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6-11 kV SC(B) Series Resin-Insulated Dry-Type Transformer

SC(B)12 / 14 / 18 resin-insulated dry-type transformers, a dry-type alternative to oil-immersed distribution transformers for high-rise buildings, hospitals, tunnels, subways and airports.

  • Rated capacity: 30–2,500 kVA
  • Rated voltage: 6–11 kV (HV side)

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Description

Overview

SC(B) series epoxy resin cast dry type transformers can be used as ideal replacements for oil-immersed distribution transformers. They deliver top performance among all dry type transformers. They are suitable for key application such as urban power grids, high-rise buildings, business centers, theaters, hospitals, hotels, tunnels, subways, stations, docks, airports, underground power stations, laboratories, and combined substations.

Technical Parameters

1) SC(B)14 resin insulated dry type power transformer

Rated Capacity (kVA) Voltage combination(kV) Connection-group code No-load current % No-load loss W Load Loss W Impedance%
H.V. High voltage tapping range % L.V. B(100℃) F(120℃) H(145℃)
30 6 6.3 6.6 10 10.5 11 ± 5 ± 2 ×2.5 0.4 Yyn0 Dyn11 2.4 130 605 640 685 4.0
50 2.4 185 845 900 965 4.0
80 1.8 250 1160 1240 1330 4.0
100 1.8 270 1330 1415 1520 4.0
125 1.6 320 1565 1665 1780 4.0
160 1.6 365 1800 1915 2050 4.0
200 1.4 420 2135 2275 2440 4.0
250 1.4 490 2330 2485 2665 4.0
315 1.2 600 2945 3125 3355 4.0
400 1.2 665 3375 3590 3850 4.0
500 1.2 790 4130 4390 4705 4.0
630 1.0 910 4975 5290 5660 4.0
630 1.0 885 5050 5365 5760 6.0
800 1.0 1035 5895 6265 6715 6.0
1000 1.0 1205 6885 7315 7885 6.0
1250 1.0 1420 8190 8720 9335 6.0
1600 1.0 1665 9945 10555 11320 6.0
2000 0.8 2075 12240 13005 14005 6.0
2500 0.8 2450 14535 15445 16605 6.0

2) SC (B) 18 resin insulated dry type power transformer

Rated Capacity (kVA) Voltage combination(kV) Connection-group code No-load current % No-load loss W Load Loss W Impedance%
H.V. High voltage tapping range % L.V. B(100℃) F(120℃) H(145℃)
30 6 6.3 6.6 10 10.5 11 ± 5 ± 2 x 2.5 0.4 YynO Dyn11 2.4 105 605 640 685 4.0
50 2.4 155 845 900 965 4.0
80 1.8 210 1160 1240 1330 4.0
100 1.8 230 1330 1415 1520 4.0
125 1.6 270 1565 1665 1780 4.0
160 1.6 310 1800 1915 2050 4.0
200 1.4 360 2135 2275 2440 4.0
250 1.4 415 2330 2485 2665 4.0
315 1.2 510 2945 3125 3355 4.0
400 1.2 570 3375 3590 3850 4.0
500 1 670 4130 4390 4705 4.0
630 1 775 4975 5290 5660 4.0
630 1 750 5050 5365 5760 6.0
800 1 875 5895 6265 6715 6.0
1000 1 1020 6885 7315 7885 6.0
1250 1 1205 8190 8720 9335 6.0
1600 1 1415 9945 10555 11320 6.0
2000 0.8 1760 12240 13005 14005 6.0
2500 0.8 2080 14535 15445 16605 6.0

3) SC (B) 12 resin insulated dry type power transformer

Rated Capacity (kVA) Voltage combination(kV) Connection-group code No-load current % No-load loss W Load Loss W Impedance%
H.V. High voltage tapping range % L.V. B(100℃) F(120℃) H(145℃)
30 6 6.3 6.6 10 10.5 11 ± 5 ± 2 x 2.5 0.4 YynO Dyn11 2.4 150 670 710 760 4.0
50 2.4 215 940 1000 1070 4.0
80 1.8 295 1290 1380 1480 4.0
100 1.8 320 1480 1570 1690 4.0
125 1.6 375 1740 1850 1980 4.0
160 1.6 430 2000 2130 2280 4.0
200 1.4 495 2370 2530 2710 4.0
250 1.4 575 2590 2760 2960 4.0
315 1.2 705 3270 3470 3730 4.0
400 1.2 785 3750 3990 4280 4.0
500 1 930 4590 4880 5230 4.0
630 1 1070 5530 5880 6290 4.0
630 1 1040 5610 5960 6400 6.0
800 1 1215 6550 6960 7460 6.0
1000 1 1415 7650 8130 8760 6.0
1250 1 1670 9100 9690 10370 6.0
1600 1 1960 11050 11730 12580 6.0
2000 0.8 2440 13600 14450 15560 6.0
2500 0.8 2880 16150 17170 18450 6.0

Features

  • High voltage winding with copper wire, low voltage winding with copper wire or copper foil, glass fiber felt filled wrapping, vacuum state with no filling epoxy resin pouring, solidified after the formation of a solid cylinder, high mechanical strength, small partial discharge, high reliability.
  • Flame retardant, explosion-proof, no pollution of the environment. The insulating material such as glass fiber of winding coil has self extinguishing characteristic, and will not generate arcs due to short circuit.
  • The coil does not absorb moisture, and the iron core clip has special protective layer against corrosion, which can run in 100% relative humidity and other harsh environments. Discontinuous operation does not need to remove the tide.
  • High level of resistance to short circuit and lightning.
  • Inside and outside of the coil, the resin layer is thin, and the heat dissipation
  • Performance is good. Air cooling (AN) is usually used for cooling. For any protection grade transformer, air cooling system (AF)can be configured to improve short time overload and ensure safe operation.
  • Low loss, good electricity saving effect. Running economy, can avoid maintenance.
  • Small volume, light weight, less space occupation, low installation cost, no need to consider oil drain tank, fire protection and fire fighting facilities and standby power supply.
  • Because of the lack of fire and explosion, it can be installed in the load center and close to the electric point, thus reducing the cost of the line and saving the expensive low voltage facilities.

Additional information

Product Family

Dry-Type

Rated Capacity

30–2, 500 kVA

Rated Voltage

6–11 kV (HV side)