10kV-35kV Power Transformer can be devided into 10-35KV Series Off-circuit Transformer and 10-35KV Series on-load-tap-Chang Transformer.

10-35KV Series Off-circuit Transformer are in accordance with the National Standards GB1094 “Power Transformer” , GB/T6451 “Technical Specifications and Requirement for Three Phase Oil-immersed Power Transformer’”,and International Standard IEC60072,IEC76.Special care is taken in the choice of material,manufactureing technology and construction.So that the performance characteristics of S9 and SZ9 transformer can match with the highest standard of the international market.Low loss and high efficient means substantial saving in electrical energy and low operating cost,the transformers are recommended by relevant national authority because of their higher economy.

10-35KV Series on-load-tap-Chang Transformer are in accordance with National Standards GB1094 “Power Trans- formers” and GB/T6451 “Technical Specifi- cations and Requirements for Three Phase Oil-immersed Power Transformers” ,and International Standard IEC60072,IEC76. The voltage regulation range is 10±4×2.5% kV for 10 kV class and 5±3×2.5% kV for 35 kV class. Voltage regulation is effected by adj- usting the on-load tap changer on the high voltage side. Adjustment can be made manually or motor-operated, the output voltage on the secondary side at a required stable level. Therefore they are widely used in places where requirement of voltage quality is emphasized, such as institutes, building, hotels, hospital and factories. These transformers are new products and have better economy in operation.

Features:

Superior Technical and economic performance: Based on S9 series,the S11 series products’ no-load loss reduced by 30% averagely, and the no-load current ratio decreased 70-85% than S9.

Long service life: The transformer tank with fully sealed structure, transformer oil is not in contact with air,so that extend the service life.

High reliability:The tank sealing parts are improved,thus increase the reliability, and improve process level to ensure the reliability of the sealing.

Small covered area: S11-M series power transformer tank adopts wave plate type radiator, when the oil temperature changes, corrugated plate with heat bilges cold shrink oil can replace the function of the oil conservator,. The tank with ripple board type is of beautiful appearance and small covered areas.