SH15/SH21/SH25
Amorphous alloy core transformer SH15 / SH21 / SH25
The core is made of amorphous alloy instead of electrical steel. No-load losses of these transformers are roughly half those of S13 units of the same rating: at 1000 kVA, 450 W versus 830 W. This pays off where the transformer runs at light load most of the time: villages, rural networks, standby supply.
Main dataper the factory catalogue
- Series
- SH15/SH21/SH25
- Voltage
- 6; 6.3; 10; 10.5; 11 / 0.4 kV
- Vector group
- Dyn11 / Yyn0
- Impedance voltage
- 4,0–5,0 %
- Energy efficiency class
- SH15 — 3, SH21 — 2, SH25 — 1 (GB 20052-2024)
- Rating
- 30–2 500 kVA
- Versions
- 19
- Tests
- factory acceptance tests
Choose rating, kVA
Price on requestDepends on winding material and loss requirements. Quoted delivered to site.Request a price
Design
- Amorphous alloy core
- Sealed corrugated tank
- Versions SH15, SH21 and SH25 by energy efficiency class
- High voltage 6; 6.3; 10; 10.5 or 11 kV
Specifications
| Rating, kVA | No-load losses SH15, W | No-load losses SH21, W | No-load losses SH25, W | Load losses SH15, W | Load losses SH21, W | Load losses SH25, W | Uk, % | |
|---|---|---|---|---|---|---|---|---|
| 30 | 33 | 33 | 25 | 630 / 600 | 535 / 510 | 510 / 480 | 4,0 | request |
| 50 | 43 | 43 | 35 | 910 / 870 | 780 / 745 | 735 / 700 | 4,0 | request |
| 63 | 50 | 50 | 40 | 1 090 / 1 040 | 930 / 890 | 880 / 840 | 4,0 | request |
| 80 | 60 | 60 | 50 | 1 310 / 1 250 | 1 120 / 1 070 | 1 060 / 1 010 | 4,0 | request |
| 100 | 75 | 75 | 60 | 1 580 / 1 500 | 1 350 / 1 285 | 1 270 / 1 215 | 4,0 | request |
| 125 | 85 | 85 | 70 | 1 890 / 1 800 | 1 615 / 1 540 | 1 530 / 1 450 | 4,0 | request |
| 160 | 100 | 100 | 80 | 2 310 / 2 200 | 1 975 / 1 880 | 1 870 / 1 780 | 4,0 | request |
| 200 | 120 | 120 | 95 | 2 730 / 2 600 | 2 330 / 2 225 | 2 210 / 2 100 | 4,0 | request |
| 250 | 140 | 140 | 110 | 3 200 / 3 050 | 2 735 / 2 610 | 2 590 / 2 470 | 4,0 | request |
| 315 | 170 | 170 | 135 | 3 830 / 3 650 | 3 275 / 3 120 | 3 100 / 2 950 | 4,0 | request |
| 400 | 200 | 200 | 160 | 4 520 / 4 300 | 3 865 / 3 675 | 3 660 / 3 480 | 4,0 | request |
| 500 | 240 | 240 | 190 | 5 410 / 5 150 | 4 625 / 4 400 | 4 380 / 4 170 | 4,0 | request |
| 630 | 320 | 320 | 250 | 6 200 | 5 300 | 5 020 | 4,5 | request |
| 800 | 380 | 380 | 300 | 7 500 | 6 415 | 6 075 | 4,5 | request |
| 1 000 | 450 | 450 | 360 | 10 300 | 8 800 | 8 340 | 4,5 | request |
| 1 250 | 530 | 530 | 425 | 12 000 | 10 260 | 9 720 | 4,5 | request |
| 1 600 | 630 | 630 | 500 | 14 500 | 12 400 | 11 745 | 4,5 | request |
| 2 000 | 720 | 710 | 550 | 18 300 | 14 800 | 14 000 | 5,0 | request |
| 2 500 | 865 | 860 | 670 | 21 200 | 16 300 | 15 450 | 5,0 | request |
Data from the partner factory's catalogue. Where load losses are given as two figures, the first is for Dyn11, the second for Yyn0.
Comparison of 10 kV oil-immersed transformers, 1000 kVA example
No-load losses run around the clock while the transformer is energised, regardless of load. So over a year, a difference in them adds up to thousands of kilowatt-hours.
| Series | No-load losses, W | Load losses, W | Annual no-load losses, kWh |
|---|---|---|---|
| S13 | 830 | 10 300 | 7 271 |
| S20 | 745 | 8 240 | 6 526 |
| S22 | 665 | 7 415 | 5 825 |
| SH15 (amorphous) | 450 | 10 300 | 3 942 |
| SH21 (amorphous) | 450 | 8 800 | 3 942 |
| SH25 (amorphous) | 360 | 8 340 | 3 154 |
Data from the partner factory's catalogue. Annual no-load losses = no-load losses × 8760 h.