Yuebian Electric Co.,Ltd is one of the leading China electricity transformer manufacturers and suppliers, welcome to check electricity transformer price with us.7.S11 11kv Oil Immersed Distribution Transformer50KVA 11KV S11M oil immersed distribution transformer for the important equipment in the power distribution system for distribution network and industrial and mining enterprises, transformer is widely used in industrial and mining enterprises, agriculture and civil buildings can also be used in petroleum, chemical industry, oil chemical multi place.REFERENCESISO 1461: Hot dip galvanized coatings on fabricated iron and steel articles – Specifications and test methods.IEC 60076: Power transformers.IEC 60044: Instrument transformers.IEC 60296: Specification for unused mineral insulating oil for transformers and switchgear.IEC 60354: Loading guide for oil – immersed power transformers.IEC 60214: Tap-changers - Part 1: Performance requirements and test methods, Part 2: Application guide.IEC 60512: Connectors for electronic equipment.ROUTINE TEST to IEC 60076 (to be done during acceptance testing at factory)• Measurement of winding resistance• Ratio test• Vector group• Separate source voltage withstand test• Induced over-voltage• Insulation resistance• Oil leakage test on fully assembled transformer for 12 hours• Measurement of impedance voltage• Magnetic balance• Measurement of no-load loss and current• Measurement of load loss (at normal & extreme taps)• Tests on on-load tap-changer• Tests on on-load tap-changer remote control panel• Efficiency at 50%, 75%, 100% loading at unity p.f and rated terminal voltage (Corrected to 75C)• Lightning impulse withstand testTechnical Parameters: Rated capacity (kVA)Voltage combination and tap rangeConnection GroupNo-load loss (W)75oC load loss (W)No-load current (%)Impedance voltage (%)High voltage (kV)Tap (%)Low voltage (kV)106 6.3 6.6 10 10.5 11±5 ±2×2.50.4 0.69Yyn0 Dyn11 Yzn1155310/3252.842070480/5002.530100600/6302.350130870/9102631501040/10901.9801801250/13101.91002001500/15801.81252401800/18901.71602802200/23101.62003402600/27301.52504003050/32001.43154803650/38301.44005704300/45201.35006805150/54101.263081062001.14.5800980750011000115010300112501360120000.916001640145000.820002000174000.7525002400202000.631502800240000.5
