S(F)Z9-6300~31500/110, 3-Phases, Double Windings,

Technical Characteristics:Low loss: The no-load loss reduced by about 40%, and the load loss reduced by 15%, compares to the actual National Standards GB6451-1999.Low noise: The noise level achieved below 60dB, dropped by nearly 20dB compares to the National Standards. We can also manufacture transformers (below 55dB) to meet customers' requirements.Low partial discharge: The full procedure of 110kV products is completed in a depurated workshop, and the metal components, insulation components of the active part are completely rounded end. The partial discharge is controlled below 100pc.Good Aesthetic: Corrugated tank, shot blast cleaning, electrostatic powder spraying, wide slice radiator and never-fading.No leakage: All the sealing is fixed, the rims use two sealing and all the sealing is imported. Seriously promise to be no leakage.Windings: HV winding adopts interleaved-continuous or inside continuous model, which improves the winding vertical capacitance distribution under the impulse voltage. Windings are oil-cycle structure so that they can reduce winding temperature rise. The products life is 30 years. The inside of winding has hard supporting and swallow-tail cushion, insulation of the top and the bottom ends are platform pressing plates, makes high mechanical strength and resistance to the sudden short circuit ability. Winding internal insulation parts and active parts of insulation are rounded to reduce partial discharge.Active part: The active part assembled whole and dried under invariable pressure to ensure symmetrically shrink of windings with less rebound, so effectively improve electrical strength and the short circuit withstand ability.Core: High grade cold-rolled grain-oriented silicon steel sheets are used as core plates. The core plates are made without stamped holes, thereby reducing core loss and the risk of core-bolt short. The sheets are cut by automatic cut-to-length line, insuring the burrs to be well below 0.02mm.To reduce the increase of loss caused by handing the sheets; the core is stacked without the upper yoke. Winding block can be mounted on each core limb soon after the stacked core has been erected, eliminating the conventional process of dismantling the upper yoke sheets after erection of the core.Tanks: Tanks structures are bell type and barrel type. The plates are curved to corrugated wall. All the sealing is fixed. Metal parts are round horn and go hair. Welding seam and sealed place pass three leakage testing (fluorescence, positive pressure, and negative pressure). The paint is according to the electrical appliances antirust requirements.Technical Parameter of S (F) Z9-6300 31500/110, 3-Phases, Double Windings, On-load Tap-Changing Power TransformerModelRated Capacity(kVA)Voltage CombinationConnection LabelNo-Load Loss(kW)Load Loss(kW)No-Load Current(A)Short Circuit Impedance(%)Weight(kg)Overall Dimension(mm)Rail Gauge(mm)H.V.(kV)Tapping(%)L.V.(kV)CoreOilTotalS(F)Z9-6300/1106300110±8×1.256.36.610.511Ynd119.8036.80.9810.5101406350201004500×2850×49102000×1475S(F)Z9-8000/110800011.7045.000.98118608390241604580×2860×50202000×1475S(F)Z9-10000/1101000014.1353.200.91137408290267004710×2860×50902000×1475S(F)Z9-12500/1101250016.3863.000.91131508785289654810×2890×52102000×1475S(F)Z9-16000/1101600019.8077.350.84168708965328005080×2990×54302000×1475S(F)Z9-20000/1102000023.4093.600.84176009700369005140×3210×56102000×1475S(F)Z9-25000/1102500027.30111.800.772269010750408005180×3300×56902000×1475S(F)Z9-31500/1103150032.95133.500.772750014900500005310×3480×56902000×1475Tel:+86 248980 8899 +86 159 4035 1777+86137 0403 3733 Fax:+86 24 8980 8555