alpha generator maintenance manual · ge energy power conversion author : vellingiri, radhakrishnan...
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GE Energy Power Conversion
Author : Vellingiri, Radhakrishnan DocRef : File : Maintenance Schedule Checklist for Alpha Generators.docx ©COPYRIGHT 2014 GE ENERGY (USA), LLC AND/OR ITS AFFILIATES. All rights reserved. GE Energy Proprietary Technical Information
CLASS II (GE INTERNAL NON-CRITICAL)
Revision : 000 Date : 2017-01-02 Page : 1/23
EXTERNAL REPORT
ON
ALPHA GENERATOR MAINTENANCE MANUAL
Change Number: Change Number Author: Vellingiri, Radhakrishnan Design Office: Reason for new issue: Initial Issue ©COPYRIGHT 2014 GE ENERGY (USA), LLC AND/OR ITS AFFILIATES. All rights reserved. The information contained herein is GE Energy Power Conversion Proprietary Technical Information that belongs to the General Electric Company, GE Energy (USA), LLC and/or their affiliates, which has been provided solely for the express reason of restricted private use. All persons, firms, or corporations who receive such information shall be deemed by the act of their receiving the same to have agreed to make no duplication, or other disclosure, or use whatsoever for any, or all such information except as expressly authorized in writing by the General Electric Company, GE Energy (USA), LLC and/or its affiliates.
GE Energy Power Conversion
Author : Vellingiri, Radhakrishnan DocRef : File : Maintenance Schedule Checklist for Alpha Generators.docx ©COPYRIGHT 2014 GE ENERGY (USA), LLC AND/OR ITS AFFILIATES. All rights reserved. GE Energy Proprietary Technical Information
CLASS II (GE INTERNAL NON-CRITICAL)
Revision : 000 Date : 2017-01-02 Page : 2/23
CONTENTS
1. INTRODUCTION .............................................................................................................................................. 3
1.1 TYPICAL ALPHA MACHINE DIAGRAM ....................................................................................................................... 4
2. SAFETY INSTRUCTIONS ................................................................................................................................. 4
3. EQUIPMENT DATA .......................................................................................................................................... 7
4. SCHEDULE FOR MAINTENANCE ................................................................................................................... 8
4.1 VISUAL INSPECTION (CUSTOMER MAINTENANCE) ............................................................................................ 8 4.2 TORQUE SETTING FOR JOINTS ................................................................................................................................... 9 4.3 CLEANING ............................................................................................................................................................................ 9 4.4 WINDINGS TEST ................................................................................................................................................................ 9 4.4.1 INSULATION IR TESTING (IR) ....................................................................................................................................... 9 4.4.2 STATOR IR TEST ............................................................................................................................................................. 10 4.4.4 POLARISATION INDEX ................................................................................................................................................ 10
4.4.5 Rotor Circuit IR tests ........................................................................................................................................... 10 4.4.6 Exciter Field and PMG Stator IR Tests ........................................................................................................ 10
4.5 STATOR AND ROTOR AIRGAP MAINTENANCE TEST ....................................................................................... 10 4.6 BEARING INSULATION TEST ...................................................................................................................................... 11
4.6.1 To Check the Bearing Insulation on a Stationary Machine: ............................................................. 11 4.6.2 To Check the Bearing Insulation on a Running Machine: ................................................................. 11
4.7 EXCITER AND PMG AIRGAP MAINTENANCE TEST ........................................................................................... 11 4.8 COOLER MAINTENANCE CHECK- CACW (IC8A1W7) ...................................................................................... 12 4.9 CHECKING THE TIGHTNESS OF THE HIGH VOLTAGE CONNECTIONS ................................................... 12
5. MAINTENANCE SCHEDULE ......................................................................................................................... 14
6. RECOMMENDED TOOLS .............................................................................................................................. 15
7. GLOSSARY...................................................................................................................................................... 16
8. APPENDIX A - MAINTENANCE REPORT ..................................................................................................... 17
9. APPENDIX B – ESTIMATED HOURS ............................................................................................................ 21
10. EMERGENCY CONTACT DETAILS ............................................................................................................... 22
11. MODIFICATION RECORD ............................................................................................................................. 23
GE Energy Power Conversion
Author : Vellingiri, Radhakrishnan DocRef : File : Maintenance Schedule Checklist for Alpha Generators.docx ©COPYRIGHT 2014 GE ENERGY (USA), LLC AND/OR ITS AFFILIATES. All rights reserved. GE Energy Proprietary Technical Information
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1. INTRODUCTION
This document summarises the scope of scheduled maintenance work to be carried for Alpha Generators
for the specification mentioned below ,
GENERAL INSTRUCTION
Machines in the Alpha range are of box frame, salient-pole construction with brushless excitation and a PMG
for the AVR power supply.
All the items making up an Alpha machine are fixed to the box frame, which is the main structural member.
It carries the end brackets and bearings, the stator core pack, with a cooler mounted on the top. The exciter
and PMG stators are fixed to a bracket mounted on the end bracket at the non-drive end (NDE). Terminals
are mounted off the frame, either all on one side or lines one side and neutrals on the other, as required.
Accommodation for current transformers may be provided.
Alignment of the various components of the machine is achieved in the factory by accurate machining of
the spigots by which the components are located. This alignment is meant to last for the life of the machine
and no adjustment is possible. Alignment of the exciter stator and the PMG stator to give the correct airgaps
is by shims under the stator feet.
ALPHA Range
Output Range 5000 TO 75,000 ( up to 60MW 0.8p.f)
Voltage up to 15,000 V
Frequency 50 Hz or 60 Hz
Cooling Air or Water cooled (CACA or CACW)
No of Poles 4
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The box frame has four mounting feet suitable for bolting and doweling to the structure on which the
machine is to be mounted.
1.1 TYPICAL ALPHA MACHINE DIAGRAM
Fig 1: Alpha Generator
2. SAFETY INSTRUCTIONS
To prevent accidents, the safety measures and devices implemented must be compliant with the
regulations applicable at the place of work. All rules and regulations applicable in the country of use, safety
rules specific to the site, instructions given in this manual and specific safety instructions supplied with the
machine must be strictly adhered to.
When working on the machine, the following safety warnings should be adhered to:
WARNING
TAKING THE APPROPRIATE ACTIONS TO ENSURE THAT SITE PERSONNEL WHO ARE PERFORMING INSTALLATION, COMMISSIONING AND MAINTENANCE HAVE BEEN TRAINED IN PROPER SITE PROCEDURES FOR WORKING WITH AND AROUND GE SUPPLIED EQUIPMENT PER SAFE SITE WORK PRACTICES ARE THE END USERS RESPONSIBILITY.
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WARNING
PRIOR TO STARTING THE MACHINE, ENSURE THAT ALL TEMPORARY FITTINGS ARE REMOVED TO PREVENT DAMAGE TO THE MACHINE OCCURRING.
WARNING
BEFORE STARTING ANY MAINTENANCE, WORK ENSURE THAT ALL ELECTRICAL CIRCUITS TO THE MOTOR ARE SWITCHED OFF WITH ISOLATORS, CIRCUIT BREAKERS LOCKED IN THE OPEN (OFF) POSITION.
WARNING
PROPER LOCKOUT/TAGOUT OF ENERGY SOURCES PRIOR TO MAINTENANCE PER SAFE SITE WORK PRACTICES IS THE END USERS RESPONSIBILITY.
WARNING
VERIFYING PROPER GROUNDING OF SKIDS / EQUIPMENT TO PLANT GROUNDING SYSTEM IS THE END USERS RESPONSIBILITY.
WARNING
PROPER LIFTING TECHNIQUES / EQUIPMENT / PROCEDURES PER SAFE SITE WORK PRACTICES ARE THE END USERS RESPONSIBILITY.
WARNING
PROPER LOCKOUT/TAGOUT OF ENERGY SOURCES PRIOR TO MAINTENANCE PER SAFE SITE WORK PRACTICES IS THE END USERS RESPONSIBILITY.
CAUTION
Ensuring proper Personal Protective Equipment is available and used is the end users responsibility.
CAUTION
Implementation of a hearing conservation program to ensure personnel are not exposed to high noise levels, per Safe Site Work Practices are the end users responsibility.
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CAUTION
Proper housekeeping to maintain work environment free of slip / trail / fall hazards per Safe Site Work Practices are the end users responsibility.
CAUTION
Ensuring the equipment is returned to proper condition and all temporary tools, tooling and materials are properly removed from the machine after maintenance work is the end users responsibility.
Symbol Key
Electrical hazards
Ground connection point
KEEP AWAY
Stay at a safe distance
EC protection marking relative to an explosive atmosphere
The information and instructions relating to safety given above must be strictly observed at all times. Further safety requirements specific to the operating environment and country must also be adhered to.
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3. EQUIPMENT DATA
Machine
AC Machine frame size and poles
Serial Number
Specification
Year of Manufacture
Rating (kVA)
Voltage (V)
Frequency (Hz)
Rated power factor
Rated line current (Amps)
Speed (rev/min)
Enclosure IP
Cooling Type
Cooling IC
Airgap (mm)
Rotor Type
Rotor Telemetry Equipment
Machine Mounting
Terminal Type
Winding resistance at 75oC
Stator (Ω/phase)
Rotor (Ω)
Bearings
Type DE :
NDE :
Make RENK
Size DE :
NDE :
Float (mm) DE : None
NDE : None
Exciter
Exciter Type
Frame size
Rotating armature resistance at 20oC between terminals (Ω)
Field resistance at 20oC (Ω)
Airgap (mm)
Excitation for:
Rated full load on the machine (A)
Rated voltage on no-load (A)
Rectifier diode references and quantities
PMG for AVR power supply
Frame size
Open Circuit Output voltage (V)
Full Load Current (A)
Frequency (Hz)
GA Drawing reference
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Schematic connection diagram reference
Automatic voltage regulator (AVR)
Make
Type -
Generator Noise Level
Mean Sound Pressure Level measured at 1 metre from the machine surface (dB(A))
4. SCHEDULE FOR MAINTENANCE
It is important that a system of regular maintenance is adopted to ensure the efficient operation of the machine. The frequency with which maintenance should be done can only be decided from consideration of the site conditions and the protection grade (IP number) of the machine. Dirty conditions with an open machine will need more frequent inspection and cleaning than a closed-circuit machine in a clean environment. Machines should not be dismantled more often than necessary. It may be possible under good conditions to reduce the frequency of inside inspection and cleaning to once every five years. It is undesirable for the interval to be longer.
4.1 VISUAL INSPECTION (CUSTOMER MAINTENANCE)
Inspection of the machine at standstill should be made at intervals of approximately three months if the machine is in use daily. At each inspection:
i) Check for excessive vibration.
ii) Check all visible fixings and bolts, including those holding the cover to the baseplate, the cooler to the cover (if any) and the exciter cover to the base.
iii) Check the bearing temperatures and oil levels. If the bearings are supplied with oil from the prime mover system, check the oil flow.
iv) Look for leakage of oil from the bearings along the shaft. Clean around the bearing area and if the machine has cartridge-mounted bearings, clean around the bearing insulation at the cartridge feet.
v) Check the winding temperatures. Check the cooling air temperatures in and out.
vi) Check the water flow to the cooler.
vii) If the machine has a CACW cooler, look for signs of leakage at the pipe joints of the CACW cooler. If there are emergency doors, open them and look inside with a light for signs of leaks.
viii) If the machine is duct-ventilated, check the condition of the filters.
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Note:
All remaining maintenance schedules are carried out by a GE representative for safety reasons and to ensure full compliance with recommended maintenance routines.
The GE representative shall have access to a detailed maintenance procedure to be followed for each line of preventative maintenance. Below is a brief overview of the schedules to be followed
Customer support is required to ensure full and safe access is allowed.
4.2 TORQUE SETTING FOR JOINTS
Experience shows in Generator vibration, hogging and sagging motions can have an effect on electrical
joints. This procedure will ensure recommended settings are maintained.
4.3 CLEANING
Adherence to this basic Maintenance procedure will ensure the life of the Generator is maintained to its
designed lifecycle.
4.4 WINDINGS TEST
The Insulation Resistance Test measures the integrity of the generator's winding insulation, and therefore
the likelihood of developing a ground. A test voltage is applied to the generator and the current flow
required maintaining that voltage is measured over a period of time
4.4.1 INSULATION IR TESTING (IR)
Insulation resistance testing puts a qualitative value on the condition of conductor insulation and the
internal insulation of different pieces of electrical equipment. As an insulation resistance test begins, apply
a direct current (dc) voltage to the conductor or equipment under test. Some current flows out of the test
equipment into the conductor and begins to charge the insulation. This current is called capacitive charging
current and can be observed on the meter face.
Testing the integrity of insulation requires measuring its resistance to current flow across it. A high level of
resistance means that very little current is escaping through the insulation. Conversely, a low level of
resistance indicates a significant amount of current may be leaking through and along the insulation.
As the charging current first begins to build, the resistance reading on the meter face will indicate a low
value. Think of this as electrons beginning to flow into and become stored in the insulation itself. The more
current that flows out of the test set, the lower the megohm reading. The insulation becomes charged
quickly and the meter indication will begin to settle out at a higher megohm value—provided the quality of
the insulation is good!
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4.4.2 STATOR IR TEST
In Stator Excessive heat or cold, moisture, vibration, dirt, oil, and corrosive vapors can all contribute to
deterioration. For this reason, routine insulation testing in Stator is necessary.
However, testing can help you determine whether the insulation is performing at an effective and safe
level. Routine testing can identify problems before they result in injury or Stator equipment failure.
If the Stator insulation resistance is less than the calculated minimum resistance, clean and dry the Stator.
Then, repeat the test. If resistance is still low, replace the Stator.
Insulation Test is subject to many elements that can cause it to perform at a less-than-acceptable level.
See the table for recommendations of the International Electrical Testing Association . Make sure you
choose an insulation resistance tester that will supply the needed output test voltage.
4.4.4 POLARISATION INDEX
A Polarization Index (PI) test is generally performed at the same voltage as the Insulation Resistance (IR)
test. Where the IR test is performed for a period of one minute, the PI test is performed over a period of ten
minutes. This gives the absorption (polarization) current ample time to decay, and reveals a more detailed
indication of the total leakage and conduction current. As such, PI is a good indication of winding
contamination, moisture ingress (leakage currents), and/or bulk insulation damage (conduction currents).
Polarization Index testing is generally performed with an Insulation Resistance (IR) test set (commonly
known as a Megger. PI results for suitability for service or implementation of high voltage testing is widely
accepted as 2:1 or greater. Any reading lower than this minimum value is a concern. The windings would
be presumed to be wet, contaminated, and/or compromised in some fashion. Conversely, vintage windings
(varnish cambric, asphalt mica, etc.) may produce an unusually high Polarization Index ratio. The insulation
may be void of binder content, thus making it dry and brittle. If the polarization Index is reduced because
of dirt or excessive moisture, it can be brought up to a satisfactory value by cleaning and drying to remove
moisture
4.4.5 ROTOR CIRCUIT IR TESTS
If an insulation breakdown is indicated, clean and dry the Rotor then repeat the test. Replace the Rotor if it
Fails the second test (after cleaning and drying)
4.4.6 EXCITER FIELD AND PMG STATOR IR TESTS
Insulation resistance of a clean and dry winding with secure insulation will change dramatically over the life of the unit. Insulation resistance will start at a high value. drop to 10 to 100 times the minimum value over the first year of service, and then slowly decline until the end of service life is reached.
4.5 STATOR AND ROTOR AIRGAP MAINTENANCE TEST
Stator and Rotor airgap maintenance test conducted periodic to gained results in increased levels of vibration due to the uneven magnetic pull it creates between the circumference of the rotor and stator bore. Over time, these elevated levels of vibration can result in excessive movement of the stator winding, which could lead to increased friction and eventually a turn-to-turn, coil-to-coil, or ground fault. Increases in
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mechanical vibration accelerate bearing failure, which could seize the shaft and overheat the windings or allow additional movement of the shaft leading to a rotor/stator rub. The uneven magnetic stresses applied to the rotor, coupled with the increased vibration, will also contribute to mechanical looseness developing in the rotor assembly. Risk of rotor pull-over increases exponentially with the amount of air gap eccentricity.
4.6 BEARING INSULATION TEST
Insulated bearings that can be used for turbine generators. Tests conducted under various operating conditions showed high insulation levels of ceramic layers. e, indicating that thermal conduction was sufficient and rotation performance was satisfactory. This newly developed bearing will provide sufficient prevention of electric corrosion in most applications
4.6.1 To Check the Bearing Insulation on a Stationary Machine:
A test was conducted to check the effects of temperature and humidity on the insulation performance. Typical environmental conditions were used during this test.
4.6.2 To Check the Bearing Insulation on a Running Machine:
The integrity of the NDE bearing insulation may be checked when the machine is running by using a MultiMate or similar instrument to measure the voltage appearing between the rotating shaft adjacent to the NDE bearing and a convenient earth point, e.g. a fixing bolt. This potential varies from machine to machine and with load, so the absence of a potential difference does not necessarily mean that the insulation has failed. On the other hand, the presence of a potential difference confirms that the bearing insulation is in good order.
4.7 EXCITER AND PMG AIRGAP MAINTENANCE TEST
The exciter stator is mounted on an extension of the NDE end box. When the machine was built, the airgap was set by shimming the stator and doweling it in position. There should be no variation over the life of the machine.
The airgaps of the exciter and PMG are small, typically 1.5mm, and the powerful magnets of the PMG rotor will attract any metallic dust that comes near them. When blowing and brushing out the exciter, it is prudent to keep the PMG covered.
NOTE
Note also that the PMG airgap can only be checked with a non-magnetic feeler gauge.
The difference between the maximum and minimum measured airgaps on either the exciter or the PMG should not be more than 10% of the nominal gap.
If the PMG gap is seen to have particles adhering to the magnets, try to push them out with a piece of plastic. If contamination is severe, it will be necessary to slide the PMG stator out of the way while the rotor is cleaned. This will require considerable force. When sliding the stator back, take care not to trap fingers in the gap. Check the gap after the stator is replaced.
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4.8 COOLER MAINTENANCE CHECK- CACW (IC8A1W7)
Check that the water pipework to the cooler is properly supported so that no significant loads are put on the cooler stub pipes. If the machine is flexibly mounted there must be a flexible section in each pipe. If work has been done on other equipment close to the machine, check that the pipework supports have not been removed in the course of that work.
Check that the water supplied to the cooler is free of sand and other particles. If there is a filter, check that it is cleaned regularly. If sacrificial anodes are fitted in the system, check that they are renewed as necessary to keep them effective.
Check that the water flow is close to the design level, as quoted on the nameplate and the general arrangement drawing. If the quoted flow is exceeded there will be no significant improvement in cooler performance and erosion of the tube ends may occur but the performance of the cooler will not be significantly improved.
If the location is cold, the water supply should contain an appropriate percentage of glycol to prevent freezing, particularly if the cooler is out of use for periods of time, for example, at night.
All joints should be inspected regularly for leaks and any that occur should be cured as the opportunity arises. The water leakage detector will detect leaks within the cooler so make sure this is functioning correctly.
If there are siphon drains, keep the U-bends full of water to prevent insects getting in. This is particularly important in tropical countries.
4.9 CHECKING THE TIGHTNESS OF THE HIGH VOLTAGE CONNECTIONS
The voltage transformer cap screws and connection nuts should be checked as follows.
Voltage Transformer Cap Screws:
There are three cross-head screws holding the cap onto the voltage transformer. The security of these screws should be checked as follows, as seen in Figure 2-1.
Figure 2-1: VT Cap Screws
i) Tighten all three cap screws on each voltage transformers phase (9 screws in total per machine) using a torque screwdriver set at 1.9Nm (1.4 lb-ft).
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NOTE
Connections to the voltage transformer primary may be via solid copper strip or cable connections. The photograph shows solid strip connections
Figure 1-2: VT High Voltage Connections
The high voltage connections are secured to the voltage transformer using brass nuts as shown in Figure 1-2.
ii) Tighten the two inner brass nuts on the threaded screw on the end of the voltage transformer
to a torque of 3Nm (2.2 lb-ft) each.
iii) Tighten the two outer brass nuts on the threaded screw on the end of the voltage transformer to a torque of 3Nm (2.2 lb-ft) each.
NOTE
Tighten the nut adjacent to the connection strip first
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5. MAINTENANCE SCHEDULE
S.No TASK DESCRIPTION REF
Section 3MONTH ( NO
DISMANTLING) ANNUALLY 5 YRS PERSONNEL
1. Visual Inspection Sec 4.1 ✓ CUSTOMER
2. Torque settings for Joints
Sec 4.2 ✓ GE
3. Cleaning Sec 4.3 ✓ GE
4. Windings Test Sec 4.4 ✓ GE
5. Stator and Rotor airgap Test
Sec 4.5 ✓ GE
6. Bearing Insulation Test
Sec 4.6 ✓ GE
7. Exciter and PMG airgap Test
Sec 4.7 ✓ GE
8. Cooler Test Sec 4.8 ✓ GE
9. Checking high voltage connections (VT & CT)
Sec 4.9 ✓ GE
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6. RECOMMENDED TOOLS
i) Megger
ii) Torque Wrench set
iii) Screw driver Minus/Star
iv) Spanner sets from 7 mm to 64 mm
v) Precision screw driver set
vi) Adjustable spanner/Cutting Plier
vii) Crimping tool/Wire stripper
viii) Multimeter
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7. GLOSSARY
AC Alternating Current
AVR Automatic Voltage Regulator
C of G Centre of Gravity
CACA Closed Air Circuit, Air cooled
CACW Closed Air Circuit, Water cooled
CT Current Transformer
DC Direct Current
DE Drive End
ETD Embedded Temperature Detector
GA General Arrangement
IC International Cooling Code
IP International Protection Code
IR Insulation Resistance
NDE Non-Drive End
PI Polarisation Index
PMG Permanent Magnet Generator
R1 Resistance after 1 minute
R10 Resistance after 10 minutes
RTD Resistance Temperature Detector
RTE Rotor Telemetry Equipment
VT Voltage Transformer
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8. APPENDIX A - MAINTENANCE REPORT
1. Customer name : _________________________________________________________
2. Job name : _________________________________________________________
3. Order number : _________________________________________________________
4. Maintenance carried by : _________________________________________________________
5. Department : _________________________________________________________
6. Maintenance start date : _________________________________________________________
7. Maintenance End date : _________________________________________________________
8. Site in-charge / Reporter : _________________________________________________________
S.No TASK DESCRIPTION COMMENTS
(Include actions completed, observations and any follow-on recommendations)
INITIALS DATE
DD/MM/YY
1
VISUAL INSPECTION
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2
TORQUE SETTINGS FOR JOINTS
3
CLEANING
4
WINDINGS TEST
5
STATOR AND ROTOR AIRGAP TEST
6
BEARING INSULATION TEST
7
EXCITER AND PMG AIRGAP TEST
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8
Cooler Test
9
Checking high voltage connections (VT & CT)
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Site Engineer Report
Guidance – Ensure all Maintenance Schedules completed are recorded; if any schedules could not be completed record the reasons for future record. Capture any observations and recommendations for follow-up actions and priority of that action. Include any Client/Customer Comments I.e. immediate or next routine visit.
_________________________________________________________ _________________________________________________________
_________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________
_________________________________________________________ _________________________________________________________
Site Engineer Name Signature Date
_________________________________________________________ _________________________________________________________
Client/Customer Name Signature Date
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9. APPENDIX B – ESTIMATED HOURS
S.No TASK DESCRIPTION REF
Section MONTHLY ANNUALLY
5 YRS
PERSONNEL Actual Time
taken Comments/Observations
1. Visual Inspection Sec 4.1 Customer
2. Torque settings for Joints Sec 4.2 GE
3. Cleaning Sec 4.3 GE
4. Windings Test Sec 4.4 GE
5. Stator and Rotor airgap Test Sec 4.5 GE
6. Bearing Insulation Test Sec 4.6 GE
7. Exciter and PMG airgap Test Sec 4.7
8. Cooler Test Sec 4.8 GE
9. Checking high voltage connections (VT & CT)
Sec 4.9 GE
10. Total Customer Estimated Time Customer
11. Total GE Estimated Time GE
12. Overall time 00 Hrs
Note: Service Engineers are to complete the actual time taken to complete each schedule, ensure you include time to complete Permits to Work and Lock-Out Tag-Out routines
GE Energy Power Conversion
Author : Vellingiri, Radhakrishnan DocRef : File : Maintenance Schedule Checklist for Alpha Generators.docx ©COPYRIGHT 2014 GE ENERGY (USA), LLC AND/OR ITS AFFILIATES. All rights reserved. GE Energy Proprietary Technical Information
CLASS II (GE INTERNAL NON-CRITICAL)
Revision : 000 Date : 2017-01-02 Page : 22/23
10. EMERGENCY CONTACT DETAILS
If any machine failure or problem occurred during normal operation or maintenance work please contact any one of the below GE operated offices
Brazil GE Power Conversion Av. Álvares Cabral, 1345 Bairro Lourdes, Belo Horizonte Minas Gerais, 30170-001 Tel: +55 31 3330 5800
India GE Power Conversion Unit No 1003, Tower B, 10th Floor Millennium Plaza, sector 27 Gurgaon, 122 002 Haryana Tel: +91 124 4200190
China GE Power Conversion 29F, Building A, Lane 58, East Xinjian Road, Minhang District 201100 Shanghai Tel: +86 21 641 46080
Russia GE Power Conversion Majorov pereulok, 14 Bldg.7 105023 Moscow Tel: +7 495 225-19-16
France GE Power Conversion 1, Square John H. Patterson 91345 Massy Cedex Tel: +33 (0) 1 77 31 20 00
UK GE Power Conversion Boughton Road Rugby, Warwickshire CV21 1BU Tel: +44 (0) 1788 563 563
Germany GE Power Conversion Culemeyerstraße 1 12277 Berlin Tel: +49 (0) 30 7622 – 0
USA GE Power Conversion 610 Epsilon Drive Pittsburgh, PA 15238 Tel: +1 412 967 0765
GE Energy Power Conversion
Author : Vellingiri, Radhakrishnan DocRef : File : Maintenance Schedule Checklist for Alpha Generators.docx ©COPYRIGHT 2014 GE ENERGY (USA), LLC AND/OR ITS AFFILIATES. All rights reserved. GE Energy Proprietary Technical Information
CLASS II (GE INTERNAL NON-CRITICAL)
Revision : 000 Date : 2017-01-02 Page : 23/23
11. MODIFICATION RECORD
Revision Date Author Details
000 2017-01-02 Vellingiri, Radhakrishnan Initial Issue