This series of transformers is an indoor air self cooling type, suitable for circuits with AC frequency of 50Hz~60Hz and voltage of 1000V and below. It is a commonly used three-phase power transformer for general electrical appliances or lighting, and can also be used as a small power source.

Normal working conditions and installation conditions

1. The altitude shall not exceed 2000m;

2. Surrounding air temperature:

The upper limit of ambient air temperature shall not exceed+40 ℃;

The average temperature of the surrounding air for 24 hours shall not exceed+35 ℃;

The lower limit of ambient temperature shall not be lower than -5 ℃;

3. The relative humidity of the air should not exceed 90%;

4. The ambient air does not contain gases or dust that corrode metals or damage insulation;

5. During use, precautions should be taken to prevent collisions and severe vibrations, as well as to prevent erosion from water, rain, and snow;

6. The waveform of the power supply voltage is approximately a sine wave.

Structural characteristics

This series of transformers can be made into open and protective types, with advantages such as low loss, low noise, good fire resistance, and no environmental pollution. Among them, the protective type is made of steel plate processed into a box shell, and the transformer is inside the box shell. There are inlet and outlet holes outside the box shell for installing power circuits. In addition, protective devices can be equipped with voltmeters, ammeters, temperature controllers, and cooling fans according to user requirements, as well as steering wheels for easy movement.