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Fully Sealed S22-M Oil-Immersed Transformer 400V/10kV - High Efficiency from China Suppliers and 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 "fully sealed and maintenance-free" mean for an oil-immersed transformer?
A fully sealed design means the oil tank is completely isolated from the outside air, preventing the insulating oil from oxidizing, absorbing moisture, or deteriorating. This eliminates the need for regular oil replenishment or replacement, significantly reducing long-term operation and maintenance costs.
Q
What parameters does the intelligent monitoring system track in real time?
The intelligent monitoring system continuously tracks key parameters including oil temperature, winding temperature, oil level, insulation status, and load current. Data is transmitted wirelessly to a remote monitoring center, enabling staff to detect abnormalities and respond to early warning alerts promptly.
Q
What is the noise level of this oil-immersed transformer compared to traditional models?
The 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 traditional transformers. This is achieved through a fully inclined joint stacking core process, tightly wound coils, rubber shock-absorbing pads, and a fully sealed structure.
Q
What rated capacity range is available for this transformer?
The transformer is available in a wide range of rated capacities from 30 KVA up to 1600 KVA, covering diverse application scenarios from small commercial facilities to large industrial power distribution systems.
Q
Can this transformer be installed in noise-sensitive environments such as residential areas?
Yes. Thanks to its low-noise design that meets national environmental protection standards, this transformer can be directly installed in noise-sensitive locations such as residential communities and commercial centers, making it suitable for urban green power infrastructure.
Q
What voltage combinations and connection group labels are supported?
The transformer supports high voltage options of 10 KV, 6.3 KV, and 6 KV, with a low voltage output of 0.4 KV. The tapping range is ±5% or ±2×2.5%. Supported connection group labels include Yyn0 and Dyn11, accommodating various grid connection requirements.