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SZ18 On-Load Tap-Changing Energy-Saving Power Transformer
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1. Product Introduction:
Our company produces the SZ18(20, 22) series 35kV class on-load tap-changing energy-saving power transformers. Their performance complies with GB20052-2020 "Energy Efficiency Limits and Energy Efficiency Grades for Power Transformers" and GB/T6451 "Technical Parameters and Requirements for Three-phase Oil-immersed Power Transformers" standards. The core uses high-quality cold-rolled silicon steel sheets, and the windings are made of high-quality oxygen-free copper. The appearance is beautiful, operation is safe, and they are widely used in urban and rural industrial and agricultural power grids.
2. Standards:
2.1 IEC60076-1 Power Transformers
2.2 GB/T1094.1 Power Transformers
2.3 GB/T6451 Technical Parameters and Requirements for Oil-immersed Power Transformers
2.4 JB/T10088 Sound Level of 6kV~500kV Power Transformers
2.5 GB20052-2020 Energy Efficiency Limits and Energy Efficiency Grades for Power Transformers
3. Model and Meaning:
4. Performance and Structural Features:
4.1 High reliability, advanced performance level, and reasonable economic indicators.
4.2 The core adopts a stepped three-level or five-level joint, with surface coated with cured paint to reduce loss and noise.
4.3 The winding structure is novel, the oil channel design is reasonable, and a new insulation structure is used to improve mechanical strength and short-circuit resistance.
4.4 The oil tank adopts a corrugated form, with diverse, beautiful, and elegant structures.
4.5 Equipped with remote monitoring function to grasp the equipment operating status in real time.
Technical Parameters of S13 Series 35kV Class On-load Tap Changer Energy-Saving Distribution Transformer
| Transformer Capacity (kVA) | High Voltage (kV) | High Voltage Tap Range (%) | Low Voltage (kV) | Rated Frequency (Hz) | Connection Group Number | No Load Loss (W) | Load Loss (W) | No Load Current (%) | Short Circuit Impedance (%) |
| 50 |
35 |
2×2.5 |
0.4 |
50 |
Dyn11 Yyn0 | 130 | 1200/1140 | 1.25 |
6.5 |
| 100 | 185 | 2010/1910 | 1.05 | ||||||
| 125 | 215 | 2370/2260 | 1.05 | ||||||
| 160 | 225 | 2820/2680 | 0.95 | ||||||
| 200 | 270 | 3320/3160 | 0.95 | ||||||
| 250 | 320 | 3950/3760 | 0.9 | ||||||
| 315 | 385 | 4750/4530 | 0.9 | ||||||
| 400 | 465 | 5740/5470 | 0.8 | ||||||
| 500 | 545 | 6910/6580 | 0.8 | ||||||
| 630 | 665 | 7860 | 0.62 | ||||||
| 800 | 785 | 9400 | 0.62 | ||||||
| 1000 | 920 | 11500 | 0.62 | ||||||
| 1250 | 1120 | 1390 | 0.57 | ||||||
| 1600 | 1350 | 16600 | 0.57 | ||||||
| 2000 | 1590 | 19700 | 0.52 | ||||||
| 2500 | 1890 | 23200 | 0.52 |
Technical Parameters of SZ18(20, 22) Series 35kV Class On-Load Tap Changer Energy-Saving Power Transformer
| Rated Capacity kVA | Voltage Combination and Tap Range | Rated Frequency (Hz) | Connection Group Number | No Load Loss (W) | Load Loss (W) | No Load Loss (W) | Load Loss (W) | No Load Loss (W) | Load Loss (W) | Short Circuit Impedance (%) | ||
| High Voltage (kV) | High Voltage Tap Range (%) | Low Voltage (kV) | ||||||||||
| SZ 18 | SZ 20 | SZ 22 | ||||||||||
| 3150 |
35～38.5 |
3×2.5 |
6.3 |
50 |
Yd11 | 2600 | 23500 | 2100 | 22200 | 1800 | 22200 | 7 |
| 4000 | 3100 | 27600 | 2500 | 26200 | 2100 | 26200 | ||||||
| 5000 | 3700 | 32500 | 3000 | 30800 | 2600 | 30800 | ||||||
| 6300 | 4500 | 34900 | 3700 | 33000 | 3100 | 33000 | 7.5 | |||||
| 8000 |
35～38.5 |
3×2.5 |
6.3 |
YNd11 | 6300 | 38600 | 5100 | 36500 | 4300 | 36500 | ||
| 10000 | 7400 | 45600 | 6000 | 43200 | 5100 | 43200 | ||||||
| 12500 | 8700 | 54000 | 7100 | 51100 | 6000 | 51100 | 8 | |||||
| 16000 | 10500 | 66800 | 8500 | 63300 | 7200 | 63300 | ||||||
| 20000 | 12400 | 78600 | 10100 | 74400 | 8500 | 74400 | ||||||
| 25000 | 14600 | 92900 | 11900 | 88000 | 10100 | 88000 | 10 | |||||
| 31500 | 17400 | 110200 | 14200 | 104400 | 12000 | 104400 | ||||||
Note: Due to continuous product improvements, the data provided in this sample is for reference only; please contact our company in time to obtain the latest dimensions.
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