Is Your Cast Resin Transformer Failing? Watch Out for These Signs

Power distribution is crucial for a wide range of residential, commercial and industrial applications. If you are looking for something different than the standard electric power distribution, distribution transformers are an alternative to consider, particularly for medium-voltage applications. Generally, you can find several options in the markets when looking for power distribution transformers. However, cast resin transformers have become a go-to solution for many people. Compared to other options like oil-filled transformers, cast resin transformers are more reliable and versatile, have minimal fire risks, are easier to maintain with low operating costs and don't require cooling liquids, among several other benefits. However, like all transformers, your cast resin transformer may develop a few problems down the line. Here are quick ways you can tell that it's failing.

Discoloured Insulation

Colour changes to your transformer's insulation are the first red flags of a faulty issue. Generally, discolouration occurs from an overloaded and overheating transformer. As your unit overheats, the excess heat will rise to the top, causing the insulations to discolour. And usually, overloading may result from using your transformer for extended periods than what's recommended. You may also be using it for high-voltage applications that it's not designed for. Therefore, constantly assess your needs beforehand to ensure you select a unit that meets your application's demands. What's more, follow all the manufacturer's recommendations regarding its usage.

Strange Sounds

One of the easiest ways to notice a failing transformer is to listen to the sound it produces when it's operating. Generally, your cast resin transformer may not be completely silent when operating. You can expect some level of noise when the unit is running. However, you should be alarmed if you notice any strange or unusual noises. For instance, did your unit's pitch or tone change during operation? This could be an indicator that your transformer is in distress. Therefore, you should ensure it's operating within its limit. You may hear several other sounds coming from your unit, so watch out for such and inform a technician as soon as you notice anything out of the ordinary.

Vibration Changes

Like sounds, unusual or excessive vibrations signify a problematic transformer. In most cases, it's usually because of worn-out or damaged rubber pads on your unit's runners. These pads are designed to minimise vibrations when the transformer is running. Therefore, make it a habit to inspect these pads regularly because they tend to wear out over time.

Contact power transformer suppliers near you to learn more.