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SZ11-MOil Immersed Power Transformer
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- 产品描述
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Product Overview
iron core:
The iron core is made of high-permeability grain-orientedcold-rolled silicon steel sheet, Fully oblique seam stackediron core,the iron core column has a multi-step circularcross section, and the iron yoke and the iron core have thesame cross section.
ICoil:
The firing group adopts corrugated oil passage, nonimmersed paint process, and tightening banding; the firinggroup is all concentric coils; the high-voltage firing grouphas taps corresponding to the requirements of the tapvoltage, which is led to the decomposition switch, and theswitch is installed on the cover it is necessary to cut off thepower before changing the tap Voltage
Oil tank:
The transformer oil tank is composed of corrugated walls,the surface is sprayed with dust, and the paint film is firm. The corrugated fins not only have the cooling function, but also have the breathing function. The elasticity of thecorrugated fins can compensate for the change intransformer oil volume caused by the temperature rise andfall.Therefore, the fully sealed transformer has no oilstorage cabinet, which reduces the overall temperature ofthe transformer.
Transformer adopts vacuum oil injection process duringpackaging, which completely removes the moisture in thetransformer, and the transformer oil is not in contact with air.Effectively prevent oxygen and moisture from intruding intothe transformer, resulting in degradation of transformerinsulation performance and aging of transformer oil, whichimproves the feasibility of transformer operation.
Insulation structure:
oil-immersed distribution transformer adopts A-levelinsulation structure; high voltage coil and low voltage coilare concentric; the space between coils is cardboard sleevesmall oil clearance oil partition structure.
Technical Parameters
Rated Capacity Voltage Combination Vector Group No-load Loss Load Loss No-load Current Impedance Voltage Exterior Size Total Weight (kVA) High voltage (kV) tap range Low Voltage (kV) (W) 75°C(W) (%) (%) (L*w*H) (kg) 200 10 ±4*2.5% 0.4 Yyn0
Dyn110.48 3.06 1.5 4 1650*870*1340 1040 250 0.56 3.6 1.4 1700*880*1490 1160 315 0.67 4.32 1.4 1750*900*1560 1360 400 0.8 5.22 1.3 1800*1060*1600 1550 500 0.96 6.21 1.2 1830*1080*1660 1820 630 1.2 7.65 1.1 4.5 1950*1120*1690 2170 800 1.4 9.36 1 2270*1240*1840 2590 1000 1.7 10.98 1 2310*1400*1900 3000 1250 1.95 13.05 0.9 2360*1460*1940 3630 1600 2.4 15.57 0.8 2430*1510*1990 4145 Note:For transformers with rated capacity of 500 kVAand below,the load loss above the ramp in the table is applicable to the Dyn11 connection group,and the load loss below the ramp is applicable to theYyno connection group.
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