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S22-M Fully Sealed Oil-Immersed Transformer - 400V Low Voltage, 10kV High Voltage - China Suppliers & Factory
Product Features
Fully Sealed and Maintenance-Free Design
The transformer adopts a fully sealed structure design, with the oil tank completely isolated from the outside air. The insulating oil will not oxidize or deteriorate due to contact with air, nor will it absorb moisture from the air. This effectively avoids problems of insulation aging and deterioration of the oil quality. Compared with traditional non-sealed transformers, there is no need for regular oil replenishment or oil replacement maintenance work, significantly reducing the workload and cost of operation and maintenance. At the same time, the fully sealed design can prevent dust, impurities, etc. from entering the transformer interior, reducing the wear and corrosion of internal components.
Intelligent Monitoring and Early Warning Function
Transformers are generally equipped with intelligent monitoring systems, which can monitor key operating parameters such as oil temperature, winding temperature, oil level, insulation status, and load current of the transformer in real time. The monitoring data is transmitted to the background monitoring center through wireless communication modules, allowing staff to remotely and in real time grasp the operating status of the transformer. When the monitoring parameters exceed the set thresholds, the system will automatically issue audible and visual alarms and promptly push warning information to relevant personnel, facilitating the early detection of potential fault hazards and preventing the expansion of faults.
Low-Noise Green Operation
The transformer achieves low-noise operation by optimizing the core structure, using shock-absorbing materials and implementing a fully sealed design. Its no-load noise level is ≤ 45 dB(A), and the load noise level is ≤ 55 dB(A), which is 10–15 dB(A) lower than that of traditional transformers and meets the noise requirements of national environmental protection standards. The core adopts a fully inclined joint stacking process, reducing the noise generated by magnetic expansion; the coil winding is tightly arranged, lowering the electromagnetic vibration noise; rubber shock-absorbing pads are installed at the bottom of the oil tank and the bottom bracket to effectively absorb the vibrations generated during operation and reduce noise transmission. The low-noise design enables the S13 transformer to be directly installed in areas with noise sensitivity such as residential communities and commercial centers, enhancing the comfort of the power environment and contributing to the construction of a green city.
Product Specifications
| Rated Capacity (KVA) | Connection Group Label | Voltage Combination (KV) | No-Load Current (%) | Load Loss (T) | No-Load Loss (T) | Short Circuit Impedance (%) | |||
| H.V. | Tapping Range | L.V. | DY | Yy | |||||
| 30 | Yyn0 Dyn11 |
10 6.3 6 |
±5% ±2×2.5% |
0.4 | 1.5 | 505 | 480 | 80 | 4.0 |
| 50 | 1.3 | 730 | 695 | 100 | |||||
| 63 | 1.2 | 870 | 830 | 110 | |||||
| 80 | 1.2 | 1050 | 1000 | 130 | |||||
| 100 | 1.1 | 1265 | 1200 | 150 | |||||
| 125 | 1.1 | 1510 | 1440 | 170 | |||||
| 160 | 1.0 | 1850 | 1760 | 200 | |||||
| 200 | 1.0 | 2185 | 2080 | 240 | |||||
| 250 | 0.9 | 2560 | 2440 | 290 | |||||
| 315 | 0.9 | 3065 | 2920 | 340 | |||||
| 400 | 0.8 | 3615 | 3440 | 410 | |||||
| 500 | 0.8 | 4330 | 4120 | 480 | |||||
| 630 | 0.6 | 4960 | 4960 | 570 | 4.5 | ||||
| 800 | 0.6 | 6000 | 6000 | 700 | |||||
| 1000 | 0.6 | 8240 | 8240 | 830 | |||||
| 1250 | 0.5 | 9600 | 9600 | 970 | |||||
| 1600 | 0.5 | 11600 | 11600 | 1170 | |||||
Detail Pictures
Frequently Asked Questions
Q
What does the fully sealed design of the oil-immersed transformer mean?
The fully sealed design means the oil tank is completely isolated from the outside air. This prevents the insulating oil from oxidizing, deteriorating, or absorbing moisture, effectively avoiding insulation aging and oil quality deterioration without the need for regular oil replenishment or replacement.
Q
What maintenance is required for this oil-immersed transformer?
Thanks to its fully sealed and maintenance-free design, this transformer significantly reduces routine maintenance needs. There is no requirement for regular oil replenishment or oil replacement, which lowers both the workload and the cost of operation and maintenance compared to traditional non-sealed transformers.
Q
What parameters does the intelligent monitoring system track?
The intelligent monitoring system tracks key operating parameters including oil temperature, winding temperature, oil level, insulation status, and load current. Data is transmitted in real time to a background monitoring center via wireless communication modules, enabling remote supervision and early fault detection.
Q
What is the noise level of this transformer compared to traditional models?
This transformer achieves a no-load noise level of ≤ 45 dB(A) and a load noise level of ≤ 55 dB(A), which is 10–15 dB(A) lower than traditional transformers. It meets national environmental protection noise standards, making it suitable for noise-sensitive areas such as residential communities and commercial centers.
Q
What rated capacity range does this transformer cover?
This transformer covers a rated capacity range from 30 KVA to 1600 KVA, with high-voltage options of 10 KV, 6.3 KV, and 6 KV, and a low-voltage output of 0.4 KV. The short circuit impedance is 4.0% for capacities up to 500 KVA and 4.5% for 630 KVA and above.
Q
How does the transformer reduce vibration and noise during operation?
The transformer uses a fully inclined joint stacking process for the core to reduce magnetic expansion noise, tightly arranged coil windings to lower electromagnetic vibration noise, and rubber shock-absorbing pads installed at the bottom of the oil tank and bracket to absorb operational vibrations and minimize noise transmission.