Combined transformer, also known as American box change, is to put the transformer in American box body, high voltage load switch and fuse element is placed within the transformer oil tank, together by immersion in oil, much less element size, the more compact structure, beautiful shape, small volume, convenient installation, flexible and fully insulated, fully sealed structure, safe and reliable, convenient operation, and maintenance free.
It is widely used in residential areas, high industry centers, factories and mines, airports, stations, schools and other places, and is also suitable for urban power grid transformation.
Compact structure, small volume, convenient installation, flexible, can be used for both the ring network, and can be used for the terminal, conversion is very convenient, improve the reliability of power supply.
All insulation, fully sealed structure, safe and reliable, maintenance free, reliable protection of personal safety, high side adopts double fuse protection, inserted fuse fuse for unika fuse (temperature, current), backup fuse current-limiting fuse, reduce the operation cost, high voltage into the line structure of cable connectors, fully insulated, safe and reliable, easy to operate.
The special process of vacuum drying and vacuum oil filling is adopted. Our company extends the process used in 110kV products to 10kV products to provide strong guarantee for improving product quality.
The transformer is three - phase three - phase three - phase five - column structure, the iron core adopts ladder joint process or rolled iron core process, low noise, low loss, short circuit and overload resistance.
The box body can be designed according to the requirements of the operating environment with anti-corrosion design and special painting treatment, with the "three prevention" function, that is, anti-condensation, anti-salt fog, anti-mold function, and can meet the requirements of high temperature, high humidity environment anti-corrosion.
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Combined Pad Mounted Substation(American Type)