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SGB11-R H Class No-encapsulated-coil Dry-type Power Transformer

The H-class non-encapsulated dry-type transformer achieves a breakthrough in magnetic circuit structure through a composite cross-section design. Its no-load current is reduced by 40%-80% compared with the national standard, making it the preferred solution for explosion-proof places such as high-rise buildings and nuclear power plants.

    Model

    S------------------------------three phase

    G ------------------------------dry type (air insulation) transformer

    B ------------------------------ LV copper foil

    □------------------------------ technology performance code

    R------------------------------wound core

    □------------------------------ rated capacity(KVA)

    □------------------------------ voltage class(KV)

     

    Product Overview‌

    1.Revolutionary structural design

    Adopting composite cross-section winding technology jointly developed by China and Germany

    Innovative magnetic circuit structure enables three-phase no-load current balance to reach ±2%

    The overall protection layout is certified according to IEC 60076-11

     

    2.Excellent energy efficiency

    No-load loss is reduced by 80% compared with GB/T 10228 (actual value)

    Load loss decreased by 40% (compared to the 2025 energy efficiency standard)

    Noise level controlled below 55dB(A)

     

    3.Compact Engineering Solutions

    Volume reduced by 30% (at the same capacity)

    25% weight reduction (using nanocrystalline alloy)

    Supports vertical/horizontal multi-directional installation

     

    4.Special environment adaptation

    KEMA certified fire and explosion protection system

    Moisture-proof version for underground projects (suitable for 100% humidity)

    Class 1E, Class K3 certified product line for nuclear power plants

     

    5.Full-scenario application coverage

    Urban space: super high-rise buildings/subway and light rail

    Industrial field: oil platform/chemical park

    Special scenario: nuclear submarine power supply and distribution system

     

    Technical parameter

    Specification & capacity (KVA)

    No-load loss(W)

    Load loss(145℃)

    No-load current(%)

    Noise(LPA)db

    Impedance voltage (%)

    External dimension(L*W*H)

    GB

    ES

    GB

    ES

    GB

    ES

    GB

    ES

    50

    360

    230

    1490

    1040

    2.8

    0.2

    55

    45

    4

    1120*700*1050

    80

    460

    300

    2150

    1500

    2.6

    0.2

    55

    45

    4

    1120*700*1050

    100

    510

    330

    2550

    1530

    2.4

    0.4

    55

    45

    4

    1120*700*1050

    125

    600

    390

    3050

    1830

    2.2

    0.4

    56

    45

    4

    1130*700*1135

    160

    700

    450

    3650

    2190

    2.2

    0.4

    58

    45

    4

    1150*700*1145

    200

    820

    500

    4680

    2808

    21

    0.3

    58

    46

    4

    1170*800*1160

    250

    950

    600

    5500

    3300

    2

    0.3

    58

    46

    4

    1195*800*1220

    315

    1100

    700

    6600

    3960

    1.8

    0.3

    60

    46

    4

    1220*800*1260

    400

    1300

    780

    7800

    4680

    1.8

    0.3

    60

    46

    4

    1260*900*1350

    500

    1500

    920

    9350

    5610

    1.8

    0.3

    62

    46

    4

    1295*900*1455

    630

    1750

    1010

    10900

    6540

    1.6

    0.3

    62

    48

    4

    1451*1000*1340

    630

    1680

    1050

    11500

    6900

    1.6

    0.3

    62

    48

    6

    1415*1000*1340

    800

    2120

    1270

    13600

    8160

    1.6

    0.2

    64

    48

    6

    1475*1000*1355

    1000

    2480

    1485

    15700

    9420

    1.4

    0.2

    64

    49

    6

    1525*1000*1490

    1250

    2980

    1785

    18400

    11040

    1.4

    0.2

    65

    49

    6

    1580*1100*1510

    1600

    3420

    2050

    21300

    12780

    1.4

    0.2

    66

    49

    6

    1660*1250*1570

    2000

    4150

    2490

    25000

    15000

    1.2

    0.2

    66

    50

    6

    1730*1250*1715

    2500

    5000

    3000

    29100

    17460

    1.2

    0.2

    67

    50

    6

    1825*1250*1760