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With concerns regarding access and arc flash exposure, thermal imaging is becoming increasingly difficult on some high voltage installations. Ultrasonics coupled with TEV measurements allows for non intrusive assessment of high voltage installations in a safe and accurate manner prior to an in service failure.
All high voltage assets will have some level of partial discharge occurring either internally or on the surface of the insulation. TEV readings taken, can be quantified to determine the severity of any internal discharge problems and any required investigations or maintenance strategies.
Ultrasonic inspection of the assets allows for easy identification of surface tracking that may lead to erosion of insulation and the deposit of potentially conductive surface contamination.
Ultrasonic and TEV detection have become the technology of choice for safe unobtrusive High Voltage electrical inspections.
Typical applications include:
All audits have a detailed report documenting the found state and recommended actions.