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Power Transformer Series

SCB10 Cast Resin Transformer

The Cast Resin Transformer is a power transformer of which winding is enveloped with solid insulation. The epoxy resin is taken as the insulation material for the Epoxy Resin Dry-type Transformer. The high- and low-voltage windings are wound with the copper strip (foil), and epoxy resin is cast in vacuum for curing, constituting the high-strength fiber reinforced plastics structure. The insulation class includes Class F and Class H. The Epoxy Resin Dry-type Transformer has the features of good electrical performance, strong resistance to lightning shock, strong anti-short circuit ability, small volume, light weight, etc. The temperature display controller can be installed, and the operating temperature of the transformer winding is displayed and controlled, so as to guarantee normal service life of the transformer.

  • Model Description:

    Technical Parameters:

    1. Rated Capacity: 100-2500kVA

    2. Rated Voltage: Primary Voltage of 10kV and 6KV

                                Secondary Voltage 0.4kV and others

    3. Rated Frequency: 50Hz

    4. Number of Phases: 3 phases

    5. Cooling Mode: AN/AF

    6. Temperature Resistance Level of the Insulation Materials: Level F

    7. For Technical Performance Data and Insulation Level, see Table 1 and 2

     

    Table 1 Performance Parameters of the Dry-type Transformer with Primary Rated Voltage of 6kV, 10kV

    Rated 

    Capacity

    (kVA)

    Voltage Combination

    Connection 

    Unit 

    Symbol

    Loss

    Impedance 

    Voltage (%)

    No-load 

    Current (%)

    Primary 

    Voltage kV

    Primary Voltage 

    Tapping Range %

    Secondary 

    Voltage kV

    No Load

     W

    Load W

    100

    6              
    10

    ±2×2.5                 
    ±5

    0.4

    Dyn11  Yyn0

    400

    1570

    4

    1.8

    125

    470

    1850

    1.6

    160

    540

    2130

    200

    620

    2530

    1.4

    250

    720

    2760

    315

    880

    3470

    1.2

    400

    980

    3990

    500

    1160

    4880

    630

    1300

    5960

    6

    1

    800

    1520

    6960

    1000

    1770

    8130

    1250

    2090

    9690

    1600

    2450

    11700

    2000

    3050

    14400

    0.8

    2500

    3600

    17100

     

    Table 2 Insulation Level

    Rated Voltage (kV)

    Rated Short-term Power Frequency Withstand Voltage (kV)

    ≤1

    3

    3

    10

    6

    20

    10

    35

    15

    38

    20

    50

    35

    70

  • 1. Oil-free, pollution-free, flame retardant and fireproof.

    2. Low loss, high efficiency and low noise.

    3. Small partial discharge capacity (generally below 10PC), high reliability. It can guarantee long-term safe operation, and the life span can be up to 30 years.

    4. It can resist cracking and temperature changing, and has high mechanical strength and strong resistance capability to short circuit.

    5. The moisture-proof performance is good, it can be in normal operation at the humidity of 100%, and it can be put into operation without drying after stoppage.

    6. An independent transformer chamber is not required, it is not required to lift the core for maintenance, and the load bearing beam is not required as well, which saves floor area for civil engineering; It is oil free, which will neither generate toxic gas nor pollute the environment. The oil sump and other auxiliary buildings are not required, so the construction cost is reduced.

    7. Installation is convenient and commissioning free, and maintenance is almost not required; it is not required to replace and check oil seal, so the operation and maintenance cost is low.

  • Capacity

    L × W × H (mm)

    Total Weight (kg)

    100

    1080×740×950

    520

    200

    1090×760×1160

    930

    315

    1200×850×1180

    1250

    400

    1410×900×1373

    1460

    500

    1280×830×1470

    1740

    630

    1550×850×1270

    1780

    800

    1320×920×1350

    2020

    1000

    1500×960×1395

    2380

    1250

    1600×1000×1560

    3310

    1600

    1600×1210×1700

    3230

    2000

    1670×1150×1680

    4250

    2500

    1670×1210×1820

    4670

  • It is safe, flame-resisting, fireproof and free of pollution, and can be directly installed at the load center. It is maintenance-free, installation is simple and convenient, and the comprehensive operating cost is low. The moisture-proof performance is good, it can be in normal operation at the humidity of 100%, and it can be put into operation without pre-drying after stoppage. The loss is low, the partial discharge is low, the noise is small, the heat-sinking capability is strong, and it can operate at 150% rated load at the forced air cooling conditions.

    It is equipped with a perfect temperature protection control system, which provides reliable guarantee for safe operation and high reliability. According to the research on the products that have been put into operation, the product reliability indicators have reached the international advanced level.

  • 1. The elevation shall not exceed 1,000m

    2. Ambient Temperature      Maximum temperature                               +40℃/104°F

                                                Maximum daily average temperature        +30℃/86°F 

                                                Maximum annual average temperature     +20℃/68°F

                                                Minimum temperature                                -30℃/-22°F (applicable for the outdoor transformer)

                                                Minimum temperature                                 -5℃/23°F (applicable for the indoor transformer)

    3. The waveform of the supply voltage is similar to sine wave

    4. The supply voltage connected with the multi-phase transformer shall be approximately symmetrical


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