Testing and Inspection
Vibration Spectrum Analysis
Utilising the latest vibration analysis tools Vibration Spectrum Analysis can be completed with source and resolution of issues reported.
Endoscope Video Inspections
Access to Generators is extremely limited when the Rotor is in pace and outage period constricted to reduce down time. As such Endoscope (or Boroscope) Inspections are completed on the windings and slot core exists where the likelihood of Partial Discharge deposits or failure are most likely to occur. These images can determine whether further repair or remedials works are required.
Wedge Tightness Mapping
The High Voltage Coils of Generators and Motors are held in place we either full or partial slot length wedges. Migration of these wedges can be indicative of failures in the insulation and packing below or cause the coils to move & fret the insulation. The Mapping is conducted using tap tests on the individual wedges throughout the whole of the stator winding.
Electronic Core Imperfection (ELCID)
The Electromagnetic Core Imperfection Detector or EL CID is a test that is used to detect insulation failures between laminations of stator cores in large motors and generators. Utilised during major Overhauls whilst the rotor is removed, it uses reduced power requirement to detect failures. The alternate Core Flux test can also be completed by RE Field Services and offered both in house & on site whenever practicable.
Magnetic Particle Inspections (MPI)
Magnetic particle Inspection (MPI) is a non-destructive testing (NDT) process for detecting surface and slightly subsurface discontinuities in ferromagnetic materials and is performed to standards such as EN473 and ISO9712.
Rotating Electrical Equipment by its dynamic nature is sensitive to axial & rotational positioning which if incorrect can lead to vibration and other associated issues. Alignment checking is therefore fundamental to the set up of the rotating equipment.
Liquid Penetrant Inspections (LPI)
Liquid Pentrant Inspection (LPI) is a non-destructive testing (NDT) process for detecting cracks and surface discontinuities in metal alloys primarily for use on bearing white metals and bearing casings this technique is often used in works & on site.
Ultrasonic Adhesion Testing (White Metal Bearings)
Ultrasonic Adhesion Testing (UT) is a non-destructive testing (NDT) process for used for detecting metal to metal adhesion for use on Rotor End Bells and Rotor forging examinations this technique is often used in works & on site.