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Dry-type amorphous alloy transformer

Transformers

Dry-type amorphous alloy transformer

Dry-type amorphous alloy transformers adopt amorphous alloy for iron cores and use air for heat dissipation and insulation, with windings usually cast and solidified by epoxy resin. Featuring low no-load loss, excellent energy-saving performance, no risk of oil leakage and fire, as well as easy maintenance, they are widely applied to indoor power distribution scenarios such as buildings and industrial plants.

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Product Overview

Dry-type amorphous alloy transformers adopt amorphous alloy for iron cores and use air for heat dissipation and insulation, with windings usually cast and solidified by epoxy resin. Featuring low no-load loss, excellent energy-saving performance, no risk of oil leakage and fire, as well as easy maintenance, they are widely applied to indoor power distribution scenarios such as buildings and industrial plants.

Model and Meaning

Service Conditions

  • Maximum ambient temperature: +40℃
  • Minimum ambient temperature: −5℃
  • Average temperature of the hottest month: +30℃
  • Average temperature of the hottest year: +20℃
  • Altitude not exceeding 1000m
  • Threephase supply voltages shall be approximately symmetrica
  • Waveform of supply voltage approximates sine wave
  • No obvious contaminants in installation environment
  • Indoor application only

Technical Parameters

6~10kV Class SCBH15 Series Dry-type Off-Circuit Tap-Chnanging Amorphous Alloy Distribution Transformers

Rated Capacity (kVA) Voltage Combinationed Tap Range Vector Group Symbol No-load Loss (W) Load Loss(W) No-load Current % Impedance Voltage %
HV(kV) HV Tap Range % LV(kV) 130℃(B)100℃ 155℃(F)120℃ 180℃(H)145℃
30 6
6.3
6.6
10
10.5
11		 ±5
±2×2.5		 0.4 Dyn11 70 670 710 760 1.6 4.0
50 90 940 1000 1070 1.4
80 120 1290 1380 1480 1.3
100 130 1480 1570 1690 1.2
125 150 1740 1850 1980 1.1
160 170 2000 2130 2280 1.1
200 200 2370 2530 2710 1.0
250 230 2590 2760 2960 1.0
315 280 3270 3470 3730 0.9
400 310 3750 3990 4280 0.8
500 360 4590 4880 5230 0.8
630 420 5530 5880 6290 0.7
630 410 5610 5960 6400 0.7 6.0
800 480 6550 6960 7450 0.7
1000 550 7650 8130 8760 0.6
1250 650 9100 9690 10370 0.6
1600 760 11050 11730 12580 0.6
2000 1000 13600 14450 15560 0.5
2500 1200 16150 17170 18450 0.5
1600 760 12280 12960 13900 0.6 8.0
2000 1000 15020 15960 17110 0.5
2500 1200 17760 18890 20290 0.5

6~10kV Class SCBH15 Series Dry-type Off-Circuit Tap-Changing Amorphous Alloy Distribution Transformers

Rated Capacity (kVA) Voltage Combinationed Tap Range Vector Group Symbol No-load Loss (W) Load Loss(W) No-load Current % Impedance Voltage %
HV(kV) HV Tap Range % LV(kV) 130℃(B)100℃ 155℃(F)120℃ 180℃(H)145℃
30 6
6.3
6.6
10
10.5
11		 ±5
±2×2.5		 0.4 Dyn11 70 670 710 760 1.6 4.0
50 90 940 1000 1070 1.4
80 120 1290 1380 1480 1.3
100 130 1480 1570 1690 1.2
125 150 1740 1850 1980 1.1
160 170 2000 Q0 2280 1.1
200 200 2370 2530 2710 1.0
250 230 2590 2760 2960 1.0
315 280 3270 3470 3730 0.9
400 310 3750 3990 4280 0.8
500 360 4590 4880 5230 0.8
630 420 5530 5880 6290 0.7
630 410 5610 5960 6400 0.7 6.0
800 480 6550 6960 7450 0.7
1000 550 7650 8130 8760 0.6
1250 650 9100 9690 10370 0.6
1600 760 11050 11730 12580 0.6
2000 1000 13600 14450 15560 0.5
2500 1200 16150 17170 18450 0.5
1600 760 12280 12960 13900 0.6 8.0
2000 1000 15020 15960 17110 0.5
2500 1200 17760 18890 20290 0.5

Notes: ① The load losses listed in the table are values obtained at the reference temperatures specified in parameters for different insulation systems (in accordance with GB/T 1094.1-11).

② If other vector group symbols are adopted, specific requirements shall be determined through negotiation between the manufacturer and the user.