Box-type substation, 315kva-1250KVA, distribution transformers and low-voltage power distribution devices, suitable for mines, factories, enterprises, oil and gas fields, wind turbines, and manufacturers' customization. Box-type substation, 315kva-1250KVA, distribution transformers and low-voltage power distribution devices, suitable for mines, factories, enterprises, oil and gas fields, wind turbines, and manufacturers' customization.