YB25 (8DJ20) -12 Тип коробки подстанция

YB25(8DJ20)-12 box type electric substation is a kind of complete set of products consisiting of switchgear,transformer and low voltage electrical equipments.As the power distribution equipments of the power departments including city building,small and medium-sized plants,mine and oil field and so on,it has the features of strong systematics,small volumn and tight construction,fine reliability,little workload on the spot,short period of installing and debugging,being removable and so on.Shape and color can be changed appropriately accordingly in order to accommodate to the environment.The protection grade of the external shell is IP23 OR IP33.the protection of hv chamber is IP2X. Using condition: a.ambient temperature-25oC-+40oC b.elevation ≤1000m c.outdoor wind speed ≤35m/s d.relative humidity ≤90%(25oC) e.the earthquake does not exceed degree 8 f.no fire,explosion,serious pollution,chemical erosion or fierce vibration