The debate between dry-type transformers and oil-immersed transformers is not a new topic. But why do many factories still use Oil Immersed Transformers? To put it simply, one reason is that they are accustomed to using the old equipment, and the other is that they are afraid that replacing new ones will cause problems. But the issues with oil-immersed transformers are known to everyone: oil leakage, the need for regular oil filtering, high fire distance requirements, and concerns about heat dissipation in summer. If something goes wrong, either the plant has to stop production or it has to spend money to have it repaired. The power plant, which is already not in a favorable financial situation, can't afford such disruptions.
What do customers fear the most? They fear that the Dry Type Transformer they buy is a "reduced version" - copper-clad aluminum is sold as copper, iron chips are of inferior quality, and the temperature rise test is falsified. What's even more fatal is that small factories cut corners and the transformer starts to make loud noises after two years, with severe vibrations that can be heard as a buzzing sound. You have painstakingly made a budget, but ended up buying a burden.
The Hualai Electric Technology Co.,ltd SC11 dry-type transformer was developed to solve these troublesome issues. With a 80kVA specification, it is particularly suitable for community power distribution, small factories, and charging station support. The solution is straightforward: use vacuum cast epoxy resin to completely seal the coil, which does not absorb moisture or accumulate dust, and says goodbye to the oil and dust in the air. It comes with a forced air cooling design, which can withstand even the hottest summers, unlike oil-immersed transformers that rely on oil temperature. The advantages that are practical include three points: no need to dig oil pools, no need for fireproof doors, and no need to send someone to wipe oil stains every month.
How about the effect? You can feel it on the day you install it - the startup is quiet, the operation is also quiet, unlike the noisy oil-immersed transformers. Over the course of a year, you can see the difference in the electricity bill, as the no-load loss and load loss have been significantly reduced. More importantly, you no longer have to worry about oil leakage causing fires, and you can simply open the door and take a look when inspecting, saving time and labor, which can be used for other good things.
By the way, don't think that we only make this model. The Hualai Electric Technology Co.,ltd box type substation also sells well with consistent quality. If you have a more generous budget, you may consider the Amorphous Alloy Dry type Transformer. It further cuts no load loss and fits projects running frequently under light load conditions. For complete power distribution projects, we can also supply High Low Voltage Distribution Cabinets and Photovoltaic Prefabricated Cabins. We offer one stop full scope supply, so you do not need to coordinate with multiple suppliers.
The product features can be summarized into three points：
Epoxy resin casting， moisture-proof and flame-retardant， not afraid of southern rain-soaked weather， and not afraid of the large dust in northern areas.
It comes with a temperature control and strong air cooling system， which automatically starts when the load is high， without the need for manual intervention.
It has full compatibility， easily integrates with existing low-voltage cabinets and capacitor cabinets， and does not require major renovations of the old power plant.
Here are a few tips：
For 80kVA dry-type transformers， it is generally not recommended to operate beyond 110% overload for a long time， even if the heat dissipation is good， there must be a safety margin left.
Clean the dust on the coil surface once every six months with a dry cloth， do not use water to rinse， nor use compressed air to blow hard， as this may damage the insulation layer.
In the end， changing the transformer is not about following trends， but about calculating the long-term account. The Hualai Electric Technology Co.,ltd SC11 is not expensive， reliable， and hassle-free. Once you use it， you will know that "quietness" and "energy saving" can come at the same time.
