WTG-02

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WTG-02 is a turbine at Quellmoor Ridge Wind Farm.^{123456789101112} Its 2026 maintenance plan includes gearbox endoscope inspection task MP-GBX-04, and the plan records that the task is done at 2026-07-01.¹³¹⁴ WTG-02 had a generator-side HSS bearing spalling finding on 2026-07-23, and work order WO-26-0439 is waiting for parts for the bearing replacement.¹⁵¹⁶

Facts

• On 2025-01-21 at -24.6 °C, WTG-02 and WTG-09 needed more than 6 hours of heating before starting.¹⁷
• The audit method was document review, interviews, and observation of two jobs: a filter change on WTG-02 and a rescue drill on WTG-06.¹⁸
• Issue 2 added task MP-GBX-07 for all turbines after INC-2026-006 and brought the WTG-02 endoscope inspection forward to July.¹³
• In the Plan 2026 sheet, WTG-02 gearbox endoscope inspection task MP-GBX-04 is planned for 2026-07 and has status done at 2026-07-01.¹⁴
• On 2026-04-01, icing alarms A7001 led to S600 Stopped - icing status starts for WTG-12, WTG-09, WTG-03, and WTG-02, with later clears and S600 ends recorded for each turbine in this part.^{1920212223242526}
• WTG-02 recorded A2110 Gearbox HSS bearing temperature high twice in this part, with raised values of 91.2 °C on 2026-07-19 and 90.6 °C on 2026-07-22.²⁷²⁸
• WTG-02 raised A5001 Yaw misalignment at 14.7 deg and later cleared it at 4.2 deg on 2026-07-29.²⁹³⁰
• WTG-02 and WTG-05 entered S310 Maintenance mode on 2026-08-25 in the morning, and both maintenance mode intervals ended later the same day.^31323334
• WO-26-0439 for WTG-02 is waiting for parts for a generator-side HSS bearing replacement after spalling was found at endoscopy on 2026-07-23, and it lists part FGT-P-22328 quantity 1.¹⁵
• The turbine labels shown on the plan are WTG-01, WTG-02, WTG-03, WTG-04, WTG-05, WTG-06, WTG-07, WTG-08, WTG-09, WTG-10, WTG-11, and WTG-12.^{123456789101112}
• WTG-02 had an endoscope inspection on 23/07 that found spalling on the HSS bearing on the generator side.¹⁶
• WO-26-0439 for WTG-02 was raised on 24/07 and is waiting for the same bearing as WTG-07, part FGT-P-22328.¹⁶
• WTG-02 is kept in operation and its vibration is reviewed weekly.¹⁶
• From minus twenty, heaters need about four hours to bring the sump to plus five; the previous January, WTG-02 and WTG-09 needed more than six hours.³⁵

Timeline

• 2025-01-21: On 2025-01-21 at -24.6 °C, WTG-02 and WTG-09 needed more than 6 hours of heating before starting.¹⁷
• 2026-04-01: On 2026-04-01, icing alarms A7001 led to S600 Stopped - icing status starts for WTG-12, WTG-09, WTG-03, and WTG-02, with later clears and S600 ends recorded for each turbine in this part.^{1920212223242526}
• 2026-07: In the Plan 2026 sheet, WTG-02 gearbox endoscope inspection task MP-GBX-04 is planned for 2026-07 and has status done at 2026-07-01.¹⁴
• 2026-07-19: WTG-02 recorded A2110 Gearbox HSS bearing temperature high twice in this part, with raised values of 91.2 °C on 2026-07-19 and 90.6 °C on 2026-07-22.²⁷²⁸
• 2026-07-23: WO-26-0439 for WTG-02 is waiting for parts for a generator-side HSS bearing replacement after spalling was found at endoscopy on 2026-07-23, and it lists part FGT-P-22328 quantity 1.¹⁵
• 2026-07-29: WTG-02 raised A5001 Yaw misalignment at 14.7 deg and later cleared it at 4.2 deg on 2026-07-29.²⁹³⁰
• 2026-08-25: WTG-02 and WTG-05 entered S310 Maintenance mode on 2026-08-25 in the morning, and both maintenance mode intervals ended later the same day.^31323334

Documents

• Environmental Permit EP-2018-0417 - Quellmoor Ridge Wind Farm (consolidated with variation 2)
• MOC-2025-012 - Gearbox Oil Grade Change to PWG 220
• Blade inspection report WBS-2026-031 - Quellmoor Ridge Wind Farm (May 2026)
• SOP-GBX-010 Rev. B - Gearbox oil change
• SOP-WAH-003 Revision B - Working at height and rescue
• WI-GEN-014 Rev. A - Generator Brush Replacement
• Asset Register 2026 of Quellmoor Ridge Wind Farm, revision 2026-01-12
• Internal safety audit report AUD-2026-02
• Maintenance Plan 2026, Issue 2 — Quellmoor Ridge Wind Farm
• SCADA alarm and status log, 2026-04-01 to 2026-08-31
• Work Orders Export through 2026-08-31
• KPI Export 2026-H1
• Quellmoor Ridge Wind Farm Onboarding and Site Rules (February 2025)
• Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C
• Email RE: LWS-TS-48213 Applicability of SB-LWS-2025-07 Rev. A to Quellmoor Ridge
• Shift Handover for 2026-07-29 Day Shift
• Shift handover - 2026-07-15 (day shift to night shift)
• Toolbox Talk: Cold-Weather Start-Up After PWG 220 Conversion
• SOP-GBX-010 - Gearbox oil change, Revision A (superseded)

Related

• Topics: Blades, pitch bearings and main-component lifts, Cold-climate operation and icing, Environmental permit and night curtailment, Gearbox lubrication and oil changes, Gearbox temperature, vibration and oil analysis, Generator brushes and electrical systems, Grid connection and grid operator instructions, Safety, isolation and work at height, Spare parts, stock levels and supply, Training, site rules and acronyms

Sources

Footnotes

1. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 5 · OCR ↩ ↩²

2. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 6 · OCR ↩ ↩²

3. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 9 · OCR ↩ ↩²

4. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 10 · OCR ↩ ↩²

5. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 11 · OCR ↩ ↩²

6. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 13 · OCR ↩ ↩²

7. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 12 · OCR ↩ ↩²

8. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 14 · OCR ↩ ↩²

9. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 16 · OCR ↩ ↩²

10. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 18 · OCR ↩ ↩²

11. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 20 · OCR ↩ ↩²

12. Quellmoor Ridge Wind Farm Site Layout Plan - Rev. C — region 21 · OCR ↩ ↩²

13. Maintenance Plan 2026, Issue 2 — Quellmoor Ridge Wind Farm — sheet "Revision log", row 3 · table ↩ ↩²

14. Maintenance Plan 2026, Issue 2 — Quellmoor Ridge Wind Farm — sheet "Plan 2026", row 19 · table ↩ ↩² ↩³

15. Work Orders Export through 2026-08-31 — row 80 · table ↩ ↩² ↩³

16. Shift Handover for 2026-07-29 Day Shift — lines 5–14 · ✓ quote verified ↩ ↩² ↩³ ↩⁴

17. MOC-2025-012 - Gearbox Oil Grade Change to PWG 220 — ¶ 6 · ✓ quote verified ↩ ↩²

18. Internal safety audit report AUD-2026-02 — p. 1 · ✓ quote verified ↩

19. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 4 · table ↩ ↩²

20. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 5 · table ↩ ↩²

21. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 6 · table ↩ ↩²

22. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 7 · table ↩ ↩²

23. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 8 · table ↩ ↩²

24. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 9 · table ↩ ↩²

25. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 12 · table ↩ ↩²

26. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 13 · table ↩ ↩²

27. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1330 · table ↩ ↩²

28. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1366 · table ↩ ↩²

29. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1422 · table ↩ ↩²

30. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1423 · table ↩ ↩²

31. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1850 · table ↩ ↩²

32. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1851 · table ↩ ↩²

33. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1856 · table ↩ ↩²

34. SCADA alarm and status log, 2026-04-01 to 2026-08-31 — row 1857 · table ↩ ↩²

35. Toolbox Talk: Cold-Weather Start-Up After PWG 220 Conversion — 00:45–00:56 · ✓ quote verified ↩

Provenance badges✓ quote verified the quoted words were found verbatim in the source texttable values parsed deterministically from the cited table rowsOCR text recognised from an image; compare it with the image