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Summary of Contents for WEG GTK Series
- Page 1 Three-Phase Synchronous Generators GTK line Installation, Operation and Maintenance Manual...
- Page 3 Installation, Operation and Maintenance Manual Model: GTK Document: 16058176 Language: English Revision: 01 August 2024...
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Page 5: Dear Customer
If you need any further information, please contact WEG. Always keep this manual close to the generator, so that it can be consulted whenever necessary. -
Page 7: Table Of Contents
INDEX INTRODUCTION ......................11 1.1SAFETY WARNINGS IN THE MANUAL ..................... 11 GENERAL INSTRUCTIONS ..................12 2.1QUALIFIED PERSONNEL ........................12 2.1.1 Explosive atmospheres.........................12 2.2SAFETY INSTRUCTIONS ........................12 2.3GENERATORS APPLIED IN EXPLOSIVE ATMOSPHERES ..............12 2.3.1 General Precautions..........................13 2.3.2 Additional Precautions…………………………………………………………………………………………...13 2.4STANDARDS ............................13 2.5ENVIRONMENTAL CONDITIONS ...................... - Page 8 4.5.1.2 Additional information ......................22 4.6MECHANICAL ASPECTS ........................23 4.6.1 Alignment………………………………………………………………………………………......23 4.6.2 Coupling………………………………………………………………………………………......23 4.6.2.1 Direct coupling ........................23 4.6.2.2 Belt and pulley coupling ..................... 23 COMMISSIONING ...................... 25 5.1PRELIMINARY INSPECTION ......................25 5.2FIRST STARTING ..........................25 5.2.1 Starting procedure………………………………………………………………………………………..25 5.3OPERATION ............................26 5.3.1 General………………………………………………………………………………………......26 5.3.2...
- Page 9 13 WARRANTY TERM ..................... 40 16058176 Installation, operation and maintenance manual – Three-Phase Synchronous Generators – GTK line - Ex - Horizontal l 9...
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Page 11: Introduction
If any additional explanation about generators with major special features is necessary, consult WEG. All procedures and standards contained in this manual must be observed in order to ensure proper operation of the generator and the safety of the personnel involved in its operation. -
Page 12: General Instructions
2 GENERAL INSTRUCTIONS All the personnel involved with the assembly, operation or maintenance of electrical installations must be permanently 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: General Precautions
ABNT NBR IEC 60079-14 – Atmosferas Explosivas – 2.4 STANDARDS Parte 14 - Seleção e montagem de instalações elétricas; The generators are specified, designed, manufactured and EN/IEC 60079-14 – Electrical apparatus for gas tested according to the standards described in Table 2.1. explosive atmospheres –... -
Page 14: Receiving, Handling And Storage
Lifting and lowering must be done gently. Any damage must be photographed, Never lift the generator by the shaft. documented and reported immediately to the carrier, the insurer and WEG. The non-communication of this damage will NOTES void the warranty. ... -
Page 15: Extended Storage
If any of these requirements is not met in the storage site, WEG suggests that additional protections be added to the generator package during the storage period, as follows: 16058176 Installation, operation and maintenance manual – Three-Phase Synchronous Generators – GTK line - Ex - Horizontal l 15... -
Page 16: Exposed Machined Surfaces
WEG Authorized Repair rotor must be rotated at least 10 Shop or to WEG own factory, in order to perform a complete turns at 30 rpm to circulate the complete predictive maintenance. -
Page 17: Maintenance Plan During Storage
3.3.3.9 Maintenance plan during storage During the storage period, the generator 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 Inspect the humidity and temperature conditions Inspect for insect infestation signs... -
Page 18: Installation
4 INSTALLATION 4.1 INSTALLATION SITE Before measuring the stator winding insulation resistance: Disconnect all connections to the stator terminals; Disconnect and insulate all CTs and PTs (if any); Electric generators must be installed in easily accessible Ground the generator frame; ... -
Page 19: Additional Information
4.3.4 Additional Information 4.3.7 Recommended Minimum Values According to IEEE-43 Standard, the recommended ATTENTION minimum values for winding insulation resistance (R.I.) and Polarization Index (I.P.) are shown in Table 4.3: After measuring the insulation resistance, ground the tested winding in order to Table 4.3: Minimum R.I. -
Page 20: Temperature Sensors For Explosive Atmospheres
Temperature limits for the windings The generator protection devices are The temperature of the hottest spot of the winding must listed in the WEG drawing – Wiring be kept below the limit of the insulation thermal class. diagram. The total temperature is obtained by the sum of the... -
Page 21: Temperature And Ohmic Resistance Of The Pt100 Thermoresistance
4.4.2.4 Temperature and ohmic resistance of the PT100 thermoresistance Table 4.5 shows the temperature as a function of the ohmic resistance measured across PT100 RTDs. Formula: Ω - 100 = °C 0.386 Table 4.5: Temperature X Resistance (Pt100) º C 100.00 100.39 100.78... -
Page 22: Electrical Aspects
In order to operate the generator in the rotation direction opposite to the specified, Check the rated characteristics on the consult WEG. generator nameplate. Dimension the power cables according to the generator rated current, considering the... -
Page 23: Mechanical Aspects
4.6 MECHANICAL ASPECTS 4.6.2 Coupling 4.6.2.1 Direct coupling 4.6.1 Alignment Only appropriate couplings should be used, suitable The generator must be accurately aligned with the driven exclusively for the torque transmission without causing machine, particularly in cases of direct coupling. transversal forces. - Page 24 When specific pulleys are required, contact WEG in order to insure a correct designing. l Installation, operation and maintenance manual – Three-Phase Synchronous Generators – GTK line - Ex - Horizontal 16058176...
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Page 25: Commissioning
ATTENTION In order to invert the rotation direction of generators with single direction, it is necessary to consult WEG. 14. Keep the generator rotating at rated speed and write down the bearing temperatures at 1-minute intervals until they become constant. Any sudden increase in bearing temperature indicates lubrication or friction surface abnormality;... -
Page 26: Operation
When the customer sends the half coupling to down immediately for the inspection of bearings and WEG, the generator is balanced with the half coupling mounted on the shaft. Otherwise, according to the temperature sensors, and the correction of possible standards above, the generator is balanced with half-key causes;... -
Page 27: Shaft Vibration Limits
Switch off the high-pressure oil injection system (if operation). any); The maximum vibration levels met by WEG for Switch off the oil circulation system of the bearings (if running generators are given in the wiring diagram. any);... -
Page 28: Maintenance
In case any fault is detected, consult WEG. with a damp cloth, for instance, in order to Ensure that all cables are properly connected and that prevent the generation of electrostatic terminal fixation components are duly tightened. -
Page 29: Insulation Resistance
6.3.5 Insulation Resistance 6.7 BEARING MAINTENANCE The insulation resistance must be measured after the 6.7.1 Bearings completion of all of the maintenance procedures. The generators GTK are endowed of ball bearings, whose characteristics are indicated in the table below: ATTENTION Estimated Before putting the generator back into FRAME... -
Page 30: Direction Of Rotation
6.9 DIRECTION OF ROTATION 6.11 DIODES REPLACEMENT The generator GTK can operate in both direction of rotation, however, the phase’s sequence is adjusted for the clockwise rotation (seen in the drive end side). According to the standard VDE 0530, the generators terminals are marked of such a form, that terminals sequence 1, 2 and 3 (R, S, and T) coincides with the phase’s sequence, when the rotation direction is... -
Page 31: Drying Of Windings
6.12 DRYING OF WINDINGS It is recommended that this task be undertaken carefully and by qualified personnel. Disassemble the generator and carries only the frame with the stator winding or the rotor without the bearings. The complete drying is done during 7 hours in an oven at 150 ºC. -
Page 32: Generator Disassembly And Assembly
7.5 PARTS The repair services on generators applied in explosive atmospheres must be carried out only by qualified professionals authorized by WEG to perform such jobs. 7.2 DISASSEMBLY The following precautions must be taken when disassembling the electric generator: 1. Always use proper tools and devices to disassemble the generator;... -
Page 33: Maintenance Plan
8 MAINTENANCE PLAN The maintenance plan described in Table 8.1 is only referential, and the intervals between each maintenance intervention may vary according to the generator location and operating conditions. For the associated equipment, such as the water supply unit or control and protection system, it is necessary to refer to their specific manuals. - Page 34 INSPECTIONS EVERY 2 YEARS (ACCORDING TO NBR IEC60079-17 STANDARD) Ex “e” Ex “ec” Ex “t” Ex GENERATORS Degree of inspection CHECK WHETHER: EQUIPMENT The equipment is appropriate for the requirements of EPL / Installation location zone The equipment group is correct The equipment temperature class is correct (only for gas) The maximum surface temperature of the equipment is correct The equipment protection degree (IP code) is appropriate for the protection level...
- Page 35 INSPECTIONS EVERY 2 YEARS (ACCORDING TO NBR IEC60079-17 STANDARD) Ex “p” Generators Degree of inspection CHECK WHETHER: EQUIPMENT The equipment is appropriate for the requirements of EPL / installation local zone The equipment group is correct The equipment temperature class or the surface temperature is correct The identification of the equipment circuit is correct The identification of the equipment circuit is available The enclosure, the glass parts and seals, and/or glass/metal sealing compounds are satisfactory...
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Page 36: Abnormalities, Causes And Solutions
9 ABNORMALITIES, CAUSES AND SOLUTIONS NOTE The instructions of Table 9.1 present only a basic list of abnormalities, causes and corrective actions. In case of questions, consult WEG. Table 9.1: Basic list of abnormalities, causes and corrective actions ABNORMALITY CORRECTION ... -
Page 37: Declaration Of Conformity Ex
10 DECLARATION OF CONFORMITY Ex 16058176 Installation, operation and maintenance manual – Three-Phase Synchronous Generators – GTK line - Ex - Horizontal l 37... - Page 38 l Installation, operation and maintenance manual – Three-Phase Synchronous Generators – GTK line - Ex - Horizontal 16058176...
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Page 39: 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 generators comes from reforestation and receives anti-fungal treatment. -
Page 40: Warranty Term
There are no implied warranties of merchantability or fitness for a particular purpose that apply to this sale. 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. - Page 41 NOTES 16058176 Installation, operation and maintenance manual – Three-Phase Synchronous Generators – GTK line - Ex - Horizontal l 41...
- Page 42 l Installation, operation and maintenance manual – Three-Phase Synchronous Generators – GTK line - Ex - Horizontal 16058176...
- Page 43 +55 47 3276.4000 energia@weg.net Jaraguá do Sul - SC - Brazil Cod. 16058176 | Rev. 01 | Date (m/y): 08/2024...
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