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UltraBolt
A smart bolt with a built-in ultrasonic sensor that creates a fixed reference point for consistent, high-sensitivity partial discharge (PD) testing in switchgear and other HV assets. Simply connect to your magnetic reader and measure in seconds using the UltraTEV Plus2 or Astute.
Faster testing for reduced time on site
Increased sensitivity with internal ultrasonic sensing
Consistent, repeatable results for confident decisions
Explore the UltraBolt
Improve measurement consistency, ultrasonic sensitivity and inspection speed with UltraBolt for switchgear partial discharge testing.
UltraBolt is a fixed ultrasonic sensor accessory designed for use with the UltraTEV Plusยฒ and Astute Monitor. Installed directly into switchgear as a replacement bolt, it provides a permanent measurement point for detecting airborne ultrasonic emissions associated with surface partial discharge. Readings are taken by connecting a magnetic reader to the UltraBolt, with results displayed directly on the UltraTEV Plusยฒ or processed through the Astute Monitor.
UltraBolt is best suited to air-insulated compartments such as cable boxes, busbar chambers and CT/VT chambers, particularly where repeatable ultrasonic access is otherwise difficult. Designed for engineers and maintenance teams, it helps improve measurement consistency, streamline inspections, and build a clearer picture of asset condition over time.
Fixed reference point for consistent trending
Every reading is taken from the same installed location each time, reducing variation between engineers and the need for specialist PD judgement on site, while improving long-term condition monitoring and asset comparison.Improved ultrasonic sensitivity
The internal ultrasonic sensor removes air gaps and increases the quality of PD signal detection, supporting earlier identification of insulation issues.Faster routine inspections
Connect the magnetic reader to the UltraTEV Plusยฒ or Astute Monitor and measure instantly, for a faster survey workflow. No panel removal and no temporary sensor setup means less time on site and lower operational disruption.
Compatible with
The UltraBolt is compatible with both the UltraTEV Plusยฒ unit and the Astute Monitor.
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