Distribution transformers are one of the important equipment in the power supply and distribution systems of industrial and mining enterprises and civil buildings. They reduce the network voltage of 10 (6) kV or 35kV to the 230/400V bus voltage used by users. This type of product is suitable for AC 50 (60) Hz, three-phase maximum rated capacity 2500kVA (single-phase maximum rated capacity 833kVA, generally not recommended to use single-phase transformers), and can be used indoors (outdoors). When the capacity is 315kVA or below, it can be installed on the pole, with an ambient temperature of no more than 40 ℃ and no less than -25 ℃, a maximum daily average temperature of 30 ℃, a maximum annual average temperature of 20 ℃, a relative humidity of no more than 90% (ambient temperature of 25 ℃), and an altitude of no more than 1000m. If it does not comply with the above usage conditions, appropriate quota adjustments should be made in accordance with the relevant provisions of GB6450-86
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