S11-M 3 Phase 11kv 33kv 100-3150kVA China Oil Immersed Power Transformer

Product DescriptionAs it doesn't need oil conservator, the height of transformer is reduced, and as the transformer oil doesn't contract with air, the oil ageing is retarded, thus prolonging the service life of transformer.This product is widely used in urban power grid reconstruction, residential district, factory, high-rise building, mining factory, hotel, shopping mall, airport, railway, oil field, wharf, highway and other outdoor places.Model DescriptionTechnical parameters and structure Product features 1. It's an environment-friendly transformer with low no-load loss, no-load current and noise;2. No oil storage box to save space;3. Whole sealed with vacuum oil filling, high stability of insulation;4. Adopts the corrugations on the oil tank as its heat-radiation parts, corrugations can expand or contract accord to the change of oil volume5. Fully sealed structure, maintenance free;6. With oil level gauge to ensure the safety running.Product Standards1. Production design standards:JB8749-1998 General technical requirements for voltage regulatorsGB1094-2013 Power TransformerGB/T6451-2008 Three-phase oil-immersed power transformer technical parameters and requirementsGB/T17468-1998 Guidelines for selection of power transformersGB10230-2007 On-load tap-changerGB/T1058-1989 Guidelines for the application of on-load tap-changersDL/T572-2010 Operation Regulations for Power Transformers2. Acceptance criteria:The voltage of the SVR line automatic voltage regulator installation point meets the requirements of the national standard GB/T12325-2008 power supply voltage deviation standard: the sum of the absolute value of the positive and negative deviations of the power supply voltage of 35kV and above does not exceed 10% of the rated voltage; 20kV and below three The allowable deviation of the phase power supply voltage is ±7% of the rated voltage; the allowable deviation of the 220V single-phase power supply voltage is +7% and - 10% of the rated voltage.Environment condition1.High ambient temperature: +40ºC2.Low ambient temperature: -25ºC3.Altitude: