Corona Discharge
Partial discharge, corona and arcing detection in overhead power lines, substations and other electrical apparatus can easily be achieved using our services
The use of our Corona discharge detecting systems to inspect distribution overhead power cables, high voltage transmission lines and grid components has proven to be reliable, accurate and very effective. Worldwide electric utilities are using corona and arcing inspection equipment for cases such as:
- Degradation of Polymer insulators.
- Improper binder attachment of conductors to insulators.
- Contamination - coastal / highway salt; industrial; contamination; agricultural fertilizers.
- Cracked porcelain insulators.
- Improper grounding or bonding lead to wooden poles fires and are safety hazards.
- Rusted cement and metal caps & pins on porcelain insulators.
- Wrong design and improper installation, that may lead to mechanical and electrical failure.
- Shorted bells.
- Loose hardware such as: spacers, slices, clamps etc.
- RFI, TVI and audio noise sources lead to customer complaints.
- Power Loss.
Why UV Inspection? Click image to play small video file
Straightforward and immediate location of corona and arcing sources saves utilities considerable amount of time, since it eliminates the need to test "blindly" a bulk of insulators and redundant replacements of grid elements. The ability to easily detect corona and arcing sources and pinpoint their locations can save distribution network operators considerable amount of money:
The information obtained by UV inspection leads to:
- Prioritizing maintenance tasks.
- Avoiding unnecessary loss of supply.
- Concentrating on the faulty hardware.
- Avoiding redundant testing and replacement of components unnecessarily.
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