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Electrical Applications

Electrical systems Thermal imaging cameras are commonly used for inspections of electrical systems and components in all sizes and shapes. The multitude of possible applications for thermal imaging cameras within the range of electrical systems can be divided into two categories: high voltage and low voltage installations. High voltage installations Heat is an important factor in high voltage installations. When electrical current passes through a resistive element, it generates heat. An increased resistance results in an increase in heat. Over time the resistance of electrical connections will increase, due to loosening and corrosion for instance. The corresponding rise in temperature can cause components to fail, resulting in unplanned outages and even injuries. In addition, the energy spent on generating heat causes unnecessary energy losses. If left unchecked, the heat can even rise to the point where connections melt and break down; as a result, fires may break out. Examples of failures in high-voltage installations that can be detected with thermal imaging:

  • Oxidation of high voltage switches
  • Overheated connections
  • Incorrectly secured connections
  • Insulator defects

These and other issues can be spotted at an early stage with a thermal imaging camera. A thermal imaging camera will help you to accurately locate the problem, determine the severity of the problem, and establish the time frame in which the equipment should be repaired. A wide view of a substation can quickly show areas where unwanted high resistance connections exist. No other predictive maintenance technology is as effective for electrical inspections as thermal imaging. One of the many advantages of thermal imaging is the ability to perform inspections while electrical systems are under load. Since thermal imaging is a non-contact diagnostic method, a thermographer can quickly scan a particular piece of equipment from a safe distance, leave the hazardous area, return to his office and analyze the data without ever putting himself in harm’s way. Thermal imaging cameras allow you to inspect high voltage installations from a safe distance, increasing worker safety. Continuity is very important to utilities since many people rely on their services. Therefore thermal imaging inspections have become the core of utility predictive maintenance programs throughout the world. Thermal imaging cameras are used for inspections of electrical systems and components in all sizes and shapes and their use is by no means limited to large high voltage applications alone. Electrical cabinets and motor control centers are regularly scanned with a thermal imaging camera. If left unchecked, heat can rise to a point that connections melt and break down; as a result, fires may break out. Besides loose connections, electrical systems suffer from load imbalances, corrosion, and increases in impedance to current. Thermal inspections can quickly locate hot spots, determine the severity of the problem, and help establish the time frame in which the equipment should be repaired. Examples of failures in low voltage equipment that can be detected with thermal imaging:

  • High resistance connections
  • Corroded connections
  • Internal fuse damage
  • Internal circuit breaker faults
  • Poor connections and internal damage

These and other issues can be spotted at an early stage with a thermal imaging camera. This will help to prevent costly damages and to avoid dangerous situations. Whether you intend to use thermal imaging cameras for low voltage inspections in production plants, office facilities, hospitals, hotels or domestic residences, FLIR Systems has exactly the right thermal imaging camera for the job. References: Flir Systems

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