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Summary of Contents for WEG W22Xdb
- Page 1 Motors | Automation | Energy | Transmission & Distribution | Coatings W22Xdb – Flameproof Motors Installation, Operation and Maintenance Rib-cooled Manual Tube-cooled...
- Page 3 Dear Customer, Thank you for acquiring a WEG motor. This is a product developed with levels of quality and efficiency that ensure an excellent performance. Since electric motors play an important role in comfort and wellbeing, they need to be identified and treated as driving machines, whose features include certain handling procedures such as storage, installation, and maintenance.
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Page 5: Table Of Contents
Table of Contents GENERAL INFORMATION ........................9 INTRODUCTION ..........................9 SAFETY INFORMATION ....................... 9 GENERAL INSTRUCTIONS ......................... 11 MOTOR APPLICATION ....................... 11 2.1.1. SAFETY WARNINGS IN THE MANUAL ..................11 TRANSPORTATION ........................11 RECEIVING INSPECTION ......................12 STORAGE ............................. 12 INDOOR STORAGE ........................ - Page 6 5.1.2. FOUNDATIONS ..........................23 5.1.3. TYPES OF BASES ........................24 5.1.3.1 CONCRETE BASES ......................24 5.1.3.2 SLIDE RAILS ........................25 5.1.3.3 METALLIC BASES ......................25 5.1.4. ALIGNMENT/LEVELLING ......................26 5.1.5. COUPLINGS ..........................26 5.1.5.1 DIRECT COUPLING ......................27 5.1.5.2 GEARBOX COUPLING ....................
- Page 7 MOTORS WITH INTERNAL BEARING TEMPERATURE PROBES ........... 52 8.5.1. STANDARD SOLUTION ....................... 52 8.5.2. OPTIONAL SOLUTION ......................... 52 POWER TERMINAL BOX ROTATION PROCEDURE ..............53 TIGHTENING TORQUE FOR FLAMEPROOF ENCLOSURES BOLTS ........55 SPARE PARTS ..........................55 MAINTENANCE PLAN ......................... 55 MOTOR ABNORMALITIES IN SERVICE.....................
- Page 8 8 | Flameproof motors...
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Page 9: General Information
- This personnel must carry this operating the electric motor. Manual along with other documents Once these WEG motors have been designed for supplied with the motor, and the explosive atmospheres, all safety information works... - Page 10 60034-1 Electric Rotating In order to allow WEG to provide a prompt service Machines when resquested, within technical standards, the IEC 60079-0 – General Standard for motor serial number that is available on the Explosion Proof Equipment identification nameplate should be supplied.
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Page 11: General Instructions
2. GENERAL INSTRUCTIONS NOTE MOTOR APPLICATION This provides important information for correct understanding and proper Based on the above mentioned Standards, WEG operation of the product. motors are intended for industrial applications. NOTE EX ATMOSPHERE INFORMATION It is not allowed to use standard... -
Page 12: Receiving Inspection
Position machines, devices and crates If anything has been noticed, notify immediately the on pallets, wooden beams or foundations that carrier, the insurance company and WEG. guarantee protection against ground dampness. It also prevents the equipment from sinking into the... -
Page 13: Vertical Motors Storage
Usually they can be stored in vertical or horizontal position but this measurement. needs always to be prior validated with WEG The insulation resistance should be measured using Service Team. a Megohmmeter. The test voltage for the motors... -
Page 14: Polarization Index
(atmospheric, chemical, thermal, and mechanical) has reached the acceptable values, according to imposed to the motor, which might happen during Table 3-2, otherwise refers to WEG for instructions. storage maneuvers, assembly, initial tests and storage until the commissioning. POLARIZATION INDEX... -
Page 15: Storage Place
3.7.3.2 OUTDOOR STORAGE grease from one type recommended by WEG in The outdoor storage the motor section 3.7.8. recommended. -
Page 16: Insulation Resistance
3.7.9. BEARINGS way keeping the winding insulation resistance within acceptable levels. 3.7.9.1 ANTIFRICTION BEARINGS LUBRICATED BY GREASE ATTENTION The bearings are lubricated at the factory to perform the motor tests. The space heaters of the motor must be mandatorily energized when the... -
Page 17: Connection Box
- Close the bearing tightly with the top sight glass. EX ATMOSPHERE INFORMATION In case the standstill period is longer than 6 The use and assembling of the months: appropriate cable glands - Repeat the procedures described above. responsibility of the motor installer. -
Page 18: Bearings Lubrication
3.7.12.2 BEARINGS LUBRICATION 3.7.12.3 INSULATION RESISTANCE VERIFICATION Use the lubricant specified for bearing lubrication. This information is indicated on the bearings Before starting in operation the insulation resistance nameplate, and the lubrication must be done as must be verified, according to the section 3.5 of this described in chapter 8-MAINTENANCE of this manual. -
Page 19: Maintenance Plan For Storage
3.7.13. MAINTENANCE PLAN FOR STORAGE During the storage period, the motor maintenance must be executed and registered according to the plan described in the table below: Table 3-5 - Maintenance plan for outdoor storage Table 3-4 - Maintenance plan for indoor storage... -
Page 20: Handling
4. HANDLING 4.1.2. VERTICAL MOTORS Use only the existing eyebolts to lift the motor. Never lift the motor by the shaft. Check the motor weight. Lifting and lowering must be done gently in order to avoid damage to the bearings. -
Page 21: Handling Tube Cooled Motors
Figure 4-5 - W22XdT LINE – vertical tube cooled motors ATTENTION The handling of the WEG vertical motors must be Use of belt slings is preferential to done as as showed in the Figure 4-5. - Page 22 Lift the motor through the 4 lateral eyebolts using 2 cranes; Lower the crane that is fixed in the motor drive end side and simultaneously lift the crane that is fixed in the motor non drive end side until the motor reaches the balance.
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Page 23: Installation
5. INSTALLATION ATTENTION The customer must guarantee that Electric motors should be installed in locations of foundation respects easy access for inspection and maintenance. If the frequencies defined in this manual. surrounding atmosphere contains humid, corrosive or flammable substances or particles, it is essential 5.1.2. -
Page 24: Types Of Bases
NOTE ATTENTION WEG wil not be responsible for the The drawing above shows the forces design and foundation of the base. over motor when running clockwise. For counter clockwise rotation, forces are reversed (F1, F2, 5.1.3. TYPES OF BASES 4.Cmax.) -
Page 25: Slide Rails
Installation and examples: Make sure that all motor feet surfaces are supported uniformly without damaging motor frame. After completing the test, introduce two tapered pins for correct fastening. For this purpose, use the pre-dilled holes in the feet. 5.1.3.2... -
Page 26: Alignment/Levelling
Figure 5-7 - Axial and radial reading combined. The axial alignment (dimension “E”) between the ATTENTION half couplings should be performed in accordance As standard, WEG motors are factory with its manufacturer recommendations. balanced with half key. This means When performing the alignment/leveling, the... -
Page 27: Direct Coupling
The couplings used must be suitable to withstand ATTENTION radial and axial vibrations during operation. Special care must be taken to avoid that the allowable load An improper key can result in a and speed limits given by the catalogs are not significant system unbalance, which exceeded. - Page 28 Laterally misaligned pulleys, when running, transmit alternating knocks to the rotor and can damage the bearing housing. Belt slippage can be avoided by applying a resin for this purpose. Incorrect Correct Incorrect Figure 5-12 - Correct assembly of pulleys...
- Page 29 When specific pulleys are required, to deflect the center of the belt a given distance. contact WEG in order to insure a Tensiometers may be obtained through belt correct designing. manufacturers or distributors.
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Page 30: Coupling Arrangement For Sleeve Bearing - Axial Clearance
The central mark is the indication of the magnetic Sleeve bearings normally used by WEG are not center; the other two outer marks indicate the designed to withstand axial forces continuously. allowable limits for the rotor axial displacement. -
Page 31: Cooling
When a customer supplies the half coupling sleeve to WEG, the motor is balanced with this half sleeve mounted to the shaft. When this is not the case, based on the above standards motor is balanced with half key (that is, the key way is fulfilled with a piece of metal of identical width, thickness and height of the keyway). -
Page 32: Automatic Lubricators
10% in relation to rated value (zone “B” in Figure 5-18). Table 5-5 - WEG limits for shaft vibration For rated frequency, a variation of 95% to 103% Shaft vibration (μm peak to peak) (zone “B”) is allowed. -
Page 33: Connections
LOW VOLTAGE: < 1,1kV For motors with increased safety terminal box, voltage and tolerances are limited by IEC/EN Table 5-6 - Terminal box entry holes and cables cross 60079-7 standard that imposes a maximum section (Low voltage) allowed voltage of 10kV + 10%. -
Page 34: Rotation Direction
HIGH VOLTAGE: 6,6 < Un < 11,0kV Table 5-8 - Terminal box entry holes and cables cross section (High voltage) Terminal boxes with protection Ex d or Ex e No. of entry Máx. cables Current holes/Dimension cross section ≤ 200A 1 / M63x1.5... -
Page 35: Protections
T = Temperature in ºC. through the interior of the motor. The references of the respective certificates must be considered. WEG recommends the connection and control of all installed thermal probes. The maximum setting Table 5-10 - Windings thermal protections... -
Page 36: Adjustment Of Motor Protection Devices
ATTENTION DANGER Any service on electric machines If required by the application, other should only be carried out when it is protection devices than those given completely stop phases above may be installed. disconnected from the power supply. 6. MECHANICAL INSTALLATION 5.2.5. -
Page 37: Noise Level
7. NOISE LEVEL CLEANLINESS Motors should be kept clean, free of dust, dirt and To ensure a low noise level operation, the source oil. Soft brushes or clean cotton rags should be of noise must be identified and how such noise is used to clean the motors. -
Page 38: Lubrication
110°C. limit (ex. T135ºC). WEG motors are normally supplied with grease LUBRICATION lubricated ball or roller bearings. 8.2.1. GREASE LUBRICATED BEARINGS Bearings should be lubricated to avoid metallic... -
Page 39: Type And Grease Characteristics
AEROSHELL 22 motors 2 poles are supplied with POLYREX EM (Suplier: Shell). 103 grease (Supplier: Esso). Characteristics of greases used on WEG motors: Tube cooled motors of 4 poles and more are supplied with STABURAGS... - Page 40 Table 8-3 – Roller bearings lubrication intervals for Lubrication intervals for horizontal mounted ribbed horizontal mounting cooled and tube cooled motors (50Hz and 60Hz) operating at an ambient temperature range -20ºC ROLLER BEARING up to +40ºC or -55ºC up to +40ºC are present in the...
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Page 41: Lubrication Intervals For High Temperature
Table 8-5 - Angular bearings lubrication intervals Table 8-7 - Ball bearings lubrication intervals vertical vertical mounting rib cooled motors mounting tube cooled motors ANGULAR CONTACT BALL BEARING BALL BEARING Grease Grease Operating Hours (h) Operating Hours (h) Bearing... - Page 42 Table 8-9 - Ball bearings lubrication intervals horizontal Lubrication intervals for horizontal mounted ribbed mounting cooled and tube cooled motors (50Hz and 60Hz) with special mounting of two (2) bearings (one (1) BALL BEARING roller bearing and one (1) ball bearing) operating at...
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Page 43: Quality And Quantity Of Grease
Table 8-13 - Ball bearings lubrication intervals vertical Table 8-15 - Ball bearings lubrication intervals vertical mounting rib cooled motors mounting tube cooled motors BALL BEARING BALL BEARING Grease Grease Operating Hours (h) Operating Hours (h) Bearing Poles Quantity... -
Page 44: Lubricating Instructions
As a general rule, greases with the same thickner type are compatible, but depending of the mixing proportion, may be incompatible. Therefore, is not recommended mixing different types of grease, without first consulting the grease supplier and/or WEG. Same and basic oils can not be mixed as they will not produce a homogeneous mixture. -
Page 45: Automatic Lubrication
8.2.9. AUTOMATIC LUBRICATION 8.2.9.2 PROLONGED STORAGE When requested, bearing regreasing intervals can In the event of need of disassemble and clean of be extended using automatic lubricators. These bearings according to defined in Table 3-4 and shall be mounted near the bearing itself to Table 3-5, the following steps must be followed automatically provide the grease substitution. -
Page 46: Sleeve Bearings
8.2.10. SLEEVE BEARINGS Figure 8-4 - Sleeve bearing assembly 1) Drain plug; 12) Oil ring; 2) Bottom half of the bearing housing; 13) Oil inlet; 3) Motor endshield; 14) Connection for temperature sensor; 4) Fixing bolts; 15) Oil sight glass or oil outlet for circulating oil system 5) Top half of the bearing housing;... -
Page 47: General Instructions
8.2.10.1 GENERAL INSTRUCTIONS 8.2.10.2 OIL TYPE CHARACTERISTICS Sleeve bearing performance is dependent on Table 8-16 - Oil specification and characteristics proper installation, lubrication and maintenance. Before assembling the bearing carefully read all Viscosity Range instructions contained herein to become familiar... -
Page 48: Sleeve Bearing Assembly
ATTENTION the oil ring. - Remove the garter spring that encircles the To make that feasible it is necessary labyrinth seal. Remove the top half of the seal, that bolts 4 and 6 of the other then rotate the bottom half of the seal out the bearing half be loose. -
Page 49: Setting Of Thermal Protections (Pt100)
8.2.10.5 SETTING THERMAL damaged. PROTECTIONS (PT100) After the split faces of the bottom liner half and the Each bearing is fitted with a Pt100 temperature housing base are aligned, lower the shaft into detector installed directly in the bearing liner near place. -
Page 50: Shaft Seals
In case of motors equipped with partial discharge in operation. monitoring, the terminal box contains the BNC jacks/terminal board for sampling with Iris portable equipment TGA-B (not in WEG scope of supply) indicated in the identification plate with the 8.2.10.8 SHAFT SEALS following design: The two halves of the floating labyrinth seal are held together by a garter spring. - Page 51 Figure 8-5 – Terminal box identification plate sample After identifying the correct terminal box as described above please ensure that gas or vapour is not present and is not expected to be present, in Figure 8-6 – Disassembly of terminal box cover quantities which may give rise to flammable concentrations, during the sampling period.
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Page 52: Motors With Internal Bearing Temperature Probes
MOTORS WITH INTERNAL BEARING TEMPERATURE PROBES When motor is equipped with total internal bearing temperature probes, the internal connections are as indicated in Figure 8-7. Terminal Box internal access Figure 8-9 – Disconnecting the connectorl Motor Endshield RE-ASSEMBLY THE ENDSHIELD When proceeding to the re-assembly, care must be taken with the re-connection of the conectors. -
Page 53: Power Terminal Box Rotation Procedure
POWER TERMINAL Silicone sleeve ROTATION PROCEDURE For motors equipped with Power Terminal Box – PTB, located at top of the motor with cable entries from drive end side. Kapton® tape PTB Cover Adapter Figure 8-12 - Example of Motor with PTB with cable... - Page 54 NOTE This device supplied ALTERNATIVE PROCEDURE TO ROTATE THE standard. WEG can provide it as POWER TERMINAL BOX (EXAMPLE FOR 90º option. CCW SEEN FROM TOP OF PTB): Remove the PTB cover: Turn the PTB 90º to cable entry at right side seen from DE side;...
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Page 55: Tightening Torque For Flameproof Enclosures Bolts
For this reason some parts should be equipments. kept in stock. CLOSE INSPECTION: WEG recommends keeping in stock the following Inspection which encompasses those aspects spare parts: covered by a visual inspection and, in addition, DE and NDE rolling bearings (for motors identifies those defects, such as loose bolts, which equipped with rolling bearings);... - Page 56 Table 9-1 - Maintenance plan DAILY Completely motor. Check the noise. Bearings. Check noise and vibration. WEEKLY Regrease: follow regreasing intervals based on lubrication Bearings. instructions. Coupling. After a week: check alignment and fixation and eventually refasten. Monitoring devices.
- Page 57 ENVIRONMENT Equipment is adequately protected against corrosion, weather, vibration and other adverse factors No undue accumulation of dust and dirt Electrical insulation is clean and dry Note: Items B7 and B8 account should be taken of the possibility of an explosive atmosphere in the vicinity of the equipment when using...
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Page 58: Motor Abnormalities In Service
If the motor stops, the MOTOR ABNORMALITIES current will rise from 3.5 to 4 times its rated value. IN SERVICE Most of the time, when this default occurs, it’s because a protection switch has not been installed... -
Page 59: Damage To The Bearings
- Start with or without load; Avoid using additional millings on the shaft (holes - Mechanic or reverse current brake; for fastening bolts, etc.) because this can cause - Accelerated rotating masses connected to the stress concentrations. motor shaft;... -
Page 60: Troubleshooting Chart
This troubleshooting chart provides a basic list of unusual cases that may occur during motor operation, possible causes and recommended corrective actions. For further information, contact WEG Service Area. Table 10-1 - Basic listing of abnormalities, causes and corrective actions... - Page 61 Abnormal noise during when uncoupled” operation on load. The noise disappears when the motor is Electric causes; switched-off. Contact WEG; Defect on the transmission components or the Check the power transmission, the coupling driven machine; and the alignment; Defect on the gear transmission;...
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Page 62: Troubleshooting Chart About Bearings
TROUBLESHOOTING CHART ABOUT BEARINGS NOTE This troubleshooting chart provides a basic list of unusual cases that may occur on bearings during motor operation, possible causes and recommended corrective actions. For certain cases, bearing manufacturer is required in order to identify the root cause of the defect. -
Page 63: Warranty Terms
No employee, agent, dealer, repair shop or other person is authorized to give any warranties on behalf of WEG nor to assume for WEG any other liability in connection with any of its products. In case this happens without WEG's authorization, Warranty is automatically cancelled. - Page 64 NOTES ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________...
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- Page 68 All rights reserved Specifications subject to change without notice. 68 | Flameproof motors...