Report Turbine inspection WTG 12801, Oudelandertocht 11 · 2016-04-01 · Blade 1 Vestas 32B - not...
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09-11-2015 Report Turbine inspection WTG 12801, Oudelandertocht 11 Report No. V662015041
Transcript of Report Turbine inspection WTG 12801, Oudelandertocht 11 · 2016-04-01 · Blade 1 Vestas 32B - not...
09-11-2015
Report Turbine inspection
WTG 12801, Oudelandertocht 11
Report No. V662015041
Wind turbine inspection Oudelandertocht 11 WTG 12801
Date: 09-11-2015 Page 2 of 21
Contents
1 Purpose ................................................................................................................................... 3
2 Abbreviations ........................................................................................................................... 3
3 General information ................................................................................................................. 4
4 Wind turbine main components ............................................................................................... 4
5 Documents ............................................................................................................................... 5
6 Logbook: Overview of recent maintenance .............................................................................. 6
7 Logbook: Transformer ............................................................................................................. 6
8 Logbook: Notable events ......................................................................................................... 7
9 Tower and towerbase .............................................................................................................. 8
10 Yaw system ........................................................................................................................ 10
11 Cabinets nacelle ................................................................................................................. 11
12 Nacelle ............................................................................................................................... 12
13 Gearbox and main shaft ..................................................................................................... 13
14 Generator and coupling ...................................................................................................... 15
15 Hydraulic system nacelle .................................................................................................... 16
16 Rotor .................................................................................................................................. 16
17 Conclusion .......................................................................................................................... 21
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1 Purpose
On behalf of Vattenfall an inspection has been executed on the wind turbine. The purpose of the inspection is to
determine the technical state of the wind turbine.
2 Abbreviations
ok okay
nok not okay
na not applicable
nav not available
nc not checked
info for information purpose
Items marked with “ok” and “info” show no visual irregularities. All issues which are not acceptable are marked
with “nok”. Items which are “nok” will be classified in three different classes.
Class Clarification Description in report
Priority Low An irregularity, which is not a safety issue, and is relatively easy to solve.
Low
Priority High An irregularity, which is not a safety issue, and is more serious and is more time and/or money consuming to solve.
High
Safety Issue Issues which concern the safety of the people working in the turbine.
Safe
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3 General information
Wind turbine name: Oudelandertocht 11
Wind turbine type: V66 – 1650/300KW - 690/50 – R7035
Wind turbine S/N: 12801
Location: Middenmeer
Hub height: 78
Total production [kWh]: 15530918 (according to display)
Total hours: 2306 (according to display)
Nominal power [kW]: 1650
Year of installation: 2002
Date of inspection: 26-10-2015
Inspectors: P. den Braber
D. Lagerweij B. van de Braak J. Langenbach
4 Wind turbine main components
Component Type Year Serial number
Nacelle V66 – 1650/300KW - 690/50 – R7035 2002 749502-03-02-66021
Gearbox Winergy PEAS 4395 2010 4835501 - 0020 - 1
Revision gearbox - - -
Gearbox oil Texaco Meropa 320 2011 -
Generator Weier GEN DASG 450W 2000 581528A
Aux. Generator ABB M2CG 315MB 4 B3 - 3392350
Blade 1 Vestas 32B - not legible
Blade 2 Vestas 32B - 35011
Blade 3 Vestas 32B - not legible
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5 Documents
Component Remark
1 Operator manual Operating manual is available at the turbine.
Machine directive 2006/45/EC, 1.7.4.2 states as part of the Contents of
instructions:
“(e) the drawings, diagrams, descriptions and explanations necessary for the
use, maintenance and repair of the machinery and for checking its correct
functioning;”
ok
2 Wiring diagram Wiring diagrams are not available at the turbine.
Machine directive 2006/45/EC, 1.7.4.2 states as part of the Contents of
instructions:
“(e) the drawings, diagrams, descriptions and explanations necessary for the
use, maintenance and repair of the machinery and for checking its correct
functioning;”
nok
3 Hydraulic diagram Hydraulic diagrams are not available at the turbine.
Machine directive 2006/45/EC, 1.7.4.2 states as part of the Contents of
instructions:
“(e) the drawings, diagrams, descriptions and explanations necessary for the
use, maintenance and repair of the machinery and for checking its correct
functioning;”
nok
4 Maintenance manual Maintenance manual is not available at the turbine.
Machine directive 2006/45/EC, 1.7.4.2 states as part of the Contents of
instructions:
“(e) the drawings, diagrams, descriptions and explanations necessary for the
use, maintenance and repair of the machinery and for checking its correct
functioning;”
nok
5 Logbook Logbook is available at the turbine. ok
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6 Logbook: Overview of recent maintenance
Year Type of maintenance Date of execution Maintenance schedule
Commissioning 08-2002 2002
… … … …
9 E- 36 month service 19-08-2011 2011
9½ B - 6 month service 09-02-2012
10 G - 60 month service 14-09-2012 2012
10½ B - 6 month service 14-02-2013
11 M – 11 year service 09-08-2013 2013
11½ B - 6 month service 27-01-2014
12 N – 48 month service 05-08-2014 2014
12½ B - 6 month service 21-01-2015
13 O – 12 month service 20-08-2015 2015
7 Logbook: Transformer
Date Event
… …
16-03-2011 Transformer inspection
23-04-2012 Transformer inspection
24-07-2013 Transformer inspection
26-06-2014 Transformer inspection and repair
20-07-2015 Transformer inspection
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8 Logbook: Notable events
Date Event
05-08-2009 Replaced RCC
10-09-2009 Generator exchange
22-12-2011 Gearbox exchange
04-10-2012 Exchanged all capacitors of phase-compensation
13-02-2013 Exchanged plain bearings blade A, B and C
26-03-2013 Exchanged 6 capacitors of phase-compensation
10-07-2013 New torque-arm dampers
22-01-2014 Replaced RCC-processor
24-06-2014 Arc detection installed in busbar section
10-07-2015 Repair and maintenance rotor blades
14-07-2015 Replaced RCC-processor
22-09-2015 Exchanged DE-bearing, NDE-bearing generator and RCC replaced
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9 Tower and towerbase
Item Remark
1 Outside Graffiti present on the outside of the tower.
nok
High
2 Inside Oil visible inside the tower and on the ladder.
nok
High
3 Towerbase HV-switch overview
Info
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4 Towerbase cabinet
overview
Info
5 Miscellaneous Bolt at the beam of the cable suspension is not tightened correctly.
nok
Low
6 Oscillation
damper
One of the supports of the oscillation damper is almost broken.
NOTE: This problem is reported to the owner immediately and the owner has assured
TeSuCon that the problem has been solved that same week.
Info
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10 Yaw system
Item Remark
1 Yaw bearing overview
ok
2 Yaw ring teeth Yaw ring shows no irregularities.
ok
3 Yaw pinions Yaw pinions show no irregularities.
ok
4 Yaw gears Yaw gear at the front is slightly polluted with oil (arrow).
nok
Low
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11 Cabinets nacelle
Item Remark
1 Controller
ok
2 Compensation Cabinet
ok
3 Connection boxes ok
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12 Nacelle
Item Remark
1 Nacelle overview
Info
2 Frame Turbine is equipped with a welded frame.
Info
3 Nacelle housing Parts of the insulation are missing or damaged.
nok
Low
4 Weather station
Info
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13 Gearbox and main shaft
Item Remark
1 Main shaft bearings
Grease of the bearings is a bit dark and only magnetic at the rear bearing.
The main shaft is quite dirty (arrow).
nok
High
2 Radiators The flexible hoses of the radiators are starting to wear.
nok
Low
3 Manifold Oil present under the manifold.
nok
High
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4 CCJ-unit A CCJ-filter system is present in the turbine.
ok
5 Gear oil system Leakage under the electrical oil pump.
nok
High
6 Hoses and pipes ok
7 Torque-arms Torque-arm system has been modified.
Info
8 Paint / Corrosion ok
9 Brake-system overview
Info
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14 Generator and coupling
Item Remark
1 Coupling The composite parts of the coupling are in an acceptable condition. The bolts and washer of the connections are a bit corroded.
ok
2 Aux. Generator Aux. generator is not connected to the gearbox.
Info
3 Paint / Corrosion ok
4 RCC The RCC shows no visual irregularities.
Info
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15 Hydraulic system nacelle
Item Remark
1 Overview
Info
2 Hoses ok
3 Leakage ok
4 Corrosion ok
16 Rotor
Item Remark
1 Overview
Info
2 Paint / Corrosion ok
3 Connection spinner
Connection has not been reinforced. No cracks detected in the tubes.
Info
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4 Hub cabinet overview
Info
5 Connections cylinder to the
blade
The clearance of the link bearings of pitch cylinders A, B and C are 0,23 [mm], 0,23 [mm] and 0,28 [mm]. This is acceptable according to the Vestas Manual.
ok
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6 Connections cylinder to the
hub
The clearance of the slide bearings of pitch cylinders A, B and C are 1,12 [mm], 0,91 [mm] and 1,18 [mm]. The clearances of A and C are not acceptable
according to the Vestas Manual.
nok
High
7 Hydraulics inside
the hub
Several hoses in the hub are covered with oil and the inside of the main shaft is
dirty.
nok
High
8 Hydraulics outside the hub
ok
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9 Blade bearings Minor pollution with grease from the blade bearings.
nok
Low
10 Blade covers Three of the blade covers are defect.
nok
High
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11 Blades overview Green pollution visible on the surface of the blades.
The protective tape at the leading edge of the blades is also damaged (arrow).
nok
High
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17 Conclusion
The logbook shows that the turbine and the transformer have been maintained on a regular basis, according to
the maintenance schedule of Vestas.
The gearbox has been exchanged in 2011 and the generator in 2009. The RCC and the generator bearings have
been replaced in 2015.
Despite the blade maintenance/repair in 2015, there is loose tape visible at the tip of the blades.
The overall condition of the turbine is quite acceptable for a thirteen year old turbine. There are however
several issues (marked as nok in this report) present and it is recommended to solve these, in order to improve
the condition of the turbine.
D. Lagerweij
09-11-2015
TeSuCon B.V.
Mercuriusweg 8 3771NC Barneveld +31610032858 [email protected] www.tesucon.nl
13-11-2015
Report Gearbox inspection
WTG 12801, Oudelandertocht 11
Report no. V662015081
Gearbox inspection Oudelandertocht 11 WTG 12801
Date: 13-11-2015 Page 2 of 17
Contents
1. Purpose ............................................................................................................. 3
2. General Information .......................................................................................... 3
3. Reporting setup ................................................................................................. 4
4. Inspection results ............................................................................................. 5
5. Summary ......................................................................................................... 17
6. Conclusion ....................................................................................................... 17
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1. Purpose
On behalf of Vattenfall an inspection has been executed on the wind turbine gearbox. The
purpose of the inspection is to determine the technical state of the gearbox. The visual
inspection of the gearbox has been executed with a GE Everest XLG3 Videoscoop.
2. General Information
Turbine Information
Wind turbine name: Oudelandertocht 11
Wind turbine type: V66 – 1650/300KW - 690/50 – R7035
Wind turbine serial no: 12801
Location: Middenmeer
Hub height: 78
Total production [kWh]: 15530918
Total hours: 2306
Nominal power [kW]: 1650
Year of installation: 2002
Date of inspection: 26-10-2015
Inspectors:
P. den Braber
D. Lagerweij
B. van de Braak
J. Langenbach
Gearbox Information
Gearbox type: Winergy PEAS 4395 i = 78,659
Gearbox serial number: 4835501 - 0020 - 1
Production year gearbox: 2010
Revision: -
Revision number: -
Oil type: Texaco Meropa 320
Date of last oil change: Gearbox exchange date
Gearbox has been exchanged on 22-12-2011
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3. Reporting setup
The next drawing shows a cross-section of a planetary gearbox with two linear stages with
corresponding bearing positions. The drawing should be used as a reference for the bearing
position only.
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4. Inspection results
Picture 1
Picture 1 shows bearing position no. 1, the bearing of the planet carrier at rotor side. No
irregularities.
Picture 2
Picture 2 shows the bearing of the first planet wheel. No irregularities.
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Picture 3
Picture 3 shows the bearing of the second planet wheel. No irregularities.
Picture 4
Picture 4 shows the bearing of the third planet wheel. No irregularities.
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Picture 5
Picture 5 shows bearing position no. 5, the bearing of the planet carrier at generator side. The
bearing shows no irregularities.
Picture 6
Picture 6 shows bearing position no. 6, the bearing of the low speed shaft at rotor side. The
bearing shows no irregularities.
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Picture 7
Picture 7 shows bearing position no. 7, the bearing of the low speed shaft at generator side.
The bearing shows no irregularities.
Picture 8
Picture 8 shows bearing position no. 8, the bearing of the intermediate shaft at rotor side. The
bearing shows no irregularities.
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Picture 9
Picture 9 shows bearing position no. 9, the bearing of the intermediate shaft at generator side.
The bearing shows no irregularities.
Picture 10
Picture 10 shows bearing position no. 10, the bearing of the high speed shaft at rotor side. The
bearing shows no irregularities.
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Picture 11
Picture 11 shows bearing position no. 11, the bearing of the high speed shaft at generator
side. The bearing shows no irregularities.
Picture 12
Picture 12 shows bearing position no. 12, the bearing of the auxiliary high speed shaft at rotor
side. The bearing shows no irregularities.
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Picture 13
Picture 13 shows bearing position no. 13, the bearing of the auxiliary high speed shaft at
generator side. The bearing shows no irregularities.
Picture 14
Picture 14 shows the active flank of the ring gear. No irregularities.
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Picture 15
Picture 15 shows one of the planet wheels. None of the planet wheels show irregularities.
Picture 16
Picture 16 shows the active flanks of the sun pinion. No irregularities.
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Picture 17
Picture 17 shows the active flanks of the wheel of the low speed shaft in the linear stage. No
irregularities.
Picture 18
Picture 18 shows the active flanks of the pinion of the intermediate shaft in the linear stage.
No irregularities.
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Picture 19
Picture 19 shows the active flanks of the wheel of the intermediate shaft in the linear stage. No
irregularities.
Picture 20
Picture 20 shows the active flanks of the pinion of the high speed shaft in the linear stage. No
irregularities.
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Picture 21
Picture 21 shows the active flanks of the wheel of the high speed shaft in the linear stage. No
irregularities.
Picture 22
Picture 22 shows the active flanks of the wheel of the auxiliary high speed shaft in the linear
stage. No irregularities.
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Picture 23
Picture 23 shows the oil level of the gearbox.
Picture 24
Picture 24 shows the magnet of the gearbox. No steel particles are visible on the magnet.
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5. Summary
The visual inspection of the gearbox shows no signs of severe pitting, major damages or
extreme wear.
There are no steel particles found on the magnet.
6. Conclusion
The gearbox is in an acceptable condition.
Dennis Lagerweij
Barneveld, 13-11-2015
TeSuCon B.V.
Mercuriusweg 8
3771NC Barneveld
The Netherlands
Tel +31610032858
Email [email protected]
Web www.tesucon.nl
