Mingri Electric
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| 1 | Three-phase Oil-immersed Transformer |
| 2 | Performance Level Code |
| 3 | Sealed Construction |
| 4 | Rated Capacity (kVA) |
| 5 | Voltage Class (kV) |
1. Compared to the S9 type transformer, the no-load loss of this series is reduced by approximately 30% on average.
2. The low-voltage winding uses a layer or spiral structure, with high mechanical strength and balanced Ampere-Turn distribution, resulting in superior short-circuit withstand capability.
3. The core and windings assembly includes positioning structures to prevent displacement during transportation. All fasteners feature lock nuts to ensure stability during long-term operation.
4. The transformer utilizes a corrugated tank, eliminating the conservator. The tank cover is fully welded or bolted, extending the service life of the oil.
5. The surface undergoes degreasing, derusting, and phosphating, followed by high-quality primer and topcoat, ideal for damp or polluted environments.
6. Features a fully sealed tank with standard accessories like pressure relief devices and signaling thermometers for safe operation.
7. Compact size and attractive appearance reduce the installation footprint, making it a high-quality, maintenance-free solution.
| Capacity (kVA) | High Voltage (kV) | No-load Loss (W) | Load Loss (W) | Short-circuit Impedance (%) |
|---|---|---|---|---|
| 30 | 6/6.3/6.6/10/10.5/11 | 100 | 600 | 4.0 |
| 50 | 6/6.3/6.6/10/10.5/11 | 130 | 870 | 4.0 |
| 100 | 6/6.3/6.6/10/10.5/11 | 200 | 1500 | 4.0 |
| 250 | 6/6.3/6.6/10/10.5/11 | 400 | 3050 | 4.0 |
| 500 | 6/6.3/6.6/10/10.5/11 | 680 | 5150 | 4.0 |
Note: We provide customization for various voltage combinations, short-circuit impedances, and connection methods. Special transformers (rectifier, furnace, mining, etc.) are available upon request. Data is for reference and subject to change without notice.
