Product Overview
Our S11 series oil-immersed transformer features low loss and low noise, providing excellent energy efficiency and reduced environmental impact. Unlike conventional oil-immersed transformers, it eliminates the need for an oil conservator. The corrugated oil tank compensates for oil expansion and contraction through its flexible structure, ensuring automatic oil volume adjustment. The sealed design isolates the oil from air, slowing insulation aging and oxidation, which enhances reliability and enables long-term, maintenance-free operation.
Product Features
Anti-Corrosion and Anti-Rust
Before painting, our transformers undergo oil, rust, and oxide removal to clean the metal surface. A protective varnish is then applied to block air and moisture, preventing rust and corrosion. This makes our products ideal for humid environments, coastal areas, and chemical plants.
Maintenance-Free
The corrugated oil tank compensates for oil expansion and contraction through its flexible structure. This eliminates the need for a traditional conservator tank, reduces air-oil contact, and slows down oil oxidation, resulting in a truly maintenance-free solution.
Fully Sealed Structure
We use multi-layer sealing systems, including rubber rings and welded joints, to prevent oil leakage and block moisture or dust from entering the transformer.
Enhanced Anti-Loosening System
Key connections are secured with locking nuts and anti-loosening adhesive. This ensures stable operation under vibration, temperature changes, or long-term use.
Low Loss and Energy Efficient
Our S11 series transformers use high-grade grain-oriented silicon steel. Compared to S9 series, no-load losses are reduced by up to 30%, helping lower energy consumption and operating costs.
High Short-Circuit Strength
The foil winding structure, combined with optimized electromagnetic design and robust mechanical support, improves short-circuit resistance. This minimizes the risk of failure during sudden fault conditions.
Type And Meaning
Executive Standards
|
GB1094.1~2-1996 |
GB1094.4-2005 |
|
GB1094.3, 5-2003 |
GB/T6451-2008 |
Main Technical Parameters
|
Rated Capacity (kVA) |
Voltage |
Vector Group |
No-Load Loss (W) |
On-Load Loss (W) |
Short cirait-z (%) |
No-Load Cur (%) |
Weight(kg) |
Size(mm) |
Distance (mm) |
||||
|
V (kV) |
Chng (%) |
V (kV) |
Wain w.t |
Oil w.t |
Ttl w.t |
L·W·H |
|||||||
|
30 |
6 6.3 10 10.5 11 |
±5% Or ±2×2.5 |
0.4 |
Yyn0 Or Dyn11 |
100 |
600/630 |
4.0 |
2.1 |
200 |
65 |
325 |
700×555×870 |
400×400 |
|
50 |
130 |
870/910 |
2.0 |
215 |
100 |
420 |
820×660×935 |
400×400 |
|||||
|
63 |
150 |
1040/1090 |
1.9 |
260 |
110 |
460 |
850×660×950 |
400×400 |
|||||
|
80 |
180 |
1250/1310 |
1.8 |
310 |
120 |
540 |
870×665×970 |
400×450 |
|||||
|
100 |
200 |
1500/1580 |
1.6 |
350 |
145 |
620 |
880×670×1010 |
400×450 |
|||||
|
125 |
240 |
1800/1890 |
1.5 |
415 |
170 |
710 |
930×690×1040 |
450×550 |
|||||
|
160 |
280 |
2200/2310 |
1.4 |
485 |
180 |
830 |
865×765×1050 |
550×550 |
|||||
|
200 |
340 |
2600/2730 |
1.3 |
540 |
185 |
066 |
1200×770×1070 |
550×550 |
|||||
|
250 |
400 |
3050/3200 |
1.2 |
640 |
190 |
1130 |
1270×830×1120 |
550×550 |
|||||
|
315 |
480 |
3650/3830 |
1.1 |
750 |
230 |
1330 |
1420×960×1190 |
550×550 |
|||||
|
400 |
570 |
4300/4520 |
1.0 |
900 |
260 |
1560 |
1420×960×1220 |
660×660 |
|||||
|
500 |
680 |
5150/5410 |
1.0 |
1040 |
300 |
1800 |
1500×1010×1275 |
660×660 |
|||||
|
630 |
810 |
6200 |
4.5 |
0.9 |
1250 |
380 |
2125 |
1650×1140×1350 |
660×660 |
||||
|
800 |
980 |
7500 |
0.8 |
1470 |
440 |
2490 |
1750×1200×1510 |
820×820 |
|||||
|
1000 |
1150 |
10300 |
0.7 |
1720 |
500 |
2900 |
1780×1260×1550 |
820×820 |
|||||
|
1250 |
1360 |
12000 |
0.6 |
1860 |
580 |
3580 |
1860×1300×1610 |
820×820 |
|||||
|
1600 |
1640 |
14500 |
0.6 |
2280 |
730 |
4070 |
1940×1360×1660 |
820×820 |
|||||
|
2000 |
2020 |
17820 |
Please contact us for detailed data |
||||||||||
|
2500 |
2380 |
20700 |
|||||||||||
Note:
1. The diagonal load loss values in the table below apply to products in the Dyn11 connection group.
2. If you need to know the technical parameters, dimensions and weight data of 10kV large-capacity distribution transformers, please contact us.
3. We can provide transformers with various voltage levels, short-circuit impedances and coupling methods according to user requirements.
4. The weight and size data in the table are for reference only.
Application
Our low-loss oil-immersed transformers are suitable for a wide range of environments:
Standard Conditions:
Altitude ≤ 1000m; Ambient temperature: -25℃ to +40℃
Special Conditions:
Altitude > 1000m; Extreme temperature range: -45℃ to +40℃
Installation Requirements:
Indoor or outdoor locations free of corrosive gases, heavy dust, or severe pollution
Ideal for use in power distribution networks, industrial plants, commercial buildings, and infrastructure projects operating under varying climate conditions.
FAQ
Q: How long is the delivery time?
A: Normal within 10 days. It depends on detail items and quantity.Please contact us for details.
Q: How to get product quotation?
A: You can contact us anytime through the contact information on the website. You will receive our response within 24 hours.
Q: What after-sales services can I enjoy?
A: The transformer comes with a one-year warranty. Long-term online technical support is provided, along with customer training, and regular updates to maintenance manuals and technical guides.
Q: How long is the average lifespan of a transformer?
A: The lifespan ranges from 20 to 40 years, influenced by factors such as maintenance level, operating environment, and load conditions.
Q: How to determine the parameters of the transformer?
A: We can usually find the parameters in transformer nameplates, drawings, outline drawings, and technical tables.
Q: Do you have oil-immersed transformers and dry-type transformers in stock?
A: No, as transformers require customized parameters based on demand, we usually need to design them after receiving an order.
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