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China Oil Immersed Distribution & Power Transformers Factory: Reliable Solutions from Top Suppliers
Characteristics
- The transformer core is made of amorphous alloy band, no-load loss is 60% lower than that of S9 transformer and 25% lower than the stipulated value of JB/T10318.
- The transformer adopts Ddyn11 to reduce the effect of harmonic wave to power grid and improve power supply quality.
- The transformer adopts vacuum casting tank core, which greatly improves the reliability and stability.
- The transformer adopts vacuum oiling method, which fully eliminates the bubbles, forming into oil tank.
- According to years of practical experiences, our products adopt advanced technology, so the winding insulation and lightning impulse test's full-wave peak voltage is 25% higher than that of national standard, thus to make sure that the transformer can run safely and reliably.
Core Specifications
Width of band: 142mm, 170mm, 213mm
Height of core aperture: 150-1000mm
Width of core aperture: 65-500mm
Thickness of folded core aperture: 20-180mm
Core height: Width of band+4mm (cooling thickness epoxy resin)
Width of band+2mm (cooling thickness of gunmetallic)
Thickness of folded core joint: Thickness of folded core x 1.18mm
Perimeter of outer max band is 3500mm.
Main Parameters
| Rated capacity (kVA) |
Voltage combination and tapping range (kV) | Vector group | No-load loss (W) |
Load loss (W) |
No-load current (%) |
Impedance voltage (%) |
|---|---|---|---|---|---|---|
| 30 | High voltage 6, 6.3, 10, 10.5, 11 High voltage tapping range ±5±2×2.5 Low voltage 0.4 |
Dyn11 | 33 | 600 | 1.70 | 4.0 |
| 50 | 43 | 870 | 1.30 | |||
| 63 | 50 | 1040 | 1.20 | |||
| 80 | 60 | 1250 | 1.10 | |||
| 100 | 75 | 1500 | 1.00 | |||
| 125 | 85 | 1800 | 0.90 | |||
| 160 | 100 | 2200 | 0.70 | |||
| 200 | 120 | 2600 | 0.70 | |||
| 250 | 140 | 3050 | 0.70 | |||
| 315 | 170 | 3650 | 0.50 | |||
| 400 | 200 | 4300 | 0.50 | |||
| 500 | 240 | 5160 | 0.50 | |||
| 630 | 320 | 6200 | 0.30 | |||
| 800 | 380 | 7500 | 0.30 | |||
| 1000 | 450 | 10300 | 0.30 | |||
| 1250 | 530 | 12000 | 0.20 | 4.5 | ||
| 1600 | 630 | 14500 | 0.20 | |||
| 2000 | 750 | 17400 | 0.20 | |||
| 2500 | 900 | 20200 | 0.20 | 5 |
Type SH16-M Technical Parameters
| Type | Rated capacity (kVA) |
Voltage combination (kV) | Vector group | No-load loss (W) |
Load loss (W) |
No-load current (%) |
Impedance voltage (%) |
Outline dimensions (mm) L H B |
Installation center distance (L1xL2) (mm) |
Weight of oil (kg) |
Total weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SH16-M-50/10 | 50 | High voltage 6, 6.3, 10, 10.5, 11 High voltage tapping range ±5±2×2.5 Low voltage 0.4 |
Dyn11 | 38 | 870 | 0.9 | 4.0 | 950 1040 620 | 400x650xΦ14 | 160 | 680 |
| SH16-M-100/10 | 100 | 58 | 1500 | 0.7 | 4.0 | 1060 1070 770 | 400x650xΦ14 | 190 | 890 | ||
| SH16-M-160/10 | 160 | 78 | 2200 | 0.5 | 4.0 | 1050 1150 930 | 400x650xΦ14 | 230 | 1190 | ||
| SH16-M-200/10 | 200 | 90 | 2600 | 0.5 | 4.0 | 1110 1170 930 | 550x650xΦ19 | 270 | 1300 | ||
| SH16-M-250/10 | 250 | 110 | 3050 | 0.5 | 4.0 | 1180 1180 1010 | 550x650xΦ19 | 300 | 1460 | ||
| SH16-M-315/10 | 315 | 130 | 3650 | 0.4 | 4.0 | 1180 1180 1010 | 550x650xΦ19 | 240 | 1400 | ||
| SH16-M-400/10 | 400 | 160 | 4300 | 0.4 | 4.0 | 1200 1180 1010 | 550x650xΦ19 | 280 | 1660 | ||
| SH16-M-500/10 | 500 | 190 | 5150 | 0.4 | 4.0 | 1270 1300 1160 | 660x700xΦ19 | 300 | 1950 | ||
| SH16-M-630/10 | 630 | 230 | 6200 | 0.3 | 4.5 | 1450 1330 1240 | 820x700xΦ19 | 480 | 2450 | ||
| SH16-M-800/10 | 800 | 280 | 7500 | 0.3 | 4.5 | 1520 1460 1380 | 820x700xΦ19 | 520 | 2900 | ||
| SH16-M-1000/10 | 1000 | 330 | 10300 | 0.3 | 4.5 | 1720 1510 1460 | 820x700xΦ19 | 680 | 3500 | ||
| SH16-M-1250/10 | 1250 | 390 | 12000 | 0.2 | 4.5 | 1760 1650 1330 | 820x700xΦ19 | 800 | 3980 | ||
| SH16-M-1600/10 | 1600 | 470 | 14500 | 0.2 | 4.5 | 1980 1710 1380 | 820x700xΦ19 | 850 | 5350 | ||
| SH16-M-2000/10 | 2000 | 570 | 17400 | 0.2 | 5.0 | 2085 1790 1545 | 820x700xΦ19 | 1010 | 6350 | ||
| SH16-M-2500/10 | 2500 | 680 | 20200 | 0.2 | 5.0 | 2400 2350 1500 | 820x700xΦ19 | 1050 | 8200 |
Voltage Class & Power Frequency Withstand Voltage
| Voltage class (kV) |
Highest voltage for equipment Effective value of Maximum phase voltage (kV) |
Rated short-time power frequency withstand voltage Effective value of Power-frequency withstand voltage (kV/min) |
Rated lightning impulse withstand voltage Full wave peak value of rated voltage Lightning impulse withstand voltage (kV) |
|---|---|---|---|
| 0.6 | ≤1.1 | 3 | — |
| 3 | 3.5 | 18 | 40 |
| 6 | 6.9 | 25 | 60 |
| 10 | 11.5 | 35 | 75 |
| 20 | 23 | 50 | 125 |
Frequently Asked Questions
Q1: What are the energy-saving benefits of using an amorphous alloy core in these transformers?
The amorphous alloy band core significantly reduces core losses. Specifically, the no-load loss is 60% lower than that of standard S9 transformers and 25% lower than the value specified by the JB/T10318 standard.
Q2: How does the Ddyn11 vector group configuration improve grid performance?
By adopting the Ddyn11 vector group, the transformer effectively minimizes the impact of harmonic waves on the power grid, resulting in a cleaner and higher quality power supply.
Q3: What is the benefit of the vacuum casting tank core and vacuum oiling process?
The vacuum casting tank core greatly enhances structural reliability and operation stability. Additionally, the vacuum oiling method completely eliminates air bubbles during the oil tank formation, preventing insulation degradation.
Q4: How do the winding insulation and impulse test parameters compare to national standards?
Thanks to advanced manufacturing technologies, the full-wave peak voltage during winding insulation and lightning impulse tests is 25% higher than the national standard requirement, ensuring safe and reliable operations under high electrical stress.
Q5: What core aperture heights and widths are available for customization?
The core aperture height ranges from 150mm to 1000mm, while the core aperture width ranges from 65mm to 500mm, allowing for flexible configurations based on specifications.
Q6: What is the rated lightning impulse withstand voltage for a 10kV voltage class transformer?
For the 10kV voltage class, the transformer is designed to withstand a rated lightning impulse full wave peak voltage of up to 75kV, with a power-frequency withstand voltage of 35kV/min.