There are several types of waterproof transformers
1. Potting transformers
Small waterproof transformers, their main purpose is to prevent moisture. The main application is PCB circuit board. The transformer uses a high-frequency inductance transformer, or an EI low-frequency transformer below 5W. The protective shell (outer cover) generally uses a plastic shell or an iron shell. The transformer skeleton adopts a pin type, and the input and output are pinned out.
2. Toroidal waterproof transformer
The waterproof transformer is made of toroidal transformer. Its main purpose is to prevent rain or waterproof immersion. It is mainly used in outdoor lighting fixtures and urban areas. Lighting projects, mining areas, ship equipment, industrial atomizing humidifiers. The capacity is generally 40VA to 2000VA, and the protection level is IP67. The toroidal waterproof transformer is specially designed for outdoor rain (outdoor wall hanging), water immersion (pool, riverside, seaside), high air humidity and other applications.
How to connect a waterproof transformer
The wiring of the waterproof transformer is very simple. First connect the white input end with plug to the mains, and the blue output end to the lamp to see if it can Normal use; when the transformer can be used normally, you can cut off the input plug, and then place the connecting leads in water. Note that the input end is connected to the mains and the output end is connected to the lamp. Do not connect the input and output ends reversely.
Use environment of waterproof transformer
1. The ambient air temperature is -30℃ to +40℃, and the average value over 24 hours does not exceed +35℃; if it exceeds The load capacity of the transformer decreases at +40°C, but the toroidal transformer can still start and work normally in a low temperature environment of -30°C. Good low-temperature characteristics are the advantages of the toroidal transformer.
2. It is recommended that the maximum air humidity around the waterproof transformer should not exceed 90%, and the monthly average humidity should not exceed 75%. In environments with high humidity, it is recommended to use waterproof transformers, which have no requirements on air humidity.
Precautions for waterproof transformer installation
1. The grid input voltage at the installation site should not exceed 10% of the rated voltage of the waterproof transformer (except for those with customized characteristics) ;
2. The load power and current at the installation site should not exceed the rated power and rated current of the waterproof transformer;
3. It is not recommended to install it in a sealed or completely airless place. (Aluminum shell waterproof transformer can be installed underground);
4.The selection of water transformer should consider the matching problem with the on-site load;
5. During installation, the input and output leads should be installed strictly in accordance with the nameplate markings;
6. Pay attention to lightness during on-site installation. Handle it with care to prevent damage caused by human collision.
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