4 Signs of Transformer Failure

Transformers are an important part of electrical systems since they ensure that you can efficiently distribute electricity. However, like any piece of equipment, transformers can deteriorate over time and ultimately lead to failure. Transformer failure doesn’t just lead to a disruption in your power supply, but it can also pose serious safety risks.
That’s why identifying the early warning signs is critical to help prevent costly downtime, and also keep everyone safe. Here are some of the biggest telltale signs of potential failure and that you need to replace your transformer.
1. Frequent Overheating
Have you noticed that your transformers are generating considerably more heat than usual? Excessive heat is one of the primary signs that failure is on its way. That’s why it’s so important to monitor your transformer and perform routine maintenance.
While it’s normal for transformers to generate heat while they operate, excessive temperatures may indicate a much bigger problem. If a transformer is consistently operating in an extreme temperature, it will age at an accelerated rate, and eventually lead to full-fledged failure. Regular temperature monitoring is a must, which is why many businesses turn to thermal imaging to help detect abnormal heat levels as early on as possible.
2. Odd Sounds
If you’ve started noticing that your transformer is emitting an unusual sound that strays from the typical humming sound it creates, then this is a sign to look out for. If the typical humming sound suddenly becomes much louder, and irregular, and includes other sounds like buzzing, clicking, or even popping, it means it may have internal damage.
The reason for this could be anything from a loose component to electrical issues. Any kind of unusual sound should be investigated as soon as possible to ensure you avoid further damage.
3. Leaking
Transformers use oil and other fluids to stay cool and insulated. Yet, if a transformer has a damaged seal or excessive pressure buildup, leaking can start to occur. A drop in fluid levels can lead to significant overheating and reduce its ability to stay insulated, ultimately increasing the risk of transformer failure. Any time you notice a leak, it’s important that you identify where it’s coming from and what the cause is before it leads to further issues.
4. Power Loss
One of the most obvious signs that your transformer has gone out is loss of power. Unstable voltage levels or unexpected power interruptions are a big cause of transformer failures. These can be a cause of connection issues or plain old degradation. Unfortunately, if a transformer struggles to maintain the same voltage it may no longer be able to function efficiently, and that’s when a professional should be contacted to step in and assess the transformer. They’ll be able to determine whether it’s repairable, or whether a full transformer replacement is necessary.

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