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S13
YAWEI
>> Product Introduction
The YAWEI S13 series is a three-phase oil-immersed distribution transformer rated at 10/0.4kV, covering 1600-3150kVA with copper windings. Designed for energy efficiency, it features a compact footprint, low noise, and strong overload capacity. Available in sealed or conservator types, it suits industrial plants, mines, petrochemical sites, and agricultural grids. Its durable build ensures reliable operation under harsh conditions, delivering stable step-down power conversion for modern distribution networks.
Product Advantage
1.Precision Voltage Regulation
Maintains ±2.5% voltage tolerance, stepping down 10kV to 400V with 98.5% efficiency (IEC 60076), reducing energy loss while ensuring stable supply.
2. Strong Electrical Isolation
Full galvanic isolation protects downstream equipment against surges up to 95kV impulse voltage.
3. Enhanced Safety
Stabilized output minimizes short circuits, equipment damage, and fire risks, protecting both personnel and connected devices.
4. Energy-Saving Design
Low-loss engineering achieves <0.8% no-load and <1.2% load losses, cutting transmission waste by up to 40% (ISO 9001 verified).
>> Technical Parameters
| Type | Three Phase Oil-immersed Distribution Transformer |
| Model | S11~20 |
| Installation | Outdoor |
| Altitude | ≤1000m |
| Rated Power | 630KVA or others |
| Cooling Method | ONAN |
| Primary Voltage | 10KV |
| Secondary Voltage | 400V 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 Operate Guide
Generic installation and use instructions for distribution transformer, containing the following sections:
1.Transportation
2. Deliverable check
3.Storage
4. Installation Enviornment Requirements
5.Electrical Installation
6.Common components
7.Common operation
8.Fuse installation
9.DC resistance
10. Pessure resistance
11. Transformer ration
12.Power-on opeartion
13.Power-off repair
14.General maintenance
15.Component maintenance
16.Component replacement
17.Transformer troubleshooting
18.Table of tightening torque
Product Video
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