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35KV Oil-immersed Power Transformer

The 35KV oil-immersed power transformer is a cutting-edge product that has undergone significant improvements in design, materials, structure, and craftsmanship. It features a robust construction with high and low voltage clamps using steel straps for enhanced structural integrity, increased core fastening strength, and improved resistance to transportation impact. This product excels in short-circuit resistance, low power loss, minimal noise, reliable operation, and aesthetically pleasing appearance, meeting and even surpassing the advanced levels of similar products worldwide.

    Product Application

    This high-performance transformer is widely used in various industrial and commercial applications, including power plants, substations, factories, and large-scale infrastructure projects. It is designed to efficiently and safely transform electrical energy, ensuring a stable and reliable power supply for diverse operational needs.

    Product Advantages

    ● Strong Short-circuit Resistance: The transformer is engineered to withstand and mitigate the impact of short-circuit events, ensuring the safety and stability of the electrical system.
    ● Low Power Loss: With advanced design and materials, this transformer minimizes power loss, contributing to energy efficiency and cost savings.
    ● Minimal Noise: The innovative construction and components of the transformer result in reduced operational noise, creating a quieter working environment.
    ● Reliable Operation: Through rigorous testing and quality control, this product delivers consistent and dependable performance, meeting the demands of continuous operation.
    ● Aesthetic Design: The transformer’s exterior is thoughtfully designed to not only meet functional requirements but also enhance the visual appeal of the installation location.

    Product Features

    ● Advanced Design: The transformer incorporates state-of-the-art design elements to optimize performance and durability.
    ● Enhanced Structural Integrity: Utilizing steel straps for high and low voltage clamps, the transformer achieves a robust and secure structure, ensuring long-term reliability.
    ● Improved Core Fastening: The core fastening strength is significantly enhanced, enhancing the transformer’s ability to withstand transportation impact and environmental stress.
    ● Global Standards Compliance: This product meets and exceeds international standards, ensuring its suitability for diverse applications worldwide.
    In conclusion, the 35KV oil-immersed power transformer stands out as a high-performance, reliable, and aesthetically pleasing solution for various electrical power transformation needs. Its advanced design, robust construction, and exceptional performance make it a top choice for industrial and commercial applications globally.

    Normal service conditions

    Altitude
    No more than 1000m;
    Environmental temperature:
    The maximum temperature is+40℃;
    The maximum monthly average temperature is +30℃;
    The maximum annual average temperature is +20℃;
    The outdoor minimum temperature is -25℃。
    The waveform of power supply voltage is similar to sine wave.
    For three-phase transformer,its three-phase supply voltage should be approximately symmetrical. Installation environment:
    There is no obvious pollution in the installation envionment;
    The ground  acceleration ag  caused by earthquake is lower than 3m/s²in the horizontal direction and 1.5m/s² in the vertical direction.

    Executive standard

    GB/T1094.1    GB/T1094.2     GB/T1094.3     GB/T1094.5
    GB/T25289     GB/T6451        GB/T7595        GB20052
    JB/T3837       JB/T10088        IEC60076
    The transformer products produced by our company all meet the latest version of the above   standards.

    Special Conditions of Use

    Any special use conditions that need to meet the normal use conditions of the transformer shall be stated in the inquiry and order.

    Ordering instructions

    When ordering,the product model,rated capacity,rated voltage of high and low voltage,high voltage distribution range,phase number,frequency,connection group label,etc.shall be  provided.

    Model and meaning

    20KV-High-Voltage-Oil-immersed-Distribution-Transformerw3b

    35kV Oil-immersed power transformer

    Technical parameters of 35kV S11 series oil-immersed non-excitation voltage regulating distribution transformer
      Rated capacity kV.A Voltage combination kV   Connecting group Loss kW  

    No-load

    current

    %
     

    Short-circuit

    impedance %
    Weight kg   Overall dimension  Length×Width×Height   Gauge Vertical  Horizontal
    High  voltage Low voltage  

    No-load

      Load Body  weight Oi

    weight

    Total weight
    30 35
    38.5
    0.4 Dyn11
    Yyn0
    0.14

    0.89/0.84

    1.7 6.5 165 230 580 1320×550×1550   550/550
    50 0.16

    1.20/1.14

    1.3 230 265 730 1360×700×1680
    80 0.22

    1.80/1.71

    1.1 310 310 870 1395×730×1730
    100 0.23

    2.01/1.91

    1.1 370 340 1000 1440×760×1810
    125 0.27

    2.37/2.26

    1.0 440 380 1120 1450×800×1940     660/660
    160 0.28

    2.82/2.68

    1.0 540 415 1360 1470×800×2910
    200 0.34

    3.32/3.16

    1.0 635 455 1540 1500×800×2050
    250 0.40

    3.95/3.76

    0.95 725 490 1745 1530×830×2090
    315 0.48

    4.75/4.53

    0.95 825 525 1910 1550×870×2150
    400 0.58

    5.74/5.47

    0.85 980 595 2220 1600×940×2200     820/820
    500 0.68

    6.91/6.58

    0.85 1210 680 2640 1750×1000×2280
    630 0.83 7.86 0.65 1110 800 3175 2130×950×2400
    800 0.98 9.40 0.65 1625 850 3595 2210×1075×2450
    1000 1.15 11.50 0.65 1955 965 4260 2250×1090×2630
    1250 1.40 13.90 0.6 2250 1130 4835 2210×1740×2690   070/1070
    1600 1.69 16.60 0.6 2890 1260 5995 2250×2145×2700
    2000 1.99 19.7 0.55 3070 1330 6445 2320×2170×2750
    2500 2.36 23.2 0.55 3555 1390 7080 2340×2180×2510
    Note:
    ① High voltage can provide 5%or 2×2.5%voltage regulation range
    ② The load loss value above the diagonal line in the table is applicable to Dynl1 connection group,and the load loss value below the diagonal line is applicable to Yyn0 connection group.
    ③ The overall dimensions provided are only for reference when selecting models,and the final dimensions are subject to the product external drawing.
    Technical parameters of 35kV S11 series oil-immersed non-excitation voltage regulating power transformer
      Rated capacity kV.A Voltage combination kV   Connecting group Loss kW  

    No-load

    current

    %
     

    Short-circuit

    impedance %
    Weight kg   Overall dimension  Length x Width x Height   Gauge Vertical Horizontal
    High  voltage High

    voltage

    tap range
    Low

    voltage

     

    No-load

     

    Load 75℃

    Body  weight Oi weight Total  weight
    200 35  ±2×2.5 3.15
    6.3
    10.5



















    3.15
    3.3
    6.3
    6.6
    10.5
    Yd11 0.34 3.16 1.2 6.5 670 405 1445 1240×1270×1700   660/660
    250 0.41 3.75 1.1 735 410 1550 1290×1280×1810
    315 0.49 4.53 1.1 910 485 1855 1300×1350×1960
    400 0.58 5.47 1.0 1015 585 2000 2020×940×1990     820/820
    500 0.69 6.58 1.0 1225 675 2460 2150×1000×2040
    630 0.83 7.86 0.65 1335 695 2665 2260×1060×2050
    800 0.98 9.40 0.65 1695 825 3355 2330×1080×2130
    1000 1.15 11.50 0.65 1975 920 3785 2390×1100×2190
    1250 1.40 13.90 0.55 2155 990 4250 2450×1210×2210
    1600 1.69 16.60 0.45 2505 1120 4995 2475×1230×2420 10701070
    2000 2.17 18.30 0.45 2815 1155 5460 2380×2010×2430
    2500 2.56 19.60 0.45 3730 1370 6305 2460×2150×2520
    3150   35~ 38.5 3.04 23.00 0.45 7.0 4165 1650 8360 2550×2220×2540
    4000 3.62 27.30 0.45 5160 1970 9350 2670×2390×2630
    5000 4.32 31.30 0.45 6130 2215 10770 2870×2450×2930
    6300 5.24 35.00 0.45 8.0 8120 2705 13885 3100×2580×3070 1475/1475
    8000 35~ 38.5 YNd11 7.20 38.40 0.35 9760 2915 15510 3250×2680×3270
    10000 8.70 45.30 0.35 11025 3225 18150 3320×2720×3350
    12500 10.00 53.80 0.30 14170 4085 21760 3410×2950×3530
    16000 12.10 65.80 0.30 17735 4710 26350 3520×3180×3690
    20000 14.40 79.50 0.30 20430 5755 32560 3730×3560×4110
    25000 17.00 94.00 0.25 10.0 25265 7010 38885 4110×4120×4340

    2040/2040

    31500 20.20 112.0 0.25 30360 8515 46090 4760×4570×4510
    Note: 
    ① High voltage can  provide 5%or 2×2.5%voltage  regulation  range.
    ② For transformers with low voltage of 10.5kV,products with Dyn11 connection group can be provided.
    ③ The overall dimensions provided are only for reference when selecting models,and the final dimensions are subject to the product  external  drawing.
    Technical parameters of 35kV SZ11 series on-load voltage regulating oil-immersed power transformer
      Rated capacity kV.A Voltage  combination kV   Connecting group Loss kW  

    No-load

    current

    %
     

    Short-circuit

    impedance %
    Weight kg   Overall dimension  Length xWidth x Height   Gouge Vertical Horizontal
    High  voltage High  voltage tap  range Low

    voltage

     

    No-load

     

    Load 75℃

    Body  weight Oil  weight Total weight
    800 35 ±3 X 2.5           6.3
    10.5
    Yd11 1.25 9.88 0.9 6.5 1735 995 3625 2790×1220×2130     820/820
    1000 1.50 12.16 0.9 2015 1105 4055 2830×1240×2150
    1250 1.77 14.63 0.81 2190 1155 4580 2870×1310×2210
    1600 2.16 17.48 0.77 2535 1295 5245 2875×1310×2380
    2000 2.30 19.20 0.50 2855 1345 5935 2980×2880×2380
    2500 2.72 20.60 0.50 3815 1575 6745 3060×2190×2490

    1070/1070

    3150 35~ 38.5 3.23 24.70 0.50 7.0 4235 1860 8780 3180×2240×2510
    4000 3.87 29.10 0.50 5230 2260 9820 3270×2410×2600
    5000 4.64 34.20 0.50 6195 2545 11510 3490×2480×2840
    6300 5.63 36.70 0.50 8.0 8315 3095 14805 3710×2600×3005     475/1475
    8000 6.3
    6.6
    10.5
    11
    YNd11 7.87 40.60 0.40 9870 3480 16590 3850×2680×3230
    10000 9.28 48.00 0.40 11025 4160 19930 3960×2750×3310
    12500 10.0 56.80 0.35 14270 5265 24295 4035×2980×3530
    16000 13.1 70.30 0.35 17780 6280 28720 4140×3200×3660
    20000 15.5 82.70 0.30 20205 7415 37380 4070×3580×4170
    25000 18.3 97.8 0.30 10.0 24950 9030 43425 4710×4120×4310

    2040/2040

    31500 21.8 116.00 0.30 29820 11025 51555 5360×4570×4450
    Note  :
    ① For transformers with low voltage of 10.5kV,products with Dyn11 connection group can be provided. 
    ②The maximum current tap is -7.5%tap position.
    ③ The overall dimensions provided are only for reference when selecting models,and the final dimensions are subject to the product external drawing.

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