Thermography for reliable power distribution and power generation

For energy and utility companies, security of supply and thus trouble-free operation of the power grid is a top priority. Therefore, periodic checks of existing installations and inspections during the acceptance of new installations are indispensable. Whether in the generation, transmission or distribution of electrical energy.

Most failures due to malfunction, wear or material fatigue are preceded by thermal anomalies. Thermographic inspection with thermal imagers (infrared thermography) of these anomalies enables reliable and simple assessment of the heating condition of components on high-voltage installations, e.g. transformers, substations and overhead lines. 

Preventive maintenance with thermal imagers:

Thermographic measurements using thermal imagers can be carried out during operation and from a safe distance. Critical electrical and mechanical components or connections are tested. In this way, measures can be taken in good time in the event of conspicuous anomalies in order to minimize failure and safety risks.

Contact us today to learn more about how we can help you optimize your maintenance processes.

Power distribution systems

Thermographic inspection – to ensure smooth operation

Thermal image power distribution system
Assess heating on disconnectors and circuit breakers from a safe distance
Thermal image power distribution system
Non-contact inspection of transformers, insulators and screw connections
Energie inspection ropes
Precisely identify material fatigue and cable ruptures

This is how it works in practice

Application example high-voltage

Testing high-voltage plants with thermal imagers from Testo.

Application example distant objects

Thermography of distant objects.

Customer reference Energy provider badenovaWÄRMEPLUS GmbH & Co. KG

Versatile use of the thermal imager testo 883 in preventive maintenance

Best image quality and exchangeable lenses.

With the thermal imagers from Testo, you won't miss a thing. Thanks to high resolution and manual focus, every thermal image is razor-sharp, and with the exchangeable lenses, you discover every anomaly easily and efficiently, even from greater distances.

testo 883

  • Infrared resolution of 320 x 240 pixels - expandable to 640 x 480 pixels with integrated testo SuperResolution technology
  • Manual focus and telephoto lens
  • Second screen function with testo Thermography App

testo 890

  • Infrared resolution of 640 x 480 pixels - expandable to 1280 x 960 pixels with integrated testo SuperResolution technology
  • Manual focus, autofocus and SuperTele lens
  • Rotatable and tiltable display, ergonomic rotatable grip
FOV calculator for Testo thermal imagers

FOV calculator for Testo thermal imagers

The FOV calculator shows you quickly and easily just how small the measurement object can be in order to be detected (IFOV geo) and reliably measured (IFOV meas) at the selected distance. Try it out for yourself [here] and put together the kit consisting of imager and lens that is right for you.

Other advantages of Testo thermal imagers

testo IRSoft professional software

Use the testo IRSoft report wizard to generate professional reports quickly and easily – or use the software’s report designer to create customized templates in line with your own personal requirements. The software can be downloaded free of charge and without a licence.

testo Thermography App – be smart and networked

With the testo Thermography App you can quickly and easily share images from your smartphone or tablet with your colleagues
Hot spot function

Keeping limit values safely in view

The hot spot function immediately displays the hottest spot in the image. In addition, points that exceed defined limits can be highlighted in color using the alarm function.

Intuitive operation

Operating the testo 883
With touch display and Testo joystick

Fold-out display and rotatable handle

Fold-out display and rotatable handle
The rotatable, fold-out display and the ergonomic rotatable handle allow measurements in difficult-to-access places.

Super-telephoto lens

Super-telephoto lens

6.6° x 5° super-telephoto lens:

  • Small field of view for maximum resolution
  • Particularly suitable for measurements on objects that are far away, e.g. power lines
  • Easy to handle: no additional lens holder needed

Power generation

Maintenance of mechanical components

Power generation
Thermal image power generation

Heat generation in mechanical components in power-generating plants may indicate an elevated level of stress. This is caused, for example, by friction, faulty alignment, component tolerances or a lack of lubricant.

The main advantage of infrared measurement: it is non-contact and can therefore be carried out during operation and from a safe distance.

Maintenance of electrical installations

Electrical installation
Thermal image electrical

Testo thermal imagers facilitate evaluation of the heat status of low, medium and high-voltage systems. Thermographic images lead to the early detection of defective components or connections, so that the necessary preventive measures can be introduced in a targeted way.

This minimises dangerous fire risks and avoids costly production downtimes for energy producers.