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SBHL-M-1000-13.8/0.231
YAWEI
>> Product Introduction
This 1000kVA three-phase distribution transformer is engineered with a primary voltage of 13.8kV and a secondary voltage of 231V, fully compliant with the IEC-60076 standard for design, manufacturing and testing. Designed for outdoor installation, it features a core-type structure with amorphous alloy core material and is filled with 25# mineral insulating oil (PCB FREE), paired with an ONAN cooling system. Adapted to outdoor working conditions at an altitude of 1000m and ambient temperature of 20℃, with a wide working temperature range of -25℃ to +40℃, it is an ideal choice for medium and low voltage power distribution in industrial, commercial and infrastructure scenarios, boasting ultra-low no-load loss, stable performance and long service life.
Product Advantage
1.Ultra-Energy-Saving Core
Adopts amorphous alloy core material, achieving an ultra-low no-load loss of only 400W, which greatly reduces standby power consumption and realizes efficient energy saving in long-term operation.
2.Outdoor Special Design
Suitable for outdoor environments below 1000m altitude, with a wide working temperature range of -25℃ to +40℃, strong environmental adaptability and stable operation under various outdoor working conditions.
3.Safe & Eco-Friendly Insulation
Filled with PCB-free 25# mineral insulating oil, no environmental pollution, with high-voltage side insulation class of 17.5kV and BIL of 95kV, excellent insulation performance and reliable electrical safety protection.
4.Stable Heat Dissipation
ONAN natural oil circulation and natural cooling system effectively controls the operating temperature, with top oil temperature rise of 60℃ and winding temperature rise of 65℃, avoiding overheating and extending the service life of components.
5.Precise Voltage Regulation
Equipped with an off-load tap changer on the high-voltage side with a tap range of ±5%, which can flexibly adjust the output voltage according to the grid voltage fluctuation to ensure the stability of the power supply voltage.
6.Durable & Reliable Structure
Mild steel tank with grey anti-corrosion coating, strong corrosion resistance and impact resistance, the integral structure is firm and durable, adapting to the complex outdoor operating environment for long-term use.
>> Technical Parameters
| Type | Three Phase Oil-immersed Distribution Transformer |
| Model | SBHL-M-1000-13.8/0.231 |
| Installation | Outdoor |
| Altitude | ≤1000m |
| Rated Power | 1000KVA or others |
| Cooling Method | ONAN |
| Primary Voltage | 13.8KV |
| Secondary Voltage | 241V or others |
| Rated Frequence | 50/60HZ |
| Insulation oil | Mineral oil |
| Tapping Range | ±2×2.5%/±5% |
| Temperature rise℃) | 65 |
| Connection Group | Dyn11/Yyn0 |
| Total weight(kg) | 1700 |
>> Product Uses
1.Urban Power Distribution Networks
Widely adopted in city substations and residential complexes to step down 10kV to 400V for daily consumption. The oil-cooled design ensures silent operation (≤55dB) ideal for densely populated areas while meeting strict urban safety regulations.
2.Industrial Power Systems
Essential for manufacturing plants, mining operations and assembly lines requiring stable medium-voltage distribution. Its 150% overload capacity reliably supports heavy machinery startups and production peak loads.
3.Renewable Energy Integration
Commonly installed in solar/wind farms as grid-connection transformers. Special anti-corrosion treatment protects components in coastal/high-humidity environments, maintaining 98% efficiency despite renewable power fluctuations.
4.Rural Electrification Projects
Perfect for remote villages due to minimal maintenance requirements. Operates reliably in extreme conditions (-30°C~50°C) with automatic voltage regulation (±3%) for areas with unstable grid supply.
5.Critical Infrastructure Support
Deployed in hospitals, data centers and transportation hubs where power continuity is vital. The hermetically sealed tank prevents oil leakage, achieving IP55 protection for indoor/outdoor installations.
>> Product Accessories and Routine Tests
Lifting lug
HV bushing
LV bushing
Off load tap changer/On load tap changer
Pressure relief valve
Drain & Sampling valve
Nameplate
Oil temperature indicator
Oil level indicator
Measurement of Insulation Resistance
Voltage Ratio Measurement and Vector Group Verification Test
Measurement of No-load Loss and Current
Measurement of Winding Resistance
Measurement of Short-circuit Impedance and Load Loss
Induced Voltage Withstand Test
Separate-Source Power-Frequency Voltage Withstand Test
Leak Test
Oil Test
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