oil immersed type distribution transformer

Character: (1)Excellent radiation (2) The number of runs is cut by a half to reduce oil-leaking possibility Oil flow condition on the outer casing (3) Good outer casing strain ability (4)Unique radiator respiration effect xiwu grid oil immersed disctribution transformer is characterized by saving energy and electricity , being safe and reliable , light structures , and long service life and being maintenance –free. There are two strctures of hermetic power transformer: oil tank edge with welding seam and that with bolt fixation; customer can select according to specific requirements. As the inside of oil tank is hermetic and totally insulate from the environment , the air and water can be effectively prevented, the aging speed of oil and paper paper insulate can be slowed down, thus the service life of transformer can be largely extended. Application: be used in street, factory, countryside lighting and power.Technical data: Rated Capacity: 30 2500kVA; Rated voltage: 33,22, 11,10/0.4kV or other voltage combination in accordance to client needs Phase No single or three Rated frequency 50 or 60 HZ Vector group Dyn11, Yyn0 or others Short circuit impedance 4%, 4.5% or others in accordance to client needs Tapping voltage regulation type off-load or on-load efficiency at full load and P.F > 98.8% Ambient temp : -20-45 dgr Humidity >98% Tapping range +2*2.5% or others in accordance to client need Partial discharge less than 5PC Cooling type: oil