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Summary of Contents for WEG S Series
- Page 1 Motors I Automation I Energy I Transmission & Distribution I Coatings Synchronous Motors S Line – Horizontal Brushless Installation, Operation and Maintenance Manual...
- Page 3 Installation, Operation and Maintenance Manual Document Number: 11866576 Models: SEA, SED, SET, SEV, SEF, SER, SEI, SEW, SEL, SFA, SFD, SFT, SFV, SFF, SFR, SFI, SFW and SFL Language: English Revision: 04 May 2016...
- Page 5 1. The total or partial reproduction of information supplied in this manual is authorized, provided that reference is made to its source. 2. If this manual is lost, an electronic PDF file is available at www.weg.net or another printed copy may be requested.
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Page 7: Table Of Contents
INDEX INTRODUCTION ....................11 SAFETY WARNINGS IN THE MANUAL ................... 11 GENERAL INSTRUCTIONS ................. 12 QUALIFIED PERSONNEL ........................ 12 SAFETY INSTRUCTIONS ........................ 12 STANDARDS ........................... 12 ... - Page 8 4.6.1.1 Radiators for application with sea water ................24 4.6.2 Independent ventilation cooling ......................25 ELECTRICAL ASPECTS ......................... 25 4.7.1 Electrical connections......................... 25 4.7.1.1 Main electrical connections ....................25 ...
- Page 9 7.4.2 Re-impregnation ..........................40 7.4.3 Insulation resistance ..........................40 COOLING SYSTEM MAINTENANCE ....................40 RADIATOR MAINTENANCE ......................40 VIBRATION ............................. 40 SHAFT GROUNDING DEVICE ......................40 ...
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Page 11: Introduction
Following these procedures is also important to ensure the validity of the motor warranty. Thus, we recommend carefully reading this manual before performing the installation, operation or maintenance of the motor. If you need any further information, consult WEG. 1.1 SAFETY WARNINGS IN THE MANUAL... -
Page 12: General Instructions
2 GENERAL INSTRUCTIONS All personnel involved with the assembly, operation or maintenance of electrical installations must be informed and updated on the standards and safety instructions that guide the job and are advised to strictly comply with them. Before beginning any job, the person in charge must make sure that all points have been duly observed and warn the respective personnel about the danger inherent to the task to be performed. -
Page 13: Operating Conditions
2.5 OPERATING CONDITIONS In order for the product warranty to be valid, the motor must operate according to the rated data indicated on its nameplate, observing the applicable standards and the information provided in this manual. 2.6 VOLTAGE AND FREQUENCY... -
Page 14: Receiving, Handling And Storage
The package must be inspected upon receipt for occasional damages during transportation. ATTENTION Any damage must be photographed, documented and reported immediately to the carrier, the insurer and WEG. The non- communication of this damage will void the warranty. ATTENTION Parts supplied in additional packages must be checked upon receipt. -
Page 15: Storage
If any of these requirements is not met in the storage site, from sinking into the soil. Free air circulation underneath WEG recommends that additional protections be the motor must be assured. incorporated to the motor package during the storage... -
Page 16: Outdoor Storage
Recommended Product: Anticorit BW protective agent 3.3.2.1.2 Outdoor storage Manufacturer: Fuchs ATTENTION 3.3.2.6 Bearings Outdoor storage of the motor is not 3.3.2.6.1 Grease-lubricated rolling bearing recommended. The rolling bearings are lubricated at the factory to In case outdoor storage is unavoidable, the motor must be perform the tests of the motor;... -
Page 17: Terminal Box
3.3.2.7 Terminal box ATTENTION When the insulation resistance of the motor windings is In order to keep the bearings in good measured, the main terminal box and the other terminal conditions during the storage period, every boxes must also be inspected, observing the following... -
Page 18: Maintenance Plan During Storage
3.3.2.10 Maintenance plan during storage During the storage period, the motor maintenance must be performed and recorded according to the plan described in Table 3.1 Table 3.1: Storage plan Before Monthly Notes months months years start-up Storage Location Inspect the cleanliness conditions... -
Page 19: Preparation For Commissioning
Reassemble the sleeve bearings and carry out lubrication. Contact WEG to perform this procedure. 3.3.3.3 Bearing lubrication Use the lubricant specified for bearing lubrication. Information on the bearings and lubricants are indicated on the bearing nameplate, and the lubrication must be done as described in section 7.10 of this manual, always... -
Page 20: Installation
Winding rated Insulation resistance test - In order to operate the motor in the opposite voltage (V) continuous voltage (V) direction, consult WEG. < 1000 1000 - 2500 500 - 1000 2501 - 5000 1000 - 2500 5001 - 12000 2500 - 5000 >... -
Page 21: Measurement On The Rotor And Exciter Windings
Figure winding and the motor shaft. The measuring current 4.1. must not pass through the bearings. Measurement of the auxiliary exciter stator winding (PMG), if any: Disconnect the cables that connect the auxiliary exciter to the voltage regulator;... -
Page 22: Insulation Assessment
If the measured insulation resistance, referred to 40 ºC, is below 100 M or the polarization index is below 2, before putting the motor into operation, consult WEG. 4.5 PROTECTIONS Motors used in continuous duty must be protected against overloads by means of a motor integral device,... -
Page 23: Temperature Limits For The Windings
ATTENTION Table 4.4: Insulation class The motor protection devices are listed in the Insulation class (ºC) WEG drawing - Connection diagram. Ambient temperature Not using these devices is the sole T = temperature rise (temperature measurement 105 125... -
Page 24: Temperature And Ohmic Resistance Of The Pt100 Thermoresistance
4.5.1.4 Temperature and ohmic resistance of the PT100 thermoresistance Table 4.6 shows the temperature as a function of the ohmic resistance measured across PT100 RTDs. Formula: - 100 = C 0.386 Table 4.6: Temperature X Resistance (Pt100) º C 100.00... -
Page 25: Independent Ventilation Cooling
Make sure the cross section and insulation of the connection cables are suitable for the motor current and voltage. The motor must rotate in the rotation direction specified on the nameplate and/or on the plate affixed to the drive Sacrificial Anodes end of the motor. -
Page 26: Connection Diagram
4.7.2 Connection diagram 4.8.3 Base types The connection diagram of the stator, rotor and 4.8.3.1 Concrete base accessories is supplied together with the motor documentation. Concrete bases are the most widely used for the Figure 4.5 shows the single line connection diagram of installation of electric motors. -
Page 27: Anchor Plate Set
0,43 0,50 NOTES 0,65 0,80 When WEG supplies the anchor plate for 1,95 fastening and aligning the motor, the 2,70 dimensional and installation details of the anchor plate are supplied in the specific dimensional drawing of the motor. -
Page 28: Inspection Of Pedestal Bearings
Half of the difference between the dial gauge ATTENTION measurements at the 90º and 270º points represents the horizontal coaxial error. After aligning the set and having assured a These measurements indicate when it is necessary to lift perfect alignment (both hot and cold), the... -
Page 29: Couplings
12. Mount the upper half of the bearing shell and tighten commercial agreement). the fixing bolts of this half to the lower half of the WEG is not liable for damages to the motor, bearing shell, with the torque specified in Table 4.9 associated equipment and installation 13. -
Page 30: Coupling Of Motors Equipped With Sleeve Bearings
4.8.10.3 Coupling of motors equipped with NOTE sleeve bearings If it is not possible to move the shaft, then the shaft position, the shaft forward Folga axial displacement (according to the marks on the shaft), and the axial clearance recommended for the coupling must be considered. -
Page 31: Starting
5 STARTING The type of starting used for synchronous motors is specified during the project and depends on the following factors: Short-circuit capacity of the power supply; Acceptable voltage drop (maximum current with minimum starting voltage); ... -
Page 32: Starting With Reduced Current
5.2 STARTING WITH REDUCED CURRENT If direct online start is not possible, the following starting systems can be used in order to reduce the starting current: With reactor With autotransformer With frequency inverter With soft-starter. -
Page 33: Excitation Circuits
When the field induced current is in the positive 5.3 EXCITATION CIRCUITS direction, the diode bridge will deviate the induced field current with a small voltage drop; The type of excitation circuit used in the asynchronous When the induced field current is in the negative... -
Page 34: Excitation Circuit With Frequency Control
When the induced field current is in the negative 5.3.3 Excitation circuit with frequency control direction, the SCR1 thyristor is initially off. The voltage increases quickly until the controller activates the SCR1, The circuit shown in Figure 5.2 works as follows: and, at this moment, the current of negative direction ... -
Page 35: Excitation Circuit For Ac Exciter
5.3.4 Excitation circuit for AC exciter means of voltage amplitude; The AC exciter phase sequence makes the slip increase The circuit shown in Figure 5.3 used in brushless from 1 to normally 3 at maximum speed. That is why the... -
Page 36: Commissioning
12. Inspect the cooling system. In water-cooled motors, consult WEG. inspect the operation of the radiator water supply system. In motors with forced ventilation, check the rotation direction of the fans;... -
Page 37: Operation
If the motor control system is adjusted for ATTENTION resynchronization after the loss of synchronism, the following criteria must be observed: The noncompliance with the procedures 1. Disconnect the field supply for at least two seconds described in section 6.2 may impair the... -
Page 38: High-Pressure Oil Injection System
In case of overheating, the motor must be shut down 6.3.7 Vibration immediately, bearings and temperature sensors must be Permissible vibration levels must be obtained directly inspected and the causes corrected; from the standard regarding the motor. The motor must operate for several hours until bearing temperatures stabilize within the specified limits;... -
Page 39: Maintenance
Use the device supplied with the of the "Maintenance Plan" of this manual. If reimpregnation motor to lock the shaft. is necessary, consult WEG. If the motor requires reconditioning or The windings may be cleaned with an industrial vacuum replacement of any damaged part, consult cleaner with a non-metallic crevice tool or just a dry cloth. -
Page 40: Re-Impregnation
4. Brush the inside of the pipes carefully with nylon cleaning or inspection, such parts must be corrected with brushes in order to remove residues. If damages to the adequate material (in this case, consult WEG). radiator tubes are found during the cleaning, they must be repaired;... -
Page 41: Diode Replacement
NOTE The current conduction must occur only in the anode- When testing the diodes, observe the polarity cathode direction, i.e. in the of the test terminals regarding the diode condition of direct polarization. polarity. 1. Loosen the flexible cables of the 6 diodes;... -
Page 42: Bearing Maintenance
The lubrication intervals informed on the nameplate ATTENTION consider a 70 °C working temperature of the rolling bearing; It is of fundamental importance that the Based on the operating temperature ranges listed in tightening torque be respected in order to Table 7.3, apply the following correction factors for the... -
Page 43: Type And Amount Of Grease
ATTENTION WEG does not recommend the use of greases different from the original one. It is important to perform a correct lubrication, i.e. to apply... -
Page 44: Bearing Assembly
4. Never use hydraulic oil or mix it with the bearing lubricant oil. NOTE WEG is not liable for the change of grease or for 7.10.2.2 Oil type any damages arising from this change. The type and quantity of the lubricant oil to be used are specified on the nameplate affixed to the motor. -
Page 45: Bearing Operation
Clean the whole bearing externally; viscosity for the bearing operating temperature. The type of Remove the oil completely from the bearing; oil recommended by WEG already considers these criteria; Remove the temperature sensor from the bearing; Insufficient quantity of oil may damage the bearing;... -
Page 46: Sleeve Bearings
The bearings must be lubricated with the specified oil, 7.10.3 Sleeve bearings observing the flow rate informed on their nameplate; All threaded holes that are not used must be closed with 7.10.3.1 Bearing data plugs and no fitting may present leaks. -
Page 47: Sleeve Bearing Operation
7.10.3.6 Sleeve bearing operation 7.10.5 Disassembly/assembly of the bearing temperature sensors The system start, as well as the first hours of operation, must be monitored carefully. Before starting, check: If the oil inlet and outlet tubes (if any) are clean. Clean the tubes by pickling, if necessary;... -
Page 48: Motor Disassembly And Assembly
All the repair, disassembly and assembly services must be performed only by properly qualified and trained professionals; otherwise, equipment damage and personal injury may occur. If any further explanations are necessary, consult WEG. The disassembly and assembly sequence depend on the motor model. -
Page 49: Air Gap Measurment
The difference between the air gap measured in two points diametrically opposed must be less than 10% of the average air gap. 8.5 SPARE PARTS WEG recommends keeping in stock the following spare parts: DE and NDE rolling bearings;... -
Page 50: Maintenance Plan
9 MAINTENANCE PLAN The maintenance plan described in Table 9.1 is only referential, and the intervals between each maintenance intervention may vary according to the motor location and operating conditions. For associated equipment, such as the water supply unit or control and protection system, it is necessary to refer to their specific manuals. -
Page 51: Abnormalities, Causes And Solutions
10 ABNORMALITIES, CAUSES AND SOLUTIONS NOTE The instructions of Table 10.1 present only a basic list of abnormalities, causes and corrective actions. In case of questions, consult WEG. Table 10.1: Basic list of abnormalities, causes and corrective actions ABNORMALITY POSSIBLE CAUSES CORRECTION ... - Page 52 ABNORMALITY POSSIBLE CAUSES CORRECTION Interruptions or failure in the insulation of the Repair the rotor winding rotor winding Hot spots in the rotor Motor overexcited Check and correct the exciting current Heating in the damper winding Correct voltage unbalance;...
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Page 53: Declaration Of Conformity
11 DECLARATION OF CONFORMITY 11866576 Installation, Operation and Maintenance Manual – Synchronous Motors – S Line – Brushless – Horizontal l 53... -
Page 54: Environmental Information
These materials are recyclable or reusable and must be properly disposed according to the current regulations of each country. All the wood used in the packaging of WEG motors comes from reforestation and receives anti-fungal treatment. 12.2 PRODUCT... -
Page 55: Warranty Term
The repair and/or replacement of parts or components, when effected by WEG within the Warranty period do not give Warranty extension, unless otherwise expressed in writing by WEG. This constitutes WEG's only warranty in connection with this sale and is in lieu of all other warranties, expressed or implied, written or oral. - Page 56 NOTES l Installation, Operation and Maintenance Manual – Synchronous Motors – S Line – Brushless – Horizontal 11866576...
- Page 57 11866576 Installation, Operation and Maintenance Manual – Synchronous Motors – S Line – Brushless – Horizontal l 57...
- Page 58 Installation, Operation and Maintenance Manual – Synchronous Motors – S Line – Brushless – Horizontal 11866576...
- Page 59 WEG NETHERLANDS * WEG INDUSTRIAS VENEZUELA C.A. FRANCE WEG FRANCE SAS * Sales Office of WEG Benelux S.A. Hanzepoort Centro corporativo La Viña Plaza, 23C, 7575 DB Oldenzaal Cruce de la Avenida Carabobo con la calle ZI de Chenes - Le Loup13 / 38297 Saint Phone: +31 541 571090 Uzlar de la Urbanización La Viña / Jurisdicción...