Transformers play a vital role in electrical systems as they are responsible for converting electrical energy from one voltage level to another to meet the needs of various electrical equipment. In this process, moisture resistance is a crucial factor, especially in humid environments such as humid climate conditions. Different types of transformers have varying degrees of moisture resistance, including open transformers, sealed transformers, and resin-encapsulated transformers.

Open transformers are a common and affordable option. This kind of transformer usually does not adopt special moisture-proof measures, but is impregnated with insulating paint. This treatment allows the open transformer to operate normally under relatively good indoor environmental conditions. However, due to their simple process and low manufacturing cost, open-type transformers generally have weak moisture-proof performance, so use in humid environments may lead to performance degradation or equipment failure.

Sealed transformers are the best choice for moisture resistance. This type of transformer is completely sealed within a metal box, effectively preventing moisture from penetrating. Although sealed transformers have excellent moisture-proof performance, due to their high manufacturing cost and large size, they are mainly used in situations that require extremely high moisture-proof performance, such as military equipment or special requirements.

Resin-encapsulated transformers are a good, cost-effective option between open and sealed transformers. After this kind of transformer is encapsulated with resin, it can greatly delay the penetration of moisture and reduce the impact of moisture on the inside of the transformer. Resin encapsulation not only improves the moisture-proof performance of the transformer, but also increases its insulation performance and heat dissipation capacity. Common resin encapsulation forms include coil end sealing type, transformer covering type, coil potting type and transformer potting type, among which the potting type has the best moisture-proof effect.

Choosing the appropriate transformer type depends on the specific application scenario and environmental conditions. In humid environments, especially where moisture-proof performance is required, sealed or resin-encapsulated transformers may be a better choice, while under relatively good environmental conditions, open transformers may be more economical and affordable. s Choice. Therefore, when designing and selecting transformers, various factors need to be considered comprehensively to ensure the normal operation and long-term stability of the equipment.