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The S13-M.RL series utilizes an innovative 3D triangular wound core design. Constructed from high magnetic grain-oriented silicon steel with a jointless structure and vacuum annealed processing, it significantly enhances energy efficiency. It drastically lowers no-load loss, current, and operating noise compared to traditional laminated core models.
Core Parameters:
• Rated Voltage: 10kV±5% / 0.4kV
• Capacity Range: 30kVA - 2500kVA
• Vector Group: Dyn11 (Standard)
The three phase wound core transformer adopts continuous wound iron core structure with seamless winding technology, which effectively reduces air gaps and lowers no-load loss compared with traditional laminated core transformers. This compact design cuts vibration and operational noise greatly, delivering stable and efficient power conversion performance.
Manufactured with high-quality silicon steel sheets, the three phase wound core transformer features small overall size, lightweight body and reliable heat dissipation. It is widely applied in urban power grids, commercial buildings and industrial power distribution systems. The product operates steadily under varied load conditions, brings down long-term energy consumption, and meets strict energy-saving standards. With simple maintenance and strong adaptability to working environments, it becomes an ideal energy-efficient power transformation equipment for modern power supply projects.
Product Features
No-load loss is reduced by 25% to 35% compared to conventional S11 laminated core transformers.
The jointless 3D core structure decreases magnetostriction, cutting operating noise by 5 to 10 dB.
The triangular wound core ensures a fully symmetrical three-phase magnetic circuit and strong short-circuit capability.
Class A insulation with a fully sealed ONAN structure ensures long-term reliability and minimal maintenance.
S13-M.RL Parameters (10kV/0.4kV, 30-2500kVA)
Capacity (kVA) | HV Current (A) | LV Current (A) | No-Load Loss (W) | Load Loss (W) | No-Load Current (%) | Impedance (%) |
| 30 | 1.73 | 43.3 | 80 | 630 | 0.6 | 4.0 |
| 50 | 2.89 | 72.2 | 100 | 910 | 0.5 | 4.0 |
| 63 | 3.64 | 90.9 | 110 | 1090 | 0.5 | 4.0 |
| 80 | 4.62 | 115.5 | 130 | 1310 | 0.5 | 4.2 |
| 100 | 5.77 | 144.3 | 150 | 1580 | 0.5 | 4.2 |
| 125 | 7.22 | 180.4 | 170 | 1890 | 0.45 | 4.5 |
| 160 | 9.24 | 230.9 | 200 | 2310 | 0.4 | 4.5 |
| 200 | 11.55 | 288.7 | 240 | 2730 | 0.38 | 4.8 |
| 250 | 14.43 | 360.8 | 290 | 3200 | 0.35 | 4.8 |
| 315 | 18.19 | 454.7 | 340 | 3830 | 0.32 | 5.0 |
| 400 | 23.09 | 577.4 | 410 | 4520 | 0.3 | 5.0 |
| 500 | 28.87 | 721.7 | 480 | 5410 | 0.28 | 5.2 |
| 630 | 36.37 | 909.3 | 570 | 6740 | 0.25 | 5.2 |
| 800 | 46.19 | 1154.7 | 700 | 7500 | 0.23 | 5.5 |
| 1000 | 57.74 | 1443.4 | 830 | 10300 | 0.21 | 5.5 |
| 1250 | 72.17 | 1804.2 | 970 | 12000 | 0.2 | 6.0 |
| 1600 | 92.38 | 2309.4 | 1170 | 14500 | 0.18 | 6.0 |
| 2000 | 115.47 | 2886.8 | 1420 | 17800 | 0.16 | 6.0 |
| 2500 | 144.34 | 3608.4 | 1680 | 21500 | 0.15 | 6.0 |
FAQ
A three phase wound core transformer is a power transformer with wound core construction, offering high efficiency and low losses for three phase power distribution systems.
A three phase wound core transformer provides superior magnetic performance, better cooling, and compact size compared to conventional three phase transformer designs.
Three phase wound core transformers are widely used in industrial power systems, renewable energy, and utility grids where a reliable three phase transformer is required.
A three phase wound core transformer can be customized for various voltage levels, making it a versatile three phase transformer for medium and high voltage applications.
A three phase wound core transformer typically achieves efficiency above 99%, making it one of the most efficient three phase transformer options available on the market.
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jocelyn.duan@czguanghui.cn
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