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Three Phase Oil Immersed 3D Distribution Transformer

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3 Dimension (3D) Wound Cores” are made from three identical single-core frames of trapezoidal silicon steel tape, wound into a compact triangular structure that eliminates air gaps. This innovative design ensures uniform flux flow, reduces total core weight, lowers no-load loss by 20-25%, and decreases excitation current by 50%, significantly minimizing reactive loss and improving the transformer’s power factor (Cos-phi).

SKU: JK-TR3D-001-1 Category:
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Description

3 Dimension (3D) Wound Cores” are made from three identical single-core frames of trapezoidal silicon steel tape, wound into a compact triangular structure that eliminates air gaps. This innovative design ensures uniform flux flow, reduces total core weight, lowers no-load loss by 20-25%, and decreases excitation current by 50%, significantly minimizing reactive loss and improving the transformer’s power factor (Cos-phi).

Three Phase Oil Immersed Amorphous Alloy Core Distribution Transformer

CHARACTERISTIC TABLE
Capacity Approximated Dimension (mm) No Load Losses (P 0) Efficiency 100% Impedance at 750 C Transformer Oil Volume Transformer Total Weight Approx
KVA Length Width Height Watt % % Liters kgs
315 1285 1185 1300 800 98.53 4.0 280 1125
400 1330 1250 1325 960 98.63 4.0 335 1380
500 1440 1380 1390 1150 98.69 4.0 405 1685
630 1445 1385 1480 1350 98.77 4.0 455 1920
800 1655 1635 1510 1400 98.53 6.0 555 2285
1000 1740 1740 1610 1600 98.61 6.0 650 2680
1250 1745 1745 1760 1850 98.71 6.0 770 3135
1500 1845 1865 1660 2050 98.68 6.0 875 3740
1600 1865 1900 1685 2350 98.68 6.0 925 3935
2000 1880 1905 1860 2650 98.76 6.0 1110 4570
2500 2170 2130 1910 3000 98.87 7.0 1175 5415
3000 2780 2480 1990 3800 98.79 7.0 1380 6380

Note

  1. For spesification above 4000 kVA, Please refer to our large distribution transformer brochure
  2. The Above is our standard specifications. For special request, please contact our sales engineer
TRANSFORMER OUTLINE DRAWING

EQUIPMENT NAME
No Items Sparepart No Items Sparepart No Items Sparepart
1 HV Bushing with insulation CAP 8 Capacity Plate 15 Arching horn
2 OFF-LOAD Tap Changer 9 Trade Mark 16 Stick Type Oil Thermometer With Contact
3 Lifting eyes for Untanking/Tanking Assembly 10 Earth Terminal 17 Radiator Fin
4 LV Bhusing 11 Foundation
5 Pressure Relief Valve 12 Oil Drain Valve with Plug
6 Oil Level Gauge 13 Corrugates FIN
7 Name Plate 14 Thermometer Pocket

Additional information

Weight 1050 kg
Dimensions 120 × 770 × 1310 cm
Capacity (kVa)

200kVa, 250kVa, 315kVa, 400kVa, 500kVa, 630kVa, 800kVa, 1000kVa, 1250kVa, 1600kVa, 2000kVa, 2500kVa, 3000kVa, 3150kVa, 3500kVa, 4000kVa

1 review for Three Phase Oil Immersed 3D Distribution Transformer

  1. 5 out of 5

    Joe Doe –

    Awesome!

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Oil Immersed Distribution Transformer

GENERAL SPESIFICATIONS
Parameter Minimal Maximal
Rated Power (Capacity) 10 kVA 4000 kVA
Primary Voltage 6 kV 33 kV
Secondary Voltage 400 V 11 kV
Frequency 50 Hz 60 Hz
Cooling Type ONAN (Oil Natural Air Natural) ONAF (Oil Natural Air Forced)
Efficiency ≥ 97% ≥ 99%
Impulse Voltage (BIL) 75 kV 170 kV
Noise Level ≥ 55 dB ≥ 65 dB
Insulation Class A A
Ambient Temperature -10°C +45°C
Humidity Tolerance 90% 95%
Component
Core Material Silicon Steel Amorphous Alloy
Winding Material Aluminum Copper
Oil Type Mineral Oil Synthetic Ester Oil
Tap Changer Off-load (5 Steps) On-load (±10%)
Cooling System Natural Oil Cooling Oil Cooling with Forced Air

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