Three-Phase Electric Motor NEMA Technical Catalog
Motors Automation Energy Transmission & Distribution CoatingsW22Three-Phase Electric MotoralotAaNEMnical ChTecg
www.weg.netW22 LineThe increasing demand for electrical energy to sustainglobaldevelopment requires consistent heavy investments inpower supply generation. However, in addition tocomplex medium and long term planning, theseinvestments rely on natural resources, which arebecoming depleted due to constant pressures uponthe environment. The best strategy, therefore, tomaintain energy supply in the short term is to avoidwastage and increase energy efficiency. Electric motorsplay a major role in this strategy, since around 40% ofglobal energy demand is estimated to be related toelectric motor applications. Consequently, any initiativesto increase energy efficiency, by using high efficiencyelectric motors and frequency inverters, are to bewelcomed, as they can make a real contribution toreductions in global energy demand.At the same time as efficiency initiatives make animpact in traditional market sectors, the application ofnew technologies in emerging sectors is resultingin profound changes in the way that electric motors areapplied and controlled. By integrating these changes2W22 Electric Motortogether with the demands for increased energyefficiency, WEG has taken up the challenge andproduced a new design of high efficiency motor, onethat exceeds the performance of the previous WEG’sW21 motor line, which is recognised worldwide for itsquality, reliability and efficiency.Using the latest generation of computerised tools, suchas structural analysis software (finite element analysis)and computer fluid dynamics, as well as electricaldesign optimization software, an innovative - nextgeneration - product has been developed: the W22motor.Several key objectives have been achieved in thedesign of the W22 motor:g Reduction of noise and vibration levels;g Increased energy efficiency and reduced carbonfootprint;g Easy maintenance;g Compatibility with present & future generations offrequency inverters;g Flexible and modular design.
www.weg.netFrame 143T to 215TFrame 254T to 326TFrame 364/5T to 444/5TFrame 445/7T to 588/9TReducing Carbon Footprint and Cutting Costs with the W22W22 range of three-phase induction motors, designed to offer not only significantly lower energy consumption, butlower noise and vibration, higher reliability, easier maintenance and lower cost of ownership.Consisting of three products, each designed to exceed the requirements of the NEMA MG 1-2009, the W22 SuperPremium Efficiency, NEMA Premium Efficiency and High Efficiency can reduce energy losses by between 10% and50% compared with other typical motors. It’s an extremely effective way to reduce your carbon footprint, as well asyour energy costs.W22 motors fully comply with the energy efficiency requirements of the EISA 2007 (Energy Independence andSecurity Act 2007) from USA and EcoAction from Canada.W22 Electric Motor3
www.weg.netVisual Index4W22 Electric Motor3.1FramePage 63.2EyeboltsPage 63.4Earth terminalsPage 73.5Terminal boxPage 73.8EndshieldsPage 93.10Fan coverPage 93.11NameplatePage 94.1Cooling systemPage 10Page 115.1Shaft5.2BearingsPage 117.2Sealing systemPage 137.3PaintingPage 13
www.weg.netTable of Contents1. Versions Available. 062. Standards. 063. Construction Details. 063.1 Frame. 063.2 Eyebolts. 063.3 Points for Vibration Monitoring. 063.4 Earth Terminals. 073.5 Terminal Box. 073.6 Power Supply Connection Leads. 083.7 Accessory Connection Leads. 083.8 Endshields. 083.9 Drains. 083.10 Fan Cover. 093.11 Nameplate. 094. Cooling System and Noise Level / Vibration Level / Impact Resistance. 104.1 Cooling System and Noise Level. 104.2 Vibration Level . . . . .104.3 Impact Resistance . . . .105. Shaft / Bearings . . .115.1 Shaft . . 115.2 Bearings . . 115.2.1 Permissible Loads.115.2.2 Bearing Monitoring. 136. Mounting Forms. 137. Degree of Protection / Sealing System / Painting. 137.1 Degree of Protection . . . 137.2 Sealing System . . . 137.3 Painting . . . 147.3.1 Internal Anti-Corrosive Painting. 148. Voltage / Frequency . .149. Ambient / Insulation . . . 149.1 Space Heaters. 1510. Motor Protections. 1510.1 Protection Based on Operating Temperature. 1510.1.1 RTD. 1510.1.2 Thermistor (PTC). 1510.1.3 Thermostats . 1510.2 Protection Based on Operating Current. 1611. Variable Speed Drive Application. 1611.1 Considerations Regarding Voltage Spikes and The Insulation System . . . 1611.2 Torque Restrictions on Variable Speed Drive Applications . . 1611.3 Considerations Regarding Bearing Currents . .1711.4 Forced Ventilation Kit . . . . 1711.5 Encoders. 1712. Construction Features. . . 1813. Optional Features . . 2014. Electrical Data . . 2415. Mechanical Data . . 3416. Terminal Box Drawing . . 3717. Drip Cover Data. 3818. Distance from Fan Cover to Wall. 3819. Packaging. 3919.1 Frames 143T to 215T . . . 3919.2 Frames 254T to 588/9T . . . 3920. Spare Parts.40Tor sintion seriorehenda volut quatem nis et lani ut vel eosant et di asitatibusam harum andus, odit idipsamW22 Electric Motor5
www.weg.net1. Versions AvailableW22 NEMA Motors are available in three versions: W22High Efficiency, NEMA Premium Efficiency and SuperPremium Efficiency. These versions are in accordance withthe tables 12-11 and 12-12 from NEMA MG-1.The motor feet are completely solid for better mechanicalstrength (figure 2), allowing easier alignment and installation.2. StandardsW22 motors meet the requirements and regulations of thelatest version of the following Standards:CSA C22.2 No. 100-04CSA C390Motor and GeneratorsTest Methods, Marking Requirements and EnergyEfficiency Levels for Three-Phase Induction MotorsIEEE STD 112IEEE Standard Test Procedure for Polyphase InductionMotors and GeneratorsNEMA MG-1Motors and GeneratorsUL 1004-1Rotating Electrical Machines - General RequirementsTable 1 - Standards3. Construction DetailsThe information included in this document refers to standardconstruction features and the most common variations forW22 motors in low voltage for general applications in framesizes from 143T to 588/9T.W22 motors for special and/or customized applications areavailable on request. For more information, please contactyour WEG office or distributor.3.1 FrameThe W22 frame (figure 1) is manufactured in FC-200 cast ironto provide high levels of mechanical strength to cater for themost critical applications. The cooling fins are designed tominimize the accumulation of liquids and dust over the motor.Figure 1 - W22 Frame.Figure 2 - Solid feet.3.2 EyeboltsEyebolts are available from frame size 182T. The quantity ofeyebolts for each frame and mounting is shown in the table 2.Number ofDescriptioneyeboltsFrames 182T to 326T1Motors with feet and with side mounted terminal boxFrames 182T to 444/5T2Motors with feet and with top mounted terminal box2Frames 182T to 444/5T - Motors without feet and with C or D flange2mounted terminal box. These motors have four threaded holes in theFrames 445/7T to 588/9T - Motors with feet and side or topupper part of the frame for fastening of the eyebolts (figure 3)Frames 445/7T to 588/9T - Motors without feet and with C or D2flange. These motors have four threaded holes in the upper part ofthe frame for fastening of the eyebolts and two more threaded holesin the bottom partTable 2 - Eyebolts.Figure 3 - Motor with four threaded holes for fastening of the eyebolts.3.3 Points for Vibration MonitoringTo allow easy maintenance, specifically vibration testing, the254T to 588/9T frames are designed with flat areas on bothends for better placement of the accelerometer (figure 4).These areas are available both in vertical and horizontalplanes. Besides areas on the frame, W22 motors count onflat areas on the endshields for easier installation ofaccelerometers.6W22 Electric Motor
www.weg.netAs an option M8 threads for SPM accelerometers can besupplied.YYXXZFigure 4 - Flat surfaces for vibration monitoring on the back and front side.3.4 Earth TerminalsAll frames from 143T to 588/9T are provided with earthterminals located inside the terminal box (see figure 5).Motors on frames 364/5T to 588/9T are fitted with one moreearth terminal in the frame. It is located at the same side ofthe terminal box cable outlet (see figure 5) and is responsibleto equalize electrical potential and provide greater safety foroperators. Capable of withstanding cables from 25 mm2 to185 mm2.Earth terminal in the terminal box3.5 Terminal BoxThe terminal box of W22 motors is made with FC-200 castiron, which is the same material used to produce the frameand endshields. It is diagonally split for easier handling ofleads and connections.For frame sizes 445/7T to 588/9T the terminal box ispositioned towards the drive end of the motor. Thisarrangement allows improvement of the airflow over thecooling fins, thus reducing motor operating temperatures.Terminal box position on either the left or right hand side ofthe motor is possible through the use of an adaptor(see figure 7).Adapting deviceFigure 7 - Terminal box mounted on the left side viewing from shaft drive end sideWhen supplied from the factory with a side mountedterminal box arrangement, this can be positioned on theopposite side simply by rotating the adaptor.Similarly, by removing the adaptor and adjusting the lengthof the motor leads, the terminal box can be positioned ontop of the motor.The flexibility of terminal box positions on the W22 motoroffered by the adaptor can be seen in figure 8.Earth terminal on the frameFigure 8 - Terminal box mounted on both sides and on top (versatility).Figure 5 - Earth terminals in the terminal box and on the frameOptionally, the motors in frames 254T to 588/9T can besupplied with an additional earth terminal on the oppositeside of the frame (see figure 6).Conversely, factory supplied motors with the terminal boxposition on top can be modified to side mounting by fittingthe adaptor and extending the motor leads.For the frame size range 143T to 444/5T the terminal boxposition is centralized on the motor frame and can besupplied in two configurations - left/ right side (standard) ortop (optional) and for changing the mounting (terminal boxposition), the motor must be disassembled.Note: for all terminal box position modifications pleasecontact WEG or your local WEG service centre.Additionalearth terminalon the frameFigure 6 - Additional earth terminal position on the frame.For all frames, the terminal box can be rotated in 90 increments. Motors in frame sizes 504/5T, L447/9T, 586/7Tand 588/9T are supplied with removable cast iron glandplates.As an option, the gland plates can be supplied undrilled.W22 Electric Motor7
www.weg.netMotors are supplied with plastic plugs in the cable entries tomaintain the degree of protection during transport andstorage.In order to guarantee the degree of protection, cable entriesmust comply with at least the same degree of protectionindicated on the motor nameplate. Lack of compliance withsuch detail can invalidate the motor warranty. If required,please contact the WEG Service Area for further advice.3.6 Power Supply Connection LeadsMotor power supply leads are marked in accordance withNEMA MG-1 Part 2 - Terminal Markings and, as optional, canbe fitted with a terminal block made from a polyester basedresin BMC (Bulk Molding Compound), duly reinforced withfibre glass (see figure 9).Dedicated spaceheater boxFigure 12 - Two accessory terminal boxes attached to power terminal box.3.8 EndshieldsThe drive end endshield (figure 13) is designed with fins forbetter thermal heat dissipation, and to ensure low bearingoperating temperatures, resulting in extended lubricationintervals.For the frames 364/5T to 588/9T, where ventilation is criticalfor thermal performance of the motor, the endshield fasteningscrews are placed in such a way so as not to block airflow toany fin, thus contributing to better thermal exchange.Figure 9 - Six-pin terminal block.Motors 588/9T, as optional, can be provided with the terminalblock as shown in the figure 10.Figure 13 - Drive and non-drive endshieldsFigure 10 - 588/9T terminal block.3.7 Accessory Connection LeadsAccessory terminals are assembled on connectors wheneverthe motor is supplied with a terminal block. They may beassembled inside the main power terminal box or in aseparate accessory terminal box (figure 11).Whether the accessory terminals are assembled inside themain power or a separate terminal box, an NPT 3/4” threadedhole is provided for fitting of cable glands for the incomingconnection leads.In the Mechanical Data section of this catalogue it is possibleto check the quantity of connectors that may be assembledinside the main power and accessory terminal boxes.3.9 DrainsThe endshields have holes for drainage of water that maycondense inside of the frame. These holes are supplied withrubber drain plugs, in accordance with figure 14. These plugsleave the factory in the closed position and must be openedperiodically to allow the
W22 Electric Motor 3 Reducing Carbon Footprint and Cutting Costs with the W22 W22 range of three-phase induction motors, designed to offer not only significantly lower energy consumption, but lower noise and vibration, higher reliability, easier maintenance and lower cost of ownership.
NEMA ICS 3 Industrial Systems NEMA ICS 4 Terminal Blocks for Industrial Control Equipment and Systems NEMA ICS 6 Enclosures for Industrial Control Systems NEMA L 11 Industrial Laminated Thermosetting Products. NEMA LA 1 Surge Arresters NEMA PB 1 Panelboards NEMA PE 5 Constant-Potential-Type Electric Utility Battery Chargers NEMA RI 2 General .
No Suffix NEMA Type 1 DX NEMA Type 4X KRYDON A NEMA Type 12K R NEMA Type 3R AWK NEMA Type 12 (Without K.O.) RB NEMA Type 3R (Bolt-on hub provision) DS NEMA Types 4, 4X, 5 (Stainless steel) RWK NEMA Types 1, 3 & 12 (6-pole switches only) CS C
EC Electric Cylinder - User s Manual 4 Cylinder Configuration Guide 2 D 24VDC, 4.5 Amp, Permanent Magnet Motor H 160VDC, 2 Amp, Permanent Magnet Motor H4 160VDC, 5 Amp, Permanent Magnet Motor P22[*x] NEMA 23 Frame, Step Motor, 3 Stack P32[*x] NEMA 34 Frame, Step Motor, 2 Stack S32[*x] NEMA 34 Frame, Step Motor, 2 Stack S42[*x] NEMA 42 Frame, Step Motor, 2 Stack .
wiring your motor p.06 9.1 nema three-phase wiring diagrams p.07 9.1.1 nema brake motor wiring diagrams p.08 9.2 iec three-phase wiring diagrams p.09 9.2.1 iec brake motor wiring diagrams p.10 9.3 nema farm duty wiring diagrams p.11 9.4 nema single-phase wiring diagrams p.12 9.5 iec single-phase wir
wound 3 phase motors. Rotary Phase Converter A rotary phase converter, abbreviated RPC, is an electrical machine that produces three-phase electric power from single-phase electric power. This allows three phase loads to run using generator or utility-supplied single-phase electric power. A rotary phase converter may be built as a motor .
NEMA ICS 2.2, , 1983. NEMA ICS 14, Application Guide for Electric Fire Pump Controllers20012010 NEMA ICS 15, NEMA 250, Enclosures for Electrical Equipment19912008 This documents the latest edition years as requested by the Panel. NEMA 2.2 is no longer active. Material has been included into NEMA ICS 15 which should be added.
A static phase converter is one that externally changes a three phase motor to a capacitor-start, capacitor-run single phase motor; running at approximately the same amperage as a single phase motor of the same horse-power. The single phase amp draw of a three phase motor on our Phase Splitter is 1 1/2 times the three phase name-plate amps.
NEMA Size 1 NEMA Size 2 F00 F0 F1 F2 6.4 – 32 NEMA Size 0 NEMA Size 1 FB FD 9 – 45 NEMA Size 2 FG 22 – 110 NEMA Size 3 FK FLA Range Contactor Suffix 0.1 – 0.5 0.4 – 2.0 1 – 5 15, 25, 30A DC 1.6 – 8 15, 25, 30,
