Ultrasonic inspection of high voltage installations
Ultrasonic inspection is a non-destructive testing (NDT) technique used to detect electrical faults such as partial discharges, corona effects, electrical arcs, or tracking phenomena in high-voltage equipment.
This method makes it possible to identify anomalies at an early stage, anticipate failures, and ensure the reliability and safety of your installations.
Early detection of electrical faults
In this spectrum, the visible peaks represent abnormal ultrasonic signals, indicating the presence of electrical faults at their earliest stage before they cause failures or pose risks to your installations.
The associated audio recording makes it possible to clearly hear the ultrasonic emissions linked to electrical discharges.
Consequences of an undetected electrical fault
This high voltage cell shows significant damage resulting from a progressive electrical fault.
Without early intervention, this type of anomaly can gradually worsen and lead to a major failure, compromising both installation safety and service continuity.
Ultrasonic inspection allows these issues to be identified before they have critical consequences.
Ultrasonic inspection of high voltage installations
Anticipate to better protect
Ultrasonic inspection detects the first signs of anomalies in your high-voltage systems, long before they become visible or critical.
Integrated into a predictive maintenance strategy, it helps you plan interventions, avoid unexpected shutdowns, and maintain a high level of electrical safety.
Why perform this inspection?
As part of a predictive maintenance approach, ultrasonic inspection is a strategic tool to:
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Detect electrical faults before they develop into major failures.
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Prioritize interventions according to the severity of detected anomalies.
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Reduce the risk of electrical incidents.
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Strengthen the safety and reliability of your high-voltage installations.
A non-destructive inspection with no downtime
Ultrasonic inspection provides accurate diagnostics without disassembly or power interruption.
Checks are carried out under load, ensuring a realistic assessment of the system’s actual operating conditions.
A detailed and actionable analysis report
Each inspection results in a comprehensive report including:
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The precise location of detected faults.
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A commented ultrasonic analysis.
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Targeted recommendations to guide your interventions.
This information supports maintenance planning, condition monitoring, and traceability of inspections.
A strategic choice for your installations
Ultrasonic inspection is part of a predictive maintenance and electrical risk prevention strategy.
When performed regularly, it helps secure your equipment, extend its lifespan, and reduce corrective maintenance costs.
This type of inspection is also often recommended by insurers as part of high-voltage risk prevention.
It is a proactive, reliable, and sustainable approach that serves the performance and safety of your installations.
Complementary to thermography
For a complete analysis of your high-voltage installations
Ultrasonic inspection can be complemented by Thermographic inspection.
This non-contact method makes it possible to detect overheating areas invisible to the naked eye and to reveal other thermal anomalies specific to high-voltage equipment.
Whenever the installation configuration allows, thermography is integrated into the ultrasonic inspection, providing enhanced predictive maintenance to ensure optimal safety and performance.