Wind & Energy

Non-Destructive Testing Solutions on Primary Areas of the Wind TurbinesTower, Hub, Nacelle and Turbine Blades

Wind turbines inevitably go through challenging lifecycles causing deterioration, eventually costing wind farm operators an extortionate amount of money to fix and in many cases, instigating them to start all over again from scratch. Decommissioning or conducting major renovations are expensive paths to go down, as is operating a turbine below peak performance causing high costs and inefficiencies. To ensure a healthy lifecycle, it’s important that wind turbines are regularly inspected and maintained for as long as they are in operation.

At Sonomatic RAIS, our team of highly trained technicians provide ACFM and Phased Array Bolt inspections for wind turbines and their component parts during multiple stages of their lifecycle, ensuring the best performance and minimal costs for the operators.

NDT Techniques to Cover all Key Components of the Wind Turbine

Level 1 2 and 3 Rope Access and NDT Technicians from Sonomatic RAIS Rope Access and NDT Inspection Services provide a full range of services for the inspection of all areas of the wind turbines
Primary Areas of Wind Turbines that should be Inspected:
  • Tower
  • Hub
  • Nacelle
  • Turbine Blades
Tower – Key Components - Danger Points:
  • Ancillary Bolts
  • Flanges
  • Circumferential Welds

NDT on Ancillary Bolts

Sonomatic RAIS Rope Access and Inspection Services conduct Non Destructive Testing NDT on Wind Turbine Bolts - Scan showing the results of NDT on bolts of a wind turbine

Phased Array (PAUT) is an advanced method of ultrasonic testing that has applications in medical imaging and industrial testing. When applied to metals, the PAUT image shows a slice view that may reveal defects hidden inside a structure or weld. Sonomatic RAIS offers Phased Array Bolt inspection using state-of-the-art technology, covering a wide range of applications from corrosion mapping, to crack detection and characterisation in welded pipes and plates, can handle thick components as well as detect and characterise misoriented defects.

Benefits include:
  • Fast screening of bolts.
  • Bolts can be inspected whilst in-situ.
  • Instant results.
  • Fully recordable PAUT data for auditing, insurance, accountability and archiving.

NDT on Flanges

Sonomatic RAIS Rope Access and Inspection Services conduct Non Destructive Testing NDT on Wind Turbine Flanges - sketch showing the results of NDT on flanges of a wind turbine

Phased Array UT is used to look for fatigue cracks propagating from the bolt holes. Alternating Current Field Measurement (ACFM) is used to inspect the Flange Welds.

Benefits include:
  • Fast screening techniques.
  • Early detection of fatigue cracks.
  • Flange can be inspected with bolts in place.
  • Fully recordable data for auditing, insurance, accountability and archiving.

Circumferential Welds

TOFD Time of Flight Diffraction is performed by Sonomatic Level 3 wind turbine inspectors from Sonomatic RAIS Rope Access and Inspection services team for circumferential welds

Phased Array Ultrasonic Testing (PAUT) and/or Time of Flight Diffraction (TOFD) can be utilised to inspect circumferential welds.

Benefits include:
  • Fast screening techniques.
  • Early detection of fatigue cracks.
  • Fully recordable data for archiving.
  • Original data can be recalled for comparison with any repeat inspection data to monitor any defect growth.

NDT ON HUB

Using a drone Sonomatic RAIS Rope Access and Inspection Services Technicians perform Non destructive testing on wind turbine Hubs

Sonomatic can perform either a general visual inspection (GVI) or close visual inspection (CVI) on the wind turbine Hub. Drone inspections are performed by using the most rugged, reliable UAS – made in America by Saxon Remote Systems.

Benefits include:
  • Extremely fast and reliable NDT technique
  • Ability to detect external damage
  • Can be performed by rope access or drones (From within the same Team)

NDT ON NACELLE

Schematic showcasing where Sonomatic RAIS Rope Access and Inspection Services Technicians can perform NDT on the wind turbine Nacelle

Deep penetrating Phased Array UT (PAUT) can be performed on the Main Rotor Shaft.

Benefits include:
  • The Shaft can be inspected while in-situ
  • Early detection of any fatigue defects
  • Fully recordable data for insurance, archiving, auditing etc.

NDT ON TURBINE BLADES

Technicians of Sonomatic RAIS Rope Access and Inspection Services perform Non Destructive Testing NDT on wind turbine blade cross sections

Spar Cap and Shear Web Bonding.

Large aperture low-frequency PAUT probes can be utilised to look for lack of bonding on the Spar Cap and Shear Webs.

Benefits include:
  • Rapid screening technique
  • Blades can be inspected while in-situ using rope access techniques
  • Early detection of delamination’s
  • Fully recordable data for archiving auditing, insurance, accountability and archiving

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