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| Basic Information | ||
| Item | Specification | |
| Product Model | Example: S13-M-100/10 (S=Three-Phase, 13=Efficiency Class, M=Hermetically Sealed, 100=Rated Capacity kVA, 10=HV Rated Voltage kV) | |
| Rated Capacity (Sn) | 50kVA~2500kVA (ONAN: 100% rated capacity; ODAF: 130% rated capacity) | |
| Phase | Three-Phase (Standard) / Single-Phase (Customizable) | |
| Rated Frequency (fn) | 50Hz / 60Hz (±1% tolerance) | |
| Connection Group | Dyn11 (Default) / Yyn0 (Optional, per IEC 60076-1) | |
| Environmental & Operating Conditions | ||
| Ambient Temperature | -25℃~40℃ (-40℃ optional with anti-freeze additive) | |
| Altitude | ≤1000m (5% derating at 1500m, 10% at 3000m) | |
| Humidity | ≤90% @25℃ (no condensation); ≤50% @40℃ | |
| Seismic Resistance | GB 50260-2013, 7-degree intensity (0.15g acceleration) | |
| Protection Class | IP20 (Indoor) / IP23 (Outdoor, dust/rain protection) | |
| Losses & Impedance (Efficiency Core) | ||
| Parameter | S13-100/10 Example | Test Conditions |
| No-Load Loss (Po) | ≤170W | Rated voltage, rated frequency |
| Load Loss (Pk) | ≤1050W | Rated current, 75℃ reference temp |
| Short-Circuit Impedance (Uk%) | 4%~6% | ±10% tolerance at 75℃ |
| No-Load Current (Io%) | ≤1.2% (≤0.8% for large capacity) | Rated voltage |
| Efficiency Compliance: GB 20052-2024 Class 2 (S13) / Class 1 (S15, 15-20% lower losses than S13) | IEC 60076-11 IE2/IE3 equivalent for EU markets | ||
| Example S13-250/10 Key Specs | ||
| Item | Value | |
| Rated Capacity | 250kVA | |
| HV/LV Voltage/Current | 10kV/14.43A; 0.4kV/360.8A | |
| No-Load/Load Loss | ≤320W / ≤2250W | |
| Short-Circuit Impedance | 4.5% | |
| Core Material | 30Q130 Silicon Steel | |
| Cooling Method | ONAN | |
| Protection Class | IP23 | |
| Customization available for special voltages, high-altitude, or explosion-proof requirements. All parameters verified by third-party labs. | ||
The S13 series features a three-phase hermetically sealed design with a rated capacity ranging from 50kVA to 2500kVA. It supports rated frequencies of 50Hz or 60Hz and typically operates using a Dyn11 or Yyn0 connection group compliant with IEC standards.
Yes. While the standard model is designed for altitudes ≤1000m and temperatures from -25℃ to 40℃, customizations are available for high-altitude derating, anti-freeze additives down to -40℃, explosion-proof environments, and higher IP rating enclosures (up to IP65).
The S13 transformer complies with GB 20052-2024 Class 2 efficiency standards. The S15 model complies with Class 1 standards, offering an additional 15% to 20% reduction in no-load and load losses compared to the S13, which equates to EU IE2/IE3 standards.
It features ONAN (Oil Natural Air Natural) cooling as standard for 100% capacity operation. Enclosure protection classes include IP20 for indoor installations and IP23 for outdoor structures to shield against dust and rain.
Due to its high-grade 30Q130 silicon steel core and advanced laminated configuration, the transformer ensures a service lifespan of 25+ years and operates quietly with noise levels kept below 55dB.
