Distribution transformers are of great support in power distribution systems. As the name suggests they are helpful in safe and reliable distribution of electricity across industrial sites, residential areas, and commercial spaces as well. But like every other electrical system, these transformers also require regular maintenance. And if ignored, they may fail to work efficiently, leading to several problems in the distribution of electricity. But when it comes to maintenance, one faces several challenges. Here, in this blog, we are sharing top 5 challenges in the maintenance of distribution transformer and how to fix them properly. At Mahendra Transformers, we not only believe in delivering premium quality transformers but we also ensure that we keep our customers update about its maintenance.
Components and external casing of transformer getting corroded
These transformers are constantly exposed to moisture and at times to water as well when placed outdoor. Though if you are buying from reliable distribution transformer manufacturers, you may not face such issues initially. But with time, when the corrosion-resistant coating wear off, the external casing and the components of transformers start getting rusted. It can damage other components as well and may affect the functioning of transformers. That is why, it is advised to opt for regular inspection. It will help you know when the transformers are getting corroded and you will be able to fix it on time by getting corrosion-resistance coating applied on it again. One must not avoid it when installing distribution transformers outdoors.
Leakage or contamination of oil
Distribution transformers that use oil based coolant often face the problem of oil getting contaminated over time. Especially when it gets exposed to moisture, oxygen, and heat, its property may change. This will reduce its insulation and cooling power, leading to overheating of components. Leakage of oil can also occur if the external casing is damaged due to rusting. This also leads to failure in offering insulation and can cause huge damage to components affecting the overall electrical system. To prevent this, regular oil testing is essential. It will ensure that there is no oil leakage and integrity of oil is maintained.
Maintenance of cooling system
When distribution transformers work constantly they generate high amount of heat which can cause damage to several parts of transformers. That is why, it is advised to check the cooling system which consists of radiators, fans, and oil pumps. If proper heat dissipation is not taking place, it will cause problem in working of transformers. To ensure proper and effective heat dissipation, one must clean all the clogged oil paths that lead to overheating. One must also test the fans and radiators to ensure they are working properly.
Overloading them beyond their capacity
All the transformers are designed with proper load capacity and it is advised to use them accordingly. Using them beyond their capacity during peak hours not only overload them. But it also leads to excess of heat generation and reduces its overall efficiency leading it to frequent maintenance. To deal with this problem, one must always invest in the distribution transformers of required load capacity. Also, monitor them closely to check if they are not overloaded and are working effectively.
Delaying minor maintenance requirements
Be it a small wear on transformer or entrance of moisture in it or problem in any small component, one must not ignore any of these. Problem occurs when we delay these small maintenance requirements which later on turn big causing huge damage to overall transformer. If you do not wish to waste your money on them, it is advised to schedule a timely maintenance so that all these problems can be fixed with ease.
Conclusion
Once you have learnt to deal with these top 5 maintenance challenges for distribution transformers, you need not worry about their performance at all. There are many transformer manufacturers who do offer after sales maintenance support like we at Mahendra Transformers. It is advised to buy from those manufacturers only so that you do not face such problems. Being one of the best distribution transformer manufacturers, we not deliver efficient transformers, but also ensure that we offer complete technical and maintenance support after sales as well.
