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The Role of CoroCAM and MultiCAM in the Development of High-voltage Defect Visualisation
Figure 4: Damage to One Conductor During Installation Defect Figure 5: Hotspot on Conductor Clamp Only Visible on One Phase
Visible with Corona Camera on One Phase Only by the Use of Infrared Camera
Each system has its advantages and drawbacks and careful selection system, such as a global positioning service and a reliable recording
of the appropriate method is required to make efficient use of system, are essential so that the faults detected during the survey
equipment, manpower and time. may be analysed and reported on. A recent refinement on the
helicopter theme, for lower-cost aerial inspections of short runs, is
For helicopter applications the CoroCAM system may be handheld by the development of unmanned aerial vehicles.
an operator, mounted in a suspension system within the helicopter
or, in the ultimate usage, mounted into a gimbal under the helicopter A further usage of the visualisation technology is in 24/7 surveying of
and controlled from within the cockpit. Uvirco has collaborated with fixed locations, such as particularly vulnerable areas within a
Polytech in Sweden to develop the Corona 350 gimbal fitted with the substation. This is done with a CoroCAM or MultiCAM mounted on a
CoroCAM 504. For all these options some form of automatic location pan-and-tilt mechanism, allowing an operator to survey a larger area.
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