Transformer 101: On Ageing, Testing, and Leak Repair

Transmission and distribution of electricity would be inefficient and unreliable without transformers, which is why they are an essential piece of electrical equipment. Imagine what would happen if transformers break down and stop working entirely. Electrical networks and power will go down with it. This underscores the importance of immediate transformer repair to restore operation.

transformer repair

The chances of a transformer not working as well as expected greatly depends on its maintenance and care. Even if it doesn’t have rotating parts, there are several factors that can cause wear and tear, such as short circuits and over voltages in the electrical network and ageing that causes degradation of the transformer’s internal condition. So, apart from transformer repair in Australia, you also need to schedule regular testing and maintenance programs.

What is the main point of concern in ageing?

Among the many parts that make up a transformer, the insulation system is the most vulnerable to ageing. This because it is typically based on organic products Once these products degrade over time they will lose their ability to withstand stresses that a transformer will be subjected to, such as short-circuits, vibrations, energising and many others.

There are ways to reverse ageing, but it will depend on the type of insulation. Ageing of mineral oil can be reversed through oil reclamation. Paper insulation, on the other hand, is irreversible. With proper care and regular maintenance, however, ageing can be slowed down.

Why is electrical testing essential?

There’s no better way to determine if and when a transformer is ageing than to run electrical tests. Done with accuracy it can provide valuable data on insulation (DC Megger), power factor, resistive and capacitive loss, trip levels and accuracy of relays, and the relationship of primary and secondary voltages.

The data gathered is then compared with manufacturers’ specifications to identify if there is a need for calibration, to find transformer repair, and/or simple adjustments.

Why is quick transformer repair critical during an oil leak?

Is the transformer leaking oil? There are many reasons this can happen and one of them is general wear and tear which still relates to ageing. Regardless of how the oil leak came to be, quick patch work must be done. This is because failure to do so can lead to serious consequences.

  • Potential environmental hazards with oil leaking into groundwater, stormwater, streams, and soil
  • Contamination of groundwater when oil is not cleaned up after the leak is plugged
  • Moisture and other debris can get into the transformer affecting its performance

For these reasons, a transformer putty must be applied to repair leaks. TEN The Energy Network group not only offers the best transformer repair but also transformer putty and a dielectric seal.

In summary, a transformer is vulnerable to ageing, but its service life can be extended with proper maintenance and regular testings. In the event of an oil leak, quick transformer repair must be done to prevent further damage to the electrical equipment and mitigate environmental hazards.

For all these activities, you can rely on TEN Group for the equipment and services you need to test, maintain, and repair transformers. For your electrical needs, visit us at https://www.tengroup.com.au/categories/line-materials/sealants-repair-kits/powerpatch-transformer-repair.

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