, whichextends up into the MW range, is second to none when itcomes to the scope and reputation in the global market.This pertains to explosive gases in the chemical, petrochemical and oil & gas industries as well as for Group I firedamp-proof motors in the mining industry. Explosion-protected motors are available in a rib-cooled design; forhigher power ratings, they are also available with pipecooling or with mounted heat exchangers (air/air or air/water) – and then generally in a pressurized enclosureEx p. All Ex d motors in all of the various designs, includingtheir Ex d components, are individually tested in the factory to ensure that they can withstand the appropriatepressure levels.Motors certified for the global marketAll explosion-protected LOHER motors are ATEX certified;the directive of the European Union, which harmonizes allof the individual country regulations regarding explosionprotection. Further, they are certified by the PhysikalischTechnischen Bundesanstalt (PTB), Dekra Exam or by TÜVNord. A version in compliance with VIK directives (Verbandder Industriellen Energie- und Kraftwirtschaft) is optionallyavailable.The seamless portfolio up into the megawatt range300 kWGas ExZone 2 Ex nChemstarVarioGas ExZone 1 Ex eChemstarVarioGas ExZone 1 Ex dGas ExZone 1 Ex pDust ExZone 21 / 221,000 kWChemstarVario10,000 kWVario plus*Vario Plus*ChemstarWaTER COOLEDVarioVario3,000 kWTUBE COOLEDVario plus*Vario plus** VARIO PLUS available with higher power ratings on request3
For global use, it goes without saying that the motorshave certificates for specific countries, such as NEPSI(China), PESO (CCOE India) and Rostekhnadzor (Russia) –these are also for low temperatures, which makes thempredestined for use in extremely cold regions of theworld. They are also certified according to the new international IECEx scheme, which over the medium-term, is tobe the global platform for mutually recognizing andaccepting tests and certificates for explosion-protectedelectrical equipment.Straightforward: customized solutions to address everydemandThe LOHER motor brand label stands for drive solutionsthat are completely tailored to specific customer and sector requirements – even for demanding and unique specifications and special requirements. To secure this, wework closely with our clients.Based on well-proven platforms, we adapt explosion-protected LOHER motors to address the specific project needswith the highest degree of flexibility and precision. This iswith reference to the design, electrical dimensioning, special monitoring equipment as well as special cooling typesand degrees of protection.Specialized to tackle extremes: motors that you canutterly depend onThe process industry frequently involves hazardous zones.However, other extreme conditions, such as heat, cold,pollution and aggressive atmospheres, are often encountered on a daily basis. Our drive systems are also optimallyequipped to cope with all of these. Examples includeoperating temperatures from –55 C up to 70 C anddegrees of protection up to IP68. This means that customized drive solutions are created for the particular plant,application or customer specification. We always developthe optimum configuration irrespective of how extremethe installation site is.Double for higher durability: double protection formaximum safetyThe LOHER range also includes drive solutions with doubleprotection: On one hand, this is double certification forgas and dust explosion protection for applications wherefine dusts and also explosive gases can occur – forinstance in the process industry or in mining. The otheroption is double protection Ex d and Ex e. This double protection makes sense onboard liquid gas tankers, where, asa result of the hazardous cargo, it must be absolutelyexcluded that electrical equipment can represent an ignition source. To address this requirement, explosion-protected LOHER motors have a mechanical design with typeof protection “flameproof enclosure”. They also have typeof protection “increased safety”, which ensures that specific temperatures of the active parts – both inside themotor as well as on the surfaces – are not exceeded.Bonus points when it comes to economy and ecology:high efficiency and low operating costsFor several years now, the IE2 efficiency class is specifiedin the European Economic Area for motors. An IE2 motorhas an efficiency that is up to seven percent higher thanconventional motors. According to the applicable legislation, explosion-protected motors do not fall under this ruling. In spite of this, the LOHER series of explosion-protected motors has IE2 efficiency as standard over thecomplete validity range of the standard – from 0.75 kWup to 375 kW. This is true for all types of protection: Ex n,Ex e, Ex p and Ex d. Not only this, on request, explosionprotected motors are also available in an even higher IE3efficiency class. These motors have an efficiency that is upto ten percent higher than conventional motors.At a glance: the many advantages of LOHER Ex motors All Ex types of protection, also double protection Vibration-proof, shock resistant and earthquake-proofLOHER motors LOHER motors for deserts – specifically designed towithstand heat, dust and sand storms Low temperature LOHER motors for drive applicationsunder polar conditions LOHER motors for chemically aggressive environments Double certified motors for use in hazardous zones with gasor dustThese are just a few examples. Extremely robust with a wide range of operating temperatures Compliance with almost all user requirements and specifications Predestined for extreme installation sites Specially designed to address applications in the oil & gas,petrochemical and chemical industries Degrees of protection up to IP68 Operation with converters is generally possible withoutinvolving complex system tests Short delivery times4
Complete project documentation guarantees minimum planning costs Connection system for large cable cross-sections avoids additional cabling costs, even more generously dimensionedconnection systems optionally available State-of-the-art production technologies(e.g. UV impregnation) secure a high product quality High degree of cost effectiveness and low operating costs asa result of optimum electrical and mechanical values Available in the area of validity of the new efficiency classesin IE2 (high efficiency) and IE3 (premium efficiency) All of the important international certificates for hazardouszones, e.g. ATEX, IEC Ex, NEPSI (China), PESO (CCOE India)and Rostekhnadzor (Russia)5
Integrated Drive SystemsLOHER explosion-protected motors in perfect collaborationwith their system partnersSiemens Integrated Drive Systems transform drive components into real systems. As a consequence, basic capitalinvestment goods are turned into important success factors. Drive technology based on Integrated Drive Systemssecures maximum productivity, energy efficiency and reliability in any automation environment and over the complete lifecycle – tailored to individual requirements or asstandard system for all torque ranges, power and performance classes and voltage specifications.Based on the unique concept of triple integration,Siemens drive technology based on Integrated Drive Systems creates a real value added. Convertors, motors, couplings and gearboxes from a single source are fully integrated at the drive level, and at the communication and6information levels with Totally Integrated Automation –with a perspective that encompasses the complete lifecycle. Worldwide, Siemens Integrated Drive Systems arethe only real complete drive solution. They facilitate anoticeably shorter time to market and a correspondinglyshorter time to profit.LOHER explosion-protected motors, converters that havebeen specifically tailored to control explosion-protectedmotors – such as the SINAMICS G180 – as well as ATEXcertified FLENDER couplings and gearboxes can be integrated to form a perfectly coordinated Integrated DriveSystem for applications in hazardous locations.
Side by side with SINAMICS G180:first choice on the converter sideConverters are available that have been specificallydesigned to control LOHER explosion-protected motors,and which address the requirements relating to explosionprotection. For instance, SINAMICS G180 convertersdeveloped for the chemical and petrochemical industriesare available, which have been developed for operationwith explosion-protected motors in Zones in 1 and 2 andhave ATEX certification. With these devices, a shutdownconcept that is also ATEX-certified allows a plant or system to be safely shut down without requiring a main contactor. This is also applicable when operating motors inhazardous Zones 1 without having to change the dimensions, which ensures a significant cost saving potential onthe plant side.And with a range of power ratings from 2.2 to 6,600 kW,this series of devices is available for voltages typicallyused in the process industry – of course also for 500 and690 V.For applications in the chemical and petrochemical industries, our converters are also equipped with NAMUR functions and terminal strips. Operation based on thePROFIBUS profile PROFIdrive 4.1 – “process technology” –operating mode is also possible. Further, protective separation (PELV) is guaranteed. Sine-wave output filters ordu/dt filters are available to limit voltage peaks and ratesof rise. Driver blocks and faceplates specifically developedfor the SINAMICS G180 are used to integrate the drive system into the automation environment as part of TotallyIntegrated Automation. This means that the SINAMICSG180 can also be integrated into higher-level SIMATIC PCS7 process control systems and, via PROFIBUS, can be controlled from the central PCS 7 control station. Further, allof the operating data can also be visualized.Optimum option:our mechanical drive componentsOn the mechanical side, FLENDER gearboxes and couplings complete our Integrated Drive System for hazardous zones in the process industry. FLENDER gearboxes aswell as couplings are available with ATEX certification.RUPEX / N-EUPEX and ARPEX couplings can be optionallycertified as devices for use in hazardous zones accordingto this directive.For decades, mechanical FLENDER gearboxes have beenused to address different requirements in the processindustry: whether gearboxes for agitators, ventilators orwater screw pumps. They are especially quiet, and setthemselves apart as a result of their high efficiency, reinforced bearings and the fact that they are absolutely oiltight. In conjunction with ARPEX and N-EUPEX couplings,which have especially proven themselves in drives forconveying and pumping aggressive and hot media, theyprovide an environmentally-friendly solution that hasbeen technically proven in the field.7
LOHER CHEMSTARLOHER CHEMSTARRib-cooled low-voltage motors for exceptional requirements in the processindustryLOHER CHEMSTAR motors set themselves apart as a resultof the fact that they have been specifically designed forhazardous zones and extreme installation sites in thechemical, petrochemical as well as oil & gas industries.For small and medium-power ratings, it is especially theLOHER CHEMSTAR motor series that ensures a maximumdegree of safety and reliability, highest availability and lowoperating costs. With power ratings up to 500 kW, thismotor is the ideal drive component as it complies with allof the requirements of the chemical and petrochemicalindustries. A design that addresses specific sector requirements takes into account the installation site – not only forhazardous zones, but also for explosion-free environments. A high-quality paint finish resistant to chemicalsand the optionally galvanized fan cover protect againstaggressive atmospheres.Anti-condensation heating is frequently not even requiredfor a high humidity. LOHER CHEMSTAR motors operatesmoothly from –55 C up to 70 C, even in zones with8dust and gas. This means that these motors are admirablysuited for desert and polar regions. When required, themotors can be equipped with corrosion-resistant stainlesssteel screws and shaft seals in IP66 to protect against waterand dust. IP55 is the standard degree of protection, however, degrees of protection are available up to IP67.Certified for special requirementsLOHER CHEMSTAR motors are supplied with sector-specificdocumentation, including ATEX certificate for the chemicaland petrochemical industry. In addition to ATEX, it goeswithout saying that other sector-specific certificates areavailable, such as NEPSI (China), PESO (CCOE India) andRostekhnadzor (Russia).The motor frame is manufactured out of rugged grey castiron. This makes it extremely resistant to corrosion, itdampens vibration and has a high mechanical strength.Reinforced bearings and integrated PTC thermistors arealso available. The adapted motors comply with almost alluser requirements and specifications.
LOHER CHEMSTARLoher CHEMSTAR motor – technical designCHEMSTARbasic designCHEMSTARplus option W09Additional optionsTop-mounted terminal box, can berotated through 4 x 90 RAL color versionsLabeled and certified forconverter operationSPM nipple from FS 132Reinforced bearingsLarger terminalsEx n, Ex e,Ex deIP55Item No.Metric cable entry threads acc. toDIN 42925 / Dec. 2004Supplementary terminal boxStainless steel screws and boltsVibration severitylevel AAnti-condensation heatingShaft seal up to IP66PTC thermistorPermanent lubrication upto and incl. FS280Various fan materialsRelubrication system from FS 160Galvanized fan coverN14A paint finish that is especially resistantto chemicalsAmbient temperature from –55 C upto 70 CVIK versionBasic CHEMSTAR designThermal utilization F/BMotor frame completely out ofcast ironTag plate Vibration severity level AOption package W09 – CHEMSTAR plus designfor chemical and petrochemical applications Top-mounted terminal box, can be rotated through 4 x 90 Vibration severity values the same as level B Permanent lubrication up to and incl. FS 280 VIK version Metric cable entry threads acc. to DIN 42925 / Dec. 2004 IP56 motor degree of protection Thermal utilization F/B Motor frame completely out of cast iron RAL colors Tag plate Shaft seal IP66 Galvanized fan cover N14A paint finish that is especially resistant to chemicalsAdditional supplementary options (with and without W09) Labeled and certified for converter operation with standard andspecial insulation SPM measuring nipple Reinforced bearings Relubrication system from FS 160 Stainless steel screws and bolts Anti-condensation heating Various fan materials Ambient temperature from –55 C up to 70 CPTC thermistor as additional protection or exclusive protectionSupplementary terminal boxSpecial paint finishesSpecial paint colorsCable glands – also for shielded or armored cablesLarger terminalsand a lot more9
LOHER CHEMSTARExplosion-protected motors also with a high efficiencyThe new international efficiency standard IEC 60034-30,which reflects the increasing significance of energy efficiency, also involves explosion-protected motors.To address this, the series is available across the boardwith high IE2 efficiency – and we have developed a newseries of flameproof encapsulated motors (type of protection Ex d) and motors with increased safety (type of protection Ex e) with an even higher efficiency class – IE3(premium efficiency).Our high-efficiency explosion-protected LOHER CHEMSTARmotors cover a power range extending from 0.75 kW upto 375 kW. They are available in 2, 4 and 6-pole versionsas well as in 50 and 60 Hz. The majority of CHEMSTARmotors also fulfill the IE2 standard at increased ambienttemperatures (e.g. 50 C) or higher installation altitudes(e.g. 2000 m) without requiring derating.All advantages at a glance: Available in high efficiency class IE2 and also IE3 For applications in hazardous Zones 1and 2 with converter operation Double protection Ex d and Ex e possible Double certified motors for hazardous locations withgas and dust Accepted by Shell, DOW, BAYER, Statoil, BP,ABB Lumus, Technip and many more Extremely rugged, corrosion-resistant, torsionallystiff cast iron frames with a high strength Smooth, disturbance-free operation from –55 C upto 70 C Frequently, anti-condensation heating is not required even for high humidity levels High quality paint finish resistant to chemicals Galvanized fan cover Available with corrosion-resistant stainless steelscrews and bolts Shaft seals in IP66 protect against water and dust10
LOHER CHEMSTARTechnical dataShaft heights:Frame size 071 – 355 mmPower range:Up to 500 kW (thermal utilization according to the thermal class B)Number of poles:2 –12-pole;Voltage range:The usual low voltages and voltage ranges according to IEC 600038Rated voltages:400 V / D 10 %690 V / S 10 %500 V 10 %special voltagesOperating mode:S1 line operation or S9 converter operation; special operating modeDegree of protection:IP55, IP56, IP65 on request up to IP67Cooling method:IC 411, IC 416Type construction:IM B3IM B5, IM B35, IM V1, IM V3, IM V5, IM V18, IM B14, IM B34 (special)Frame:Cast ironBearings:Roller bearings (standard) and special bearings for high axial andradial forcesRegulations:IEC, EN, DIN, VDETypes of protection: marked according toEN 60079-0, 2009Zone 1:II 2G Ex de IIC temperature class T4 EPL GbZone 21:dust protection (max. surface temperature 120 C):II 2D Ex tb IIC T120 C GbZone 2:II 3G Ex nA IIC T3 GcZone 22:II 3D Ex tc IIIC T120 C GcNoise level: 77 dB(A) 3 dB(A) tolerancelow-noise version possible for 2-pole motors (GG3)Shaft seal IP66 (optional)Metal cageBearing endshieldSliding surfaceSealing lipShaft Axial sealing ring (Gamma ring 9RB) Sealing lip slides on a precision-machined metal surface As the speed increases, the contact pressure decreases –therefore minimum wear Together with the frame, the metal cage forms a labyrinth seal and protects the sealing lip against jets ofwater, dust and mechanical damage Suitable for horizontal and vertical motor types of construction Mechanical design prevents water from collecting in thearea around the sealing lip Especially suitable for outdoor installation, especially V3 Degree of protection of the seal IP66 /65 verified byEXAM Used under extreme conditions for 25 years11
LOHER VARIOLOHER VARIOMaximum safety in the oil and gas industryIn a welded steel design from shaft height 355 and higher,the LOHER VARIO motors are available in low-voltage andhigh-voltage versions depending on the particular application. LOHER VARIO low-voltage and high-voltage motorsare equipped as standard with features that are required toaddress applications in the oil & gas sectors as well as thepetrochemical and chemical industries. This series ofmotors complies with the standards of the various operating companies to an extremely high degree. With powerratings up to 3,150 kW, their main applications are in theoil and gas sector where high-rating pumps and compressors are required for pumping and transporting oil and gas.They can be used in any hazardous Zone – up to gas groupII C according to explosion protection class II 2 G Ex de II CT4 Gb. Equipped with roller bearings, LOHER VARIO motorsare predestined for use in Zone 1 and in highly explosiveenvironments containing hydrogen. All of the motors arecertified according to ATEX, NEPSI, PESO (CCOE) and Rostekhnadzor.12They are also certified for low temperatures, which makesthem admirably suited for use in oil and gas fields in coldclimatic regions around the world such as in Canada,Alaska and Siberia.Designed down to the finest detailLOHER VARIO motors are available in all of the usual voltages and frequencies up to 11 kV. They set themselvesapart as a result of their extremely rugged design: Torsionally stiff steel frames – which at higher power ratings offerincreased stiffness and low vibration levels – ribbed bearing endshields in cast iron or steel with a high mechanicalstrength. Vertical motors can also be equipped with thrustbearings for high axial and radial loads.The high efficiency is obtained by using magnetic slotwedges – resulting in significantly lower power costs. Theterminal box can either be mounted on the side or at thetop – other modifications are available on request. All ofthe terminal boxes can be rotated through 90 .
LOHER VARIOTechnical dataShaft heights:355, 400, 450, 500, 560, 630Power range:80 kW – 3,150 kWNumber of poles:2 – 16-pole, higher pole numbers available on requestVoltage range:400 V – 11,000 VRated voltage:400 V, 690 V, 3.3 kV / 4.16 kV / 6 kV / 6.6 kV / 10 kV / 11 kVDegree of protection:IP55, IP56, IP65, IP67, IP68Cooling method:IC 411, IC 416Type of construction:IM B3, IM B35, IM V1, IM V3, additional types on requestFrame:Welded steelBearings:Roller bearings, sleeve bearings (only for gas group IIB)Standards:IEC, EN, DIN, VDEExplosion protection:II2G Ex d(e) IIB T4 Gb, II2G Ex d(e) IIC T4 GbII2G Ex e IIC T3 GbII2G Ex px (e) IIC T3 GbII3G Ex nA IIC T3 GcII2D Ex tb IIIC T120 C DbII3D Ex tc IIIC T120 C DcNoise level:Max. 85 dB(A) (load, 50 Hz), low noise version availableAll advantages at a glance: All explosion types of protection, also double Double certified motors for use in hazardous zoneswith gas or dust Also predestined for highly explosive environmentscontaining hydrogen Special versions of the motors are suitable for polarregions down to –55 C (without heating the motor,down to –40 C) or desert regions with 60 C Also certified for low temperatures When required, vertical motors can also beequipped with thrust bearings for high axialand radial loads Extremely rugged due to torsionally stiff steel frame Wide range of connection systems for large cablecross-sections, high short-circuit strength or phasesegregated version Optimized starting and operating parameters and highefficiency using copper bar rotors as standard High degree of variability using a welded steel frame(dimensions can be adapted, mounted components)13
LOHER tube-cooledTube-cooled LOHER motorsFlameproof motors for especially high power ratingsLOHER motors with tube cooling are used to address thehigher power range of flameproof motors up to 6,500 kW.The stainless steel cooling pipes concentrically arrangedaround the active motor part act as air-air heat exchanger.The special inner cooling system with X ventilation, axialand radial cooling slots ensure a uniform temperaturelevel. The rugged design facilitates safe and straightforward operation in Zone 1 – both when connected directlyto the line supply or fed from a converter.14
LOHER tube-cooledTechnical dataShaft heights:Power range:Number of poles:Voltage range:Rated voltage:Converter:Degree of protection:Cooling method:Type construction:Frame:Bearings:Standards:710, 800, 1,000800 kW – 6500 kW2 – 16-pole, higher pole numbers available on request3,000 V – 11,000 V3.3 kV / 4.16 kV / 6 kV / 6.6 kV / 10 kV / 11 kVLine and converter operationIP55, IP56, IP65IC 511, IC 516IM B3, IM B35, IM V1Welded steelRoller bearings, sleeve bearings (only for gas group IIB)IEC, EN, DIN, VDEExplosion protection:II2G Ex d(e) IIB T4 GbII2G Ex d(e) IIC T4 Gb (on request)II2G Ex e IIC T3 GbII3G Ex nA IIC T3 GcII3D Ex tc IIIC T120 C DcNoise level:Max. 86 dB(A) (load, 50 Hz), lower noise version availableAll advantages at a glance: Very rugged with stainless steel cooling pipes Special inner cooling system for a uniform temperaturedistribution Also available for exceptional requirements, such asexplosion protection for dust or double protectionEx e and Ex d Special versions of the motors are suitable for polarregions down to –55 C (without heating the motor,down to –40 C) or desert regions with 60 C When required, vertical motors can also beequipped with thrust bearings for high axialand radial loads Wide range of connection systems for large cablecross-sections, high short-circuit strength or phasesegregated design Optimized starting and operating parameters and highefficiency using copper bar rotors as standard High degree of variability based on a welded steel frame(dimensions can be adapted, mounted components)15
LOHER VARIO PLUSLOHER VARIO PLUSHigh-voltage motors with modular cooling system for maximum safety andavailability for demanding applicationsLOHER VARIO PLUS motors can be tailored to address theparticular application making them admirably suited forindividual drive and customized solutions. The motorshave a modular cooling system, are highly reliable andefficient and are available up to shaft height 800 in lowand high voltage versions. They are built according to customer and sector-specific requirements to address applications in Zones 1 and 2 as well as Zone 22. LOHER VARIOPLUS motors are equipped with dual-flow internal coolingfor a high power density and uniform temperaturedistribution.16Two versions are available:Mounted air-water heat exchangerHeat exchangers specifically coordinated and harmonizedfor this series guarantee optimum cooling. The motorpower loss is dissipated through the cooling water, and istherefore decoupled from the ambient temperature. Theheat exchangers are available in a wide range of versionswith single and double-pipe designs. The high-qualitymaterials used for the cooler are adapted to the particularrequirements.Mounted air-air heat exchangerThe motors are equipped with air-air heat exchangers.The cooling pipes are manufactured out of galvanizedsteel; stainless steel versions are available for especiallyaggressive atmospheres. In conjunction with the appropriately coordinated Ex p system they can be used for Zone 1applications in the upper power range.
LOHER VARIO PLUSAll advantages at a glance: All motors have dual-flow inner cooling for a high-powerdensity with uniform temperature distribution Highest degree of flexibility both regarding theelectrical as well as mechanical features, e.g.starting characteristics, noise, vibration andefficiency requirements etc. High quality materials for the cooling system Flexible cooling concept, e.g. redundantventilation systems Special versions for especially aggressiveatmospheres Special series in a sleeve bearing version for continuoussub-critical operation when connected to a converter Wide range of connection systems for large cable crosssections, high short-circuit strength or phase-segregateddesign Optimized starting and operating parameters and highefficiency by using copper bar rotors as standard High degree of cost effectiveness and lower operatingcosts based on optimum electrical and mechanical values High degree of variability using a welded steel frame(dimensions can be adapted, mounted components)Technical dataShaft heights:Power range:Number of poles:Voltage range:Rated voltage:Converter:Degree of protection:Cooling method:Type of construction:Frame:Bearings:Standards:500, 560, 710, 800355 kW – 10,000 kW, higher power ratings on request2 – 16-pole, higher pole numbers available on request690 V – 11,000 V690V, 3kV, 3.3 kV / 4.16 kV / 6 kV / 6.6 kV / 10 kV / 11 kVLine and converter operationIP55, IP56IC611, IC616, IC666, IC81W, IC86WIM B3, IM B35, IM V1, IM V10Welded steelRoller bearings, sleeve bearingsIEC, EN, DIN, VDEExplosion protection:II2G Ex px (e) IIC T3 GbII2G Ex e IIC T3 GbII3G Ex nA IIC
motor as well as on the surfaces – are not exceeded. Bonus points when it comes to economy and ecology: high efficiency and low operating costs For several years now, the iE2 efficiency class is specified in the European Economic Area for motors. An iE2 motor has an efficiency tha
DOW'S FIRE & EXPLOSION INDEX HAZARD CLASSIFICATION GUIDE SEVENTH EDITION a AIChE techrzical manual published by the American Institute of Chemical Engineers 345 East 47th Street, New York, NY 10017 0 1994 . C1.jpgFile Size: 788KBPage Count: 9Explore furtherDow Fire and Explosion Index (F&EI) AIChEwww.aiche.orgDOW FIRE AND EXPLOSION INDEX pdfeasystudy.infoDow Fire and Explosion Index (Dow F&EI) and Mond Indexwww.slideshare.netDow's Fire and Explosion Index Hazard Classification Guide .www.wiley.com(PDF) Dow's fire and explosion index: a case-study in the .www.researchgate.netRecommended to you based on what's popular Feedback
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Low voltage induction motors – IEC and NEMA High voltage induction motors Inverters Eddy current variable speed drives Drip proof motors – LV and HV DC motors Synchronous motors Vertical hollow shaft motors Hazardous area motors High efficiency motors Brake motor
Motors with corrosion resistant parts Wheel motors with recessed mounting flange OMP, OMR- motors with needle bearing OMR motor in low leakage version OMR motors in a super low leakage version Short motors without bearings Ultra short motors Motors with integrated positive holding brake Motors with integrated negative holding brake .
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NEC explosion protection Class I, Zone 1 AEx e q [ia] IIC T4 Gb CEC gas explosion protection Ex e q [ia] IIC T4 Gb Class I, Division 2 CNEX gas explosion protection Ex e q [ia op is Ga] IIC T4 Gb CNEX dust explosion protection Ex tD [iaD op is] A21 IP65 T110 C KCS explosion protection Ex e q IIC T4 Ex tb IIIC IP64 T110 C Ex ia IIC T4 Ex ia .
development—year 1 (2012–13) FINAL PROJECT REPORT by Qing Shen, P.I.*; Peng Chen*; Peter Schmiedeskamp*; Alon Bassok*; Suzanne Childressy *University of Washington yPuget Sound Regional Council for Pacific Northwest Transportation Consortium (PacTrans) USDOT University Transportation Center for Federal Region 10 University of Washington More Hall 112, Box 352700 Seattle, WA 98195-2700 .
