What Are Differences Between Dry Capacitors And Oil Capacitors

May 30, 2022

In the field of AC Power Capacitors Aluminium Can, self-healing capacitors are mainly classified into two types based on their structure: oil capacitors and dry-type capacitors. The common dry-type capacitors on the market today mostly use non-liquid insulating materials for their internal fillers, such as inert gases (for example, sulfur hexafluoride, nitrogen), microcrystalline paraffin, and epoxy resin etc. For oil-immersed capacitors, the vast majority use vegetable oil as the impregnating agent.


Compared with oil-immersed capacitors, dry-type capacitors do not use environmentally harmful chemicals such as impregnating agents and paints in the production process. Considering environmental impact assessment indicators from multiple aspects, such as the selection of raw materials, production processes, energy consumption, performance throughout the life cycle, transportation, and final disposal, it can be said that dry-type capacitors have become a capacitor product with prominent environmental protection attributes due to their numerous advantages.


However, oil-immersed capacitors also have their unique advantages. Firstly, it has excellent heat dissipation performance, which can ensure that the capacitor dissipates heat efficiently during operation and maintains a stable operating state. Secondly, it has excellent insulation performance, which is crucial for ensuring the normal operation of Filter Capacitors Aluminium Can and extending their service life. However, oil-immersed capacitors also have some potential risks. Due to the presence of insulating oil components inside, if exposed to open flames, it may fuel the fire and subsequently cause a fire, posing certain safety hazards. In addition, during transportation or when encountering other unfavorable conditions, capacitors are prone to damage, which may lead to oil leakage and affect their normal use and performance.


Dry-type capacitors, on the other hand, have their unique characteristics. Although its heat dissipation performance is not as good as that of oil-immersed capacitors, and it requires a thicker polypropylene metallized film, due to the internal filling of gas or epoxy resin, it can suppress combustion when exposed to open flames, and there is no problem of oil leakage. In terms of safety, it has more advantages compared to oil-immersed Run Capacitor Round Aluminium Can.

 

Cylindrical Aluminum Case for AC Filter Capacitors

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Among the numerous power capacitor products, the aluminum alloy drawn shell oil-immersed capacitor, as a special type of oil-immersed capacitor, deserves your close attention. Its shell, made by a Run Capacitor Round Aluminium Can stretching process, not only has an exquisite appearance but also possesses excellent mechanical strength and corrosion resistance, effectively protecting the internal components. In practical applications, this capacitor not only ensures the heat dissipation and insulation advantages of oil-immersed capacitors but also effectively reduces the risk of damage caused by external forces such as collision and jolting through its sturdy casing, thereby minimizing the probability of oil leakage. For power systems that have high safety requirements and also value the comprehensive performance of products, aluminum alloy stretched shell oil-immersed capacitors are undoubtedly the ideal choice. They can not only meet your pursuit of high performance in power capacitors but also alleviate your concerns about the safety risks of oil-immersed capacitors to a certain extent. They are indispensable assistants for you to build a stable, efficient, and safe power system.

 

Power Film Capacitor Aluminium Can

 

 

 

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Ms. Tina from Xiamen Apollo

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