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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. | ||
Laminated structure with high-grade grain-oriented silicon steel minimizes eddy current and hysteresis losses, achieving up to 98% efficiency—cuts energy consumption and operational costs long-term.
Advanced heat-dissipating design enables reliable work in -20°C to 60°C, avoiding overheating issues.
Flexible voltage (110V-33kV), capacity (5kVA-5MVA), and enclosure (IP23-IP65) options fit industrial, renewable energy, and commercial needs.
Compliant with IEC/ANSI standards, it has a 25+ year lifespan and <55dB noise, ensuring long-term stable, quiet operation.
Powers heavy machinery (e.g., manufacturing assembly lines, metal processing equipment), industrial control systems, and factory power distribution networks—handles fluctuating loads stably to ensure uninterrupted production.
Integrates with solar photovoltaic (PV) farms and wind power plants, converting unstable renewable energy into grid-compatible electricity for efficient power transmission to the public grid.
Supplies power to commercial buildings (shopping malls, office towers) and residential communities, supporting HVAC systems, lighting, and household/appliance electrical needs with low noise and high efficiency.
Used in medium/high-voltage power grids (e.g., regional substations), stepping up/down voltages to match long-distance transmission and end-user demand, ensuring safe and efficient power supply.
The standard models include S13 (complying with GB 20052-2024 Class 2 standards) and S15 (complying with Class 1 standards, which yield 15-20% lower losses than S13). They are also fully equivalent to the EU market's IEC 60076-11 IE2/IE3 standards.
Yes. They operate stably within an ambient temperature range of -25℃ to 40℃ (extendable to -40℃ with anti-freeze additives). They are rated for altitudes ≤1000m standard, with proportional derating capabilities at 1500m (5% derating) and 3000m (10% derating).
We support high customization, including special voltage ratings (110V to 33kV), capacities ranging from 5kVA up to 5MVA, protection enclosures from IP23 to IP65, as well as specialized high-altitude or explosion-proof design requirements.
By utilizing a high-grade grain-oriented silicon steel core (such as 30Q130) and an optimized laminated structural design, we drastically minimize core vibrations, keeping the operating noise below 55dB in compliance with IEC/ANSI standards.
Our standard models utilize Oil Natural Air Natural (ONAN) cooling, but we also offer customizable options. Typical protection classes are IP20 for indoor installations and IP23 for outdoor structures to shield against dust and rain.
Yes, all performance parameters—including no-load losses, load losses, and short-circuit impedance—are strictly verified by qualified third-party testing laboratories before shipment.
