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high voltage dry transformer,benefits of dry type transformers,low voltage dry transformer

China Suppliers SC10, SCB10, SCB11 Dry Type Cast Transformers - Flame-Retardant, Maintenance-Free Solutions from Factory

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Overview
Introducing the SC10, SCB10 Series, and SCB11 thin-insulated dry-type transformers, designed and manufactured in China. These advanced transformers feature a flame-retardant, fire-proof, and explosion-proof design, ensuring they are maintenance-free and pollution-free. The compact size is attributed to the epoxy resin encapsulation of the coil, allowing for direct installation at the load center. Our scientifically engineered casting process results in minimal partial discharge, low noise levels, and excellent heat dissipation capacity. These transformers are capable of operating at 140% rated load for extended periods under forced air cooling conditions. Equipped with an intelligent temperature controller, they offer fault alarms, over-temperature alerts, and protection features. Centralized monitoring and control can be easily achieved through the R8485 serial interface connected to a computer. Due to these exceptional features, our dry-type transformers are widely utilized in various power transmission and transformation systems across China, including hotels, airports, high-rise buildings, commercial centers, residential areas, subways, smelting power plants, ships, and offshore drilling platforms, making us a leading supplier and factory in the industry.

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    Product Detail

    Transformer model meaning

    product-description1

    Product Standards

    ◇ GB/T10228-1997, GB6450-1986, JB/T10088-2004, GB4208-1993
    ◇ Rated high voltage: 10 (11, 10 .5, 6 . 6, 6 .3, 6)kV
    ◇ Rated low pressure: 0 .4kV
    ◇ Connection group: Dynl1orYY
    ◇ High voltage tapping range: ±5% or ±2×2 .5%
    ◇ Insulation level: LI75AC35/LI OAG5
    ◇ Frequency: 50Hz

    Product Features

    Iron Heart
    The core is made of imported high-quality cold-rolled silicon steel sheets, with full oblique joint structure, and the core column is made of The core surface is sealed with epoxy resin paint, which reduces the no-load loss and no-load Current and core noise, clips and fasteners are specially surface treated to further improve the product appearance quality.
    High voltage winding
    The high-voltage winding is vacuum cast with epoxy resin with filler, which greatly reduces the partial discharge and improves the electrical strength of the coil. The inner and outer walls of the winding are filled with glass fiber mesh panels, which enhances the mechanical strength of the coil and improves the product 's ability to resist sudden short circuits. The coil will never crack.
    Low voltage winding
    The low-voltage winding adopts a foil structure, which solves the problem of axial helix angle when winding, making the ampere-turn more balanced. At the same time, the coil adopts an axial cooling air duct to enhance the heat dissipation capacity. DMDEpoxy resin pre - impregnated cloth, integrally cured and formed.

    Main advantages of the product

    Low loss, low noise, and low partial discharge;
    High moisture resistance, high reliability and maintenance-free;
    The high pressure is a multi-layer segmented cylindrical structure;
    Low pressure is a foil structure with longitudinal airway;
    Flame retardant resin, curing molding;
    Multifunctional temperature protection control system;
    Square tube clamp structure;
    Low temperature and low noise.

    Overview

    The coil is wound on a high-precision winding machine, and the low-voltage winding adopts a foil winding structure. When the transformer capacity is large, there is a ventilation duct. After winding, it is vacuum dried. The entire pouring and curing process is operated in full accordance with the process requirements. All processes The process needs to be strictly monitored and adjusted according to the situation. The precision manufacturing process of casting makes the coil free of bubbles and holes, so that the finished transformer can achieve high-quality operation effect.

    ◇ Temperature control system and air cooling system
    The cross-flow top-blowing cooling fan is used, which has the characteristics of low noise, high wind pressure, beautiful appearance, etc. The overload capacity of the transformer is improved. The temperature control adopts an intelligent temperature controller to improve the safety and reliability of the transformer operation.
    ◇ Protect the housing and the busbar
    The protective shell provides further safety protection for the transformer, and the protection level is IP20, IP23 etc., the shell material has cold Rolled steel plate, stainless steel plate, etc. are available for users to choose. Low-voltage outlets use standard busbar outlets, side outlets and top outlets are both available, and special outlet methods can also be designed for users.
    ◇ Transformer output mode
    Conventional outgoing wires, standard closed busbars and standard side outgoing wires can be manufactured. ed according to different interface forms, and can also be customized according to the user. Users require special wiring design.
    product-description2

    Model meaning

    product-description3

    Product Standards

    ◇ Implementation standards:GB/T10228-1997, GB6450-1986; JB/T10088-2004, GB4208-1993
    ◇ Rated high voltage: 10 (11, 10 .5, 6 . 6, 6 .3, 6)kV
    ◇ Insulation level: LI75AC35/LI OAC5
    ◇ High voltage tapping range: ±5% or ±2×2 .5%
    ◇ Connection group: Dynl1orYyn0
    ◇ Rated low pressure: 0 .4kV
    ◇ Frequency: 50Hz

    10kV class SC(B)10Series resin insulated dry-type transformer technical parameters

    Rated capacity Voltage combination (kV) Connection method loss(kW) No-load current(%) Impedance voltage(%) Insulation class weight(kg)
    high pressure Low pressure no-load Load (120°C)
    10 11 10.5 10 6.3 6 0.4 Dyn11 or Yyno 0.135 0.305 4.0 4 F/F 135
    20 0.170 0.595 3.5 180
    30 0.190 0.705 2.6 330
    50 0.270 0.995 2.2 380
    63 0.330 1.210 2.2 440
    80 0.370 1.380 2.2 510
    100 0.400 1.570 2.0 590
    125 0.470 1.850 1.8 650
    160 0.540 2.130 1.8 780
    200 0.620 2.530 1.6 930
    250 0.720 2.760 1.6 1040
    315 0.880 3.470 1.4 1180
    400 0.980 3.990 1.4 1450
    500 1.160 4.880 1.4 1630
    630 1.340 5.870 1.2 6 1900
    630 1.300 5.960 1.2 1900
    800 1.520 6.955 1.2 2290
    1000 1.770 8.130 1.1 2700
    1250 2.090 9.690 1.1 3130
    1600 2.450 11.73 1.1 3740
    2000 3.050 14.45 1.0 4150
    2500 3.600 17.17 1.0 4810
    3150 5.140 22.50 0.8 8 5800
    4000 5.960 27.00 0.8 7100

    Overall dimensions and installation dimensions

    product-description4
    Rated capacity (KVA) Overall dimensions(m) Dimensions with protective housing(mm)
    L W H D A1 A2 A3 L W H D E F G H
    10 600 510 520 400 400 400 450 900 900 1200 400 850 840 250 150
    20 600 400 520 400 400 400 450 900 900 1200 400 850 840 250 150
    30 670 500 720 350 350 350 450 1050 800 1000 350 600 720 210 210
    50 690 500 770 350 350 350 450 1050 900 1050 350 650 770 220 220
    63 690 500 810 350 350 350 450 1050 900 1100 350 690 810 220 220
    80 720 500 840 400 400 400 450 1100 900 1150 400 720 840 230 230
    100 750 500 860 450 450 450 550 1150 1000 1150 450 740 860 240 240
    125 950 600 910 550 550 550 550 1350 1050 1200 550 870 910 300 210
    160 1020 600 960 550 550 550 550 1400 1050 1250 550 920 960 310 220
    200 1070 600 1060 550 550 550 550 1450 1100 1350 550 1020 1060 315 225
    250 1100 710 1120 660 660 660 660 1500 1150 1400 660 1090 1120 320 230
    315 1120 710 1140 660 660 660 660 1500 1200 1450 660 1100 1140 325 235
    400 1210 870 1240 660 660 660 660 1600 1250 1600 660 1130 1240 360 320
    500 1240 870 1310 820 820 820 820 1600 1300 1650 820 1180 1310 370 330
    630 1400 870 1400 820 820 820 820 1800 1300 1700 820 1280 1390 360 320
    630 1460 870 1340 820 820 820 820 1850 1300 1850 820 1230 1340 350 310
    800 1550 870 1460 820 820 820 820 1900 1300 1800 820 1340 1460 360 320
    1000 1600 870 1620 820 820 820 820 1950 1300 1950 820 1430 1620 370 325
    1250 1680 1120 1700 1070 1070 1070 1070 2050 1350 2000 1070 1490 1700 385 340
    1600 1750 1120 1790 1070 1070 1070 1070 2100 1400 2100 1070 1570 1790 410 370
    2000 1770 1120 1810 1070 1070 1070 1070 2150 1500 2100 1070 1520 1810 430 405
    2500 1840 1120 1930 1070 1070 1070 1070 2200 1500 2200 1070 1640 1930 440 420
    3150 1950 1120 1900 1070 1070 1070 1070 2350 1600 2250 1070 1600 1900 455 435
    4000 2030 1120 2000 1070 1070 1070 1070 2400 1600 2300 1070 1700 2000 470 450

    Model meaning

    product-description5

    Product Standards

    ◇ Implementation standards: GB/T10228-2008, GB6450-1986, JB/T10088-2004, GB4208-1993
    ◇ Rated high voltage: 10 (11, 10.5, 6.6, 6.3, 6)kV
    ◇ Rated low pressure: 0.4kV
    ◇ On-load voltage regulation range: (±4×2.5%) or (±3×2.5%)

    10kV class SC(B)10 Series on-load tap-changing resin insulated dry-type transformer technical parameters

    Rated capacity Voltage combination (kV) Connection method loss(kW) No-load current(%) Impedance voltage(%) Insulation class weight(kg)
    high pressure Low pressure No load Load (120°C)
    200 11 10.5 10 6.3 6 0.4 Dyn11 or Yyno 0.690 2.660 1.6 4 F/F 1180
    250 0.790 2.900 1.6 1290
    315 0.970 3.610 1.4 1430
    400 1.080 4.240 1.4 1700
    500 1.280 5.150 1.4 1880
    630 1.475 6.270 1.2 6 2150
    800 1.670 7.400 1.2 2540
    1000 1.950 8.760 1.1 2950
    1250 2.300 10.54 1.1 3380
    1600 2.700 12.41 1.1 3990
    2000 3.680 15.22 1.0 4400
    2500 4.400 18.10 1.0 5060
    3150 5.650 23.63 0.8 8 6050
    4000 6.560 28.35 0.8 7350

    Overall dimensions and installation dimensions

    product-description6
    Rated capacity (KVA) Dimensions with protective housing(mm)
    L W H D E F H G
    200 1450 1850 1600 550 1020 1060 225 315
    250 1500 1900 1600 660 1090 1120 230 320
    315 1500 1950 1600 660 1100 1140 235 325
    400 1600 2000 1600 660 1130 1240 320 360
    500 1600 2050 1600 820 1180 1310 330 370
    630 1800 2050 1600 820 1280 1390 320 360
    800 1900 2050 1600 820 1340 1460 320 360
    1000 1950 2050 1950 820 1430 1620 325 370
    1250 2050 2100 2000 1070 1490 1700 340 385
    1600 2100 2150 2100 1070 1570 1790 370 410
    2000 2150 2250 2100 1070 1520 1810 405 430
    2500 2200 2250 2200 1070 1640 1930 420 440
    3150 2350 2350 2250 1070 1600 1900 435 455
    4000 2400 2350 2300 1070 1700 2000 450 470

    Model meaning

    product-description7

    Product Standards

    ◇ Implementation standards: GB/T10228-1997, GB6450-1986, JB/T10088-2004, GB4208-1993
    ◇ Rated high voltage: 10 (11, 10.5, 6.6, 6.3, 6)kV
    ◇ High voltage boundary range: =5% or ±2×2.5%
    ◇ Rated low pressure: 0.4kV
    ◇ Insulation level: LI75AC35/LI0AC5
    ◇ Connection group: Dyn11orYyn0
    ◇ Frequency: 50Hz

    10kV class SC(B)11Series resin insulated dry-type transformer technical parameters

    Rated capacity Voltage combination (kV) Connection method loss(kW) No-load current(%) Impedance voltage(%) Insulation class weight(kg)
    high pressure Low pressure no-load Load (120°C)
    30 11 10.5 10 6.3 6 0.4 Dyn11 or Yyno 0.170 0.71 2.6 4 F/F 330
    50 0.240 1.00 2.2 380
    63 0.330 1.21 2.2 440
    80 0.330 1.38 2.2 510
    100 0.360 1.57 2.0 590
    125 0.420 1.85 1.8 650
    160 0.480 2.13 1.8 780
    200 0.550 2.53 1.6 930
    250 0.640 2.76 1.6 1040
    315 0.790 3.47 1.4 1180
    400 0.880 3.99 1.4 1450
    500 1.040 4.88 1.4 1630
    630 1.200 5.88 1.2 1900
    630 1.170 5.96 1.2 6 1900
    800 1.360 6.96 1.2 2290
    1000 1.590 8.13 1.1 2700
    1250 1.880 9.69 1.1 3130
    1600 2.200 11.73 1.1 8 3740
    2000 2.740 14.45 1.0 4150
    2500 3.240 17.17 1.0 4810
    3150 5.140 22.50 0.8 5800

    Overall dimensions and installation dimensions

    product-description8
    Rated capacity (KVA) Overall dimensions(m) Dimensions with protective housing(mm)
    L W H D A1 A2 A3 L W H D E F G H
    30 600 510 520 400 400 400 450 900 900 1200 400 850 840 250 150
    50 600 400 520 400 400 400 450 900 900 1200 400 850 840 250 150
    63 670 500 720 350 350 350 450 1050 800 1000 350 600 720 210 210
    80 690 500 770 350 350 350 450 1050 900 1050 350 650 770 220 220
    100 690 500 810 350 350 350 450 1050 900 1100 350 690 810 220 220
    125 720 500 840 400 400 400 450 1100 900 1150 400 720 840 230 230
    160 750 500 860 450 450 450 550 1150 1000 1150 450 740 860 240 240
    200 950 600 910 550 550 550 550 1350 1050 1200 550 870 910 300 210
    250 1020 600 960 550 550 550 550 1400 1050 1250 550 920 960 310 220
    315 1070 600 1060 550 550 550 550 1450 1100 1350 550 1020 1060 315 225
    400 1100 710 1120 660 660 660 660 1500 1150 1400 660 1090 1120 320 230
    500 1120 710 1140 660 660 660 660 1500 1200 1450 660 1100 1140 325 235
    630 1210 870 1240 660 660 660 660 1600 1250 1600 660 1130 1240 360 320
    630 1240 870 1310 820 820 820 820 1600 1300 1650 820 1180 1310 370 330
    800 1400 870 1400 820 820 820 820 1800 1300 1700 820 1280 1390 360 320
    1000 1460 870 1340 820 820 820 820 1850 1300 1850 820 1230 1340 350 310
    1250 1550 870 1460 820 820 820 820 1900 1300 1800 820 1340 1460 360 320
    1600 1600 870 1620 820 820 820 820 1950 1300 1950 820 1430 1620 370 325
    2000 1680 1120 1700 1070 1070 1070 1070 2050 1350 2000 1070 1490 1700 385 340
    2500 1750 1120 1790 1070 1070 1070 1070 2100 1400 2100 1070 1570 1790 410 370
    3150 1770 1120 1810 1070 1070 1070 1070 2150 1500 2100 1070 1520 1810 430 405
    Note: Due to the continuous updating of products, the dimensions and weight of the products in the table may change. Please refer to the dimensions provided when ordering.

    Model meaning

    product-description9

    10kVclassSC(B)11Series resin insulated dry-type transformer technical parameters

    Rated capacity Voltage combination (kV) Connection method loss(kW) No-load current(%) Impedance voltage(%) Insulation class weight(kg)
    high pressure Low pressure No load Load (120°C)
    200 11 10.5 10 6.3 6 0.4 Dyn11 or Yyno 0.690 2.660 1.6 4 F/F 1180
    250 0.790 2.990 1.6 1290
    315 0.970 3.610 1.4 1430
    400 1.080 4.240 1.4 1700
    500 1.280 5.150 1.4 1880
    630 1.475 6.270 1.2 6 2150
    800 1.670 7.400 1.2 2540
    1000 1.950 8.760 1.1 2950
    1250 2.300 10.54 1.1 3380
    1600 2.700 12.41 1.1 3990
    2000 3.680 15.22 1.0 4400
    2500 4.400 18.10 1.0 5060
    3150 5.650 23.63 0.8 8 6050
    4000 6.560 28.35 0.8 7350
    Note: Due to the continuous updating of products, the dimensions and weight of the products in the table may change. Please refer to the dimensions provided when ordering.

    Overall dimensions and installation dimensions

    product-description10
    Rated capacity Dimensions with protective housing(mm)
    L W H D E F G
    200 1450 1850 1600 550 1020 1060 315
    250 1500 1900 1600 660 1090 1120 320
    315 1500 1950 1600 660 1100 1140 325
    400 1600 2000 1600 660 1130 1240 360
    500 1600 2050 1600 820 1180 1310 370
    630 1800 2050 1600 820 1280 1390 360
    800 1900 2050 1600 820 1340 1460 360
    1000 1950 2050 1950 820 1430 1620 370
    1250 2050 2100 2000 1070 1490 1700 385
    1600 2100 2150 2100 1070 1570 1790 410
    2000 2150 2250 2100 1070 1520 1810 430
    2500 2200 2250 2200 1070 1640 1930 440
    3150 2350 2350 2250 1070 1600 1900 455
    4000 2400 2350 2300 1070 1700 2000 470
    Frequently Asked Questions (FAQ)
    What implementation standards do these dry-type transformers comply with?
    They comply with major international and national standards, including GB/T10228, GB6450, JB/T10088, and GB4208, ensuring high safety, quality, and performance.
    What are the primary structural features of the transformer core?
    The core is made from high-quality cold-rolled silicon steel sheets with a full oblique joint structure. The surface is sealed with epoxy resin paint to minimize no-load loss, no-load current, and operating noise.
    How does the low-voltage winding optimize heat dissipation?
    The low-voltage winding utilizes a foil structure to balance ampere-turns and incorporates an axial cooling air duct to improve heat dissipation. It is integrally cured and formed using DMD epoxy resin pre-impregnated cloth.
    What type of housing protection and outlet methods are available?
    Protective enclosures are available in IP20, IP23, and other ratings, made from cold-rolled steel or stainless steel. Outlets can be configured as standard busbars, side outlets, top outlets, or customized configurations.
    What are the main advantages of using a resin insulated dry-type transformer?
    Key advantages include low loss, low noise, low partial discharge, high moisture resistance, high reliability, flame-retardant properties, and a maintenance-free design.
    How is the temperature controlled during transformer operation?
    The system uses a cross-flow top-blowing cooling fan and an intelligent temperature controller, which enhances overload capacity, safety, and operational reliability.

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