SGB10type,11type grade H insulation dry-type trans

1.Indusrial frequency withstand voltage:high voltage 35KV/60s 2.High voltage:35KV/60s3.Low voltage:3KV/60s4.Connection symbol:Dyn11 or Yyn05.Tapping voltage range:±5% or ±2×2.5%6.Phase:three phase7.Frequency:50Hz8.Insulation Heat-Resistant class:H level;Coil maximum temperature rise:125K; Insulation system temperature limit:180oC9.Product grade:IP20 or IP2310.Product structure:1. This product use high magnetic conductive and good quality cold rolled oriented silicon steel piece.Using all inclined joint multi-step connection.There is anticorrosive on core surface in order to moisture proof and antirust.It can guarantee reliable operation in moist environment. 2. Using America du pont NOMEX paper for major insulation system,bith insulation material of high pressure and low pressure winding are level H insulation.Coil is done vacuum pressure impregnation treatment.So that it increase the insulation strength and mechanical strength,resistance short circuit ability and lighting impulse ability11.Product feature: 1. Level H insulation Heat-Resistant Coil Maximum temperature rise:125K Hightest temperature 180oC Major insulation material is level C (heat-resistant can reach 220oC)of America du point NOMEX paper.Transformer can flame retardant in operation,and will not be explosion and release harmful gas. This product is safety. 2. The operation noise of product is lower than national standard.It can be recycled in later period of service life. 3. Product uses NOMEX insulation material structure.Coil is done vacuum pressure impregnation treatment in order to strengthen seal level of conductor and mechanical strength of coil.4. It is good Heat-Resistant capability,ultimate strength,high insulation capability,good heat emission condition,strong capability of resisting impact.It is durability. 5. The design is compact.It is low loss,energy saving product.12.Using condition: 1. indoor using2. Altitude can not be over 1000m,high pressure insulation site altitude can net beover 4000m 3. Relative Humidity,no more than 95%4. Seismic Intensity:7.