We use our own senses to perceive, but sometimes this is not enough. We seek tools to rely on. Tools that take us far beyond what our own senses can take in.
To extend our visual abilities and see corona UV in daytime you need to use a DayCor® camera and reveal hidden faults foresee failures before they happen

eXtend Your Senses

Ofil offers a wide selection of genuine cameras and imaging systems for the detection of corona and arcing. Ofil's systems are being used by engineers to prevent and manage electrical equipment failure. Ofil is committed to manufacture reliable testing equipment and provide expert advice to ensure that each customer gets the proper solution.

Ofil's DayCor® cameras are used by reliability engineers to prevent and manage equipment failure. Ofil's systems include: bi-spectral UV-Visible cameras and UV imagers classified as Non-Destructive Testing (NDT) equipment. UV inspection complements other technologies such as PD measurement, Infrared, ultrasonic etc. A comprehensive maintenance approach requires inspection by an imaging camera and other available technologies.

Facilities' maintenance strategies have changed from, rum-to-fail or time-based management to predictive & condition-based or reliability-centered management thereby reducing operation and maintenance costs. Corona cameras collect data that assists predicting failures patterns and prioritizing preventive proactive activities. Facilities dedicate resources to these proactive maintenances and minimize thereby high repair cost and unexpected shutdown. Reliability management involves using reliable instruments that indicate and pinpoint faults and potential faults on time, precisely, and easily.

Why use corona cameras?

Corona discharge is associated with local high electrical field that exceeds the air ability to withstand and remain a dielectric gap. Corona can hit any medium/high voltage apparatus: transformers, bushings, capacitors, insulators, switchgear, conductors, cables, motors, spacers, switch cabinets, and more.

Corona is triggered by sharp edges, physical defects, contamination, bad design, wrong installation, improper material etc. Corona acts as a signal of existing faults, and at the same time corona itself radiates UV, creates Ozone (O3) and acids, dissipates audio noise and interferes with radio signals.

Seeing corona is advantageous to maintenance teams; pinpointing its origin is of great value and can reduce substantially inspection costs.

Ofil's corona cameras lead maintenance engineers to origin of electrical failures, and cut inspection durations and reduce redundant activities such as insulators washing. During commissioning corona cameras immediately detect design issues. Corona cameras assist to avoid shutdowns, their use does not involve over loading, nor destruction of the tested elements. Using corona cameras has, according to our customers, helped them extend elements' lifetime and slowed down aging processes.

why Ofil?

Ofil's corona cameras are made with proprietary UV filters and high sensitivity sensors. All systems are strictly tested for solar blindness and have CE certificates.

Ofil offers a wide range of products, with proven performance, and affordable tailored and off-the- shelf solutions to match the specific needs of its customers.

Ofil is engaged with ongoing research & development activities and keeps its corona cameras updated technologically.

Ofil enriches its customers with supportive educational projects, and assists them master UV inspection methodology and predictive maintenance.

Ofil is attentive to its customers and listens to their versatile changing needs. Customers' support is provided locally through Ofil's worldwide network of representatives.

Railway Catenary Diagnostics

Ofil's DayCor® Rail is a fully automatic inspection solutions for overhead catenary diagnostics. Rail generates a full report of corona and arcing events that are detected on conductors and insulators. The report is generated automatically at the end of a trip. Rail is a unique smart development by Ofil's R&D high level team. Available as tailor-made or as Commercial-Off-The-Shelf (COTS) product. (read more...)

The first micro HD corona camera for sUAS

micROM for UAV

micROMHD is a perfect match for UAS, making UV imaging from air easier than ever. micROMHD assists UAS operators collect data efficiently and economically. micROMHD provides in real time accurate clear HD images of corona and of problems' locations.

  • Bi-Spectral solar blind UV-Visible
  • Micro weight
  • micro size
  • Wide FOV
  • Low power consumption
  • Multiple communication protocols
  • High Definition (HD) video
  • UV noise reduction
  • Onboard video recording and storing
  • Optical & digital zoom
  • Ambient conditions & GPS data embedded
  • Easy integration on UAS
Iso 9001
professional training

UV technology and the corona detection methodology

CITI Class

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advantages of Ofil's Cameras
  • You can instantaneously troubleshoot
  • You are able to pinpoint insulation damages
  • You get flashing signals of existing electrical & mechanical faults
  • Work safely, decrease contact with dangerous HV components, mostly in hazardous environments
  • You see where the weak points are, those that should be monitored
  • Operate under absolute regular load conditions, hence Corona is a Voltage dependent phenomenon
  • Simple and intutive to use
  • You get immediate and readable results
  • You know that the information you get is true and reliable