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Related Manuals for WEG GPW Series
Summary of Contents for WEG GPW Series
- Page 1 Motors I Automation I Energy I Transmission & Distribution I Coatings Synchronous Alternators Models: GPW, GSW GPA, GSA GPF, GSF Installation, Operation and Maintenance Manual Installation, operation and maintenance manual...
- Page 2 Installation, operation and maintenance manual...
- Page 3 Installation, Operation and Maintenance Manual Document number: 12139384 Models: GPW, GPA, GPF, GSW, GSA, GSF Language: English Revision: 2 July 2015 Installation, operation and maintenance manual...
- Page 4 Installation, operation and maintenance manual...
- Page 5 1. Reproduction of the information contained in this manual, in whole or in part, is permitted provided that the source is mentioned; 2. If this manual is lost, a copy in electronic format may be obtained at www.weg.net or you may request WEG a printed copy.
- Page 6 Installation, operation and maintenance manual...
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Page 7: Table Of Contents
INDEX INTRODUCTION ....................11 SAFETY WARNINGS IN THE MANUAL ..................11 TERMINOLOGY ........................... 11 GENERAL INSTRUCTIONS ................12 QUALIFIED PEOPLE ........................12 SAFETY INSTRUCTIONS ......................12 ... - Page 8 4.6.3 Diode protection ......................23 4.6.4 Protections on the voltage regulator ................23 4.6.4.1 Protection against underfrequency ................23 VOLTAGE REGULATOR ......................23 AUXILIARY EXCITER ........................23 ...
- Page 9 TIGHTENING TORQUES ......................33 GENERAL RECOMMENDATIONS ....................33 MAINTENANCE PLAN ..................34 TROUBLESHOOTING ..................35 ELECTRICAL ANOMALIES ......................35 MECHANICAL ANOMALIES ......................36 ENVIRONMENTAL INFORMATION ....................36 ...
- Page 10 Installation, operation and maintenance manual...
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Page 11: Introduction
Contact WEG if it is necessary further explanations. All procedures and standards contained in this manual must be observed in order to ensure the correct operation of the alternator and the safety of the professionals involved in its operation. -
Page 12: General Instructions
In these situations, accessible places. WEG is not liable for damage that may occur in the Also, observe: alternator, not characterizing the product warranty as the ... -
Page 13: Receiving, Storage And Handling
Any damage must be photographed, documented and reported immediately to The alternator should be stored in a dry place, free from the carrier, the insurer and WEG. Failure to floods and vibration. observe this procedure will void the warranty. Repair any damage in the package before storing the alternator, which is needed to ensure proper storage conditions. -
Page 14: Storage In Sheltered Environment
If applicable of these requirements is not met in the storage place, WEG suggests that additional protections be 3.2.3.4 Insulation resistance incorporated to the package of the alternator during the... -
Page 15: Terminal Box
3.2.3.7 Terminal box 3.2.3.9.2 Bearing lubrication When the alternator winding insulation resistance is Use the specified lubricant to lubricate the bearing. measured, the main terminal box and the other terminal The information on bearings and lubricants, as well as the boxes must be inspected, considering especially the procedure for lubrication, are described in item 6.5 of this... -
Page 16: Maintenance Plan During Storage
3.2.3.12 Maintenance Plan during storage During the storage period, the alternator maintenance must be performed and recorded according to the plan described in Table 3.1. Table 3.1: Storage plan Before Every two Every six Every Monthly commission NOTE! months... -
Page 17: Handling
3.3 HANDLING Proper handling Figure 3.1: Proper handling Improper handling Figure 3.2: Improper handling The alternator was designed with eyebolts for lifting. These eyebolts are designed to lift only the alternator; additional loads are not permitted; Cables and lifting devices must be appropriate. -
Page 18: Installation
4 INSTALLATION 4.1 INSTALLATION LOCATION 4.4 COOLING The alternator must be installed in easily accessible Open alternators locations, which allow the execution of periodic inspections, local maintenance and, if necessary, the removal of the alternator for external services. The following environmental features must be provided: ... -
Page 19: Characteristics Of The Cooling Water
4.4.1 Characteristics of the cooling water 4.4.2 Heat exchangers for applications with sea water Always use treated industrial water with the following characteristics: ATTENTION ph: 7.0 to 8; Chlorides: < 50 ppm; In the case of heat exchangers for applications ... -
Page 20: Insulation Resistance
The meter (megohmmeter) must be connected between 4.5 INSULATION RESISTANCE the alternator frame and the winding. The frame must be grounded and the three phases of the stator winding 4.5.1 Safety instructions remain connected to the neuter point, as shown below:... -
Page 21: Minimum Insulation Resistance
08 hours. Check if the insulation resistance achieved is within the acceptable values, in accordance with Table 4.2, otherwise contact WEG. 4.5.6 Polarization index The polarization index (I.P.) is typically defined by the ratio between the measured insulation resistance in 10... -
Page 22: Temperature Limits For The Windings
4.6.1.3 Alarm and shutdown temperatures NOTE The alarm and shutdown temperatures must be set as The RTD-type thermoresistance allows low as possible. These temperatures can be determined monitoring the absolute temperature. With based on the results of tests or through the alternator this information, the relay can perform the operating temperature. -
Page 23: Diode Protection
4.8 AUXILIARY EXCITER In case of failure of these components, they must be replaced. WEG alternators GP_ model are manufactured with the auxiliary exciter mounted in its back, which is responsible 4.6.4 Protections on the voltage regulator for feeding the power circuit of the voltage regulator and keeping the power supply of the voltage regulator, even 4.6.4.1... -
Page 24: Terminal Identification
ATTENTION ATTENTION In order to change the operating frequency Should ensure that all CTs are correctly of the voltage regulator, refer to its manual. connected to the system or with the secondary short-circuited when the alternator go into operation. -
Page 25: Coupling
The measurement is made in four points at 90º, with the alternator. two half-couplings rotating together so as to eliminate the WEG is not responsible for damages to the effects of surface irregularities on the dial gauge contact alternator, associated equipment and surface. -
Page 26: Start-Up
5 START-UP After following the procedures described above and 5.1 PRELIMINARY INSPECTION solving any problems that may have occurred (see item 9), turn off the set. Before the first start-up or after a long time out of With the alternator completely stopped, connect the... -
Page 27: Radiator
5.2.3 Radiator 5.4 PARALLEL ALTERNATORS In alternators with air-water heat exchanger, the following 5.4.1 Parallel to each other and/or to the line procedures must be followed during the first start-up: Minimum requirements for operation of the alternators in... -
Page 28: Maintenance
The terminals in the terminal box must be clean, free of rust, in perfect mechanical condition and without deposits NOTE of grease or verdigris. WEG is not responsible for the change of 6.3 NOISE grease or for any damages arising from the exchange. -
Page 29: Relubrication Of Bearing With The Alternator Operating
6.5.2 Bearing ATTENTION It is important to clean the grease nipples prior ATTENTION to lubrication so as to prevent foreign materials from being dragged into the bearing. For safety reasons, the change of bearings must be done with the alternator disconnected from the driving machine. -
Page 30: Diode Replacement
6.6.5 Varistor replacement NOTE In order to replace the varistor, WEG recommends that When testing the diodes, observe the polarity you observe the following recommendations: of the test terminals in relation to the diode 1. Replace the damaged varistor by a new varistor polarity. -
Page 31: Alternator Out Of Operation
3. Remove the heads, keeping the screws, nuts and The types of shaft grounding used on WEG alternators are: washers and seals (gaskets) in a safe place; 4. Brush the tubes inside carefully with nylon brushes for 6.10.1 Grounding with internal brush... -
Page 32: Complete Checkup
ATTENTION The brush must be monitored constantly during operation, and at the end of its useful life, it must be replaced by another of the same quality (grain). In order to ensure a perfect contact of the grounding brush shaft, this oil, and any residue between the shaft and the brush, must be removed before placing the alternator start-up. -
Page 33: Disassembly And Assembly Of The Alternator
NOTE 7.3 SPARE PARTS The resistance class is usually indicated on the head of the hex screws. WEG recommends keeping in stock the following spare parts: DE bearing; 7.5 GENERAL RECOMMENDATIONS NDE bearing;... -
Page 34: Maintenance Plan
8 MAINTENANCE PLAN The maintenance plan detailed in Table 8.1 is referential, considering that the intervals between each maintenance intervention may vary according to the alternator location and operation conditions. For associated equipment, such as the voltage regulator and control / protection panel, the specific manuals must also be consulted. -
Page 35: Troubleshooting
9 TROUBLESHOOTING Below are listed some anomalies that may occur on the alternator in operation, as well as the correct procedure for verification and correction. 9.1 ELECTRICAL ANOMALIES THE ALTERNATOR WILL NOT EXCITE CAUSE CORRECTIVE PROCEDURE Power supply of voltage regulator with faulty Verify the power supply of the voltage regulator ... -
Page 36: Mechanical Anomalies
WEG alternators comes from reforestation long service life; however, when it must be disposed, and receives anti-fungal treatment. WEG recommends that the materials of the packaging and of the product be properly separated and sent for recycling. The non-recyclable materials must be properly disposed according to the environmental regulations, i.e., in... -
Page 37: Warranty
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 38 NOTES Installation, operation and maintenance manual...
- Page 39 WEG Group - Energy Business Unit Jaraguá do Sul - SC - Brazil Phone: 55 (47) 3276-4000 energia@weg.net www.weg.net Installation, operation and maintenance manual...