S11 / 20kV oil immersed distribution transformer is widely used in industrial and mining enterprises, agriculture and civil buildings, and also suitable for places with many oil and chemical substances in petroleum and chemical industries. The low-voltage winding with the capacity of 630 ~ 2000kVA adopts the tubular or spiral structure, with high mechanical strength, balanced ampere turn distribution and good short-circuit resistance.
| Type | Rated Capacity （KVA） |
H.V. winding (kV) | L.V. winding (kV) | Vector Group | Short-circuit impedance (%) |
No-Load Loss(W) |
Load Loss (W) |
|---|---|---|---|---|---|---|---|
| S11-30/20 | 30 | 20 |
0.4 | Dyn11 Yyn0 |
4 | 100 | 690/660 |
| S11-50/20 | 50 | 130 | 1010/960 | ||||
| S11-63/20 | 63 | 150 | 1200/1150 | ||||
| S11-80/20 | 80 | 180 | 1440/1370 | ||||
| S11-100/20 | 100 | 200 | 1730/1650 | ||||
| S11-125/20 | 125 | 240 | 2080/1980 | ||||
| S11-160/20 | 160 | 290 | 2540/2420 | ||||
| S11-200/20 | 200 | 340 | 3000/2860 | ||||
| S11-250/20 | 250 | 400 | 3520/3350 | ||||
| S11-315/20 | 315 | 480 | 4210/4010 | ||||
| S11-400/20 | 400 | 570 | 4970/4730 | ||||
| S11-500/20 | 500 | 680 | 5940/5660 | ||||
| S11-630/20 | 630 | 4.5 | 810 | 6820 | |||
| S11-800/20 | 800 | 980 | 8250 | ||||
| S11-1000/20 | 1000 | 1150 | 11330 | ||||
| S11-1250/20 | 1250 | 1380 | 13200 | ||||
| S11-1600/20 | 1600 | 1660 | 15950 | ||||
| S11-2000/20 | 2000 | 1950 | 19140 | ||||
| S11-2500/20 | 2500 | 2340 | 22220 |
The low-voltage winding is of cylindrical or spiral structure, with high mechanical strength and good short-circuit resistance.
The corrugated oil tank is adopted to replace the oil conservator. The oil tank cover and the oil tank are all welded along the edge or fastened with bolts, thus prolonging the service life of the transformer oil.
After oil removal, embroidery removal and phosphating treatment, the product is sprayed with three times of primer and one time of finish paint inside and outside. The product is salt fog proof, damp heat proof and fungus proof, which can meet the special requirements of metallurgy, petrochemical system and wet and polluted areas. It is beautiful and reliable.
The transformer oil tank is fully sealed, and equipped with pressure reducing valve, signal thermometer, gas relay, etc according to the standard requirements to ensure the safe operation of the transformer.
This series of products are beautiful in appearance, small in size, and can reduce the installation area. It is an ideal maintenance-free distribution product.
1. Altitude 1000 m
2. Maximum ambient temperature + 40 ℃
3. Minimum ambient temperature - 25 ℃
4. Sunshine intensity 0.1w/cm (wind speed: 0.5m / s)
5. Maximum daily temperature difference 25K
6. Indoor relative humidity: daily average value ≤ 95%, monthly average value ≤ 90%
7. Maximum wind speed 35m / S (Note: wind speed refers to the average wind speed during 10min 10m from the ground)
8. Load with 10 mm ice cover and 17.5 M / s wind speed
9. Earthquake resistance
The horizontal acceleration on the ground is 0.2g; and the vertical acceleration is 0.1g. The method of resonance, sine and beat wave test is adopted; 5 times of excitation, 5 waves each time, 2s interval each time. The safety factor shall not be lower than 1.67.
10. Rated frequency : 50Hz
11. Installation location: indoor / outdoor
12. Specific creepage distance of external insulation: indoor ≥ 20 mm / kV Outdoor ≥ 30 mm / kV
13. System short-circuit current: 20kV not more than 20KA
Clients need advise main parameters of the transformer like capacity, input voltage, output voltage and connection group in inquiry.
Other custom requirement.
As an enterprise specializing in transformer production for 20 years, we have high quality, fast delivery, guarantee after-sales service and factory price. What's more, we have ISO9001-2008, OHSAS 18001:2007, ISO4001:2004L certificates and IEC, ANSI, KEMA, GOST standard.
Yes, each product comes with two year(Up to 5 years)warranty to ensure the correct use of the product by the customer.
11kV-220kV Oil-immersed Power Transformer, Dry-type Transformer, Unpacked H Grade Dry Transformer, Oil-immersed Distribution Transformer, Pad-mounted Transformer.
Yes! Our products can be customized. We have design and engineering teams, and we can customize products according to customers' drawings or requirements.
1 set.
It depends on the quantity of your order. It usually takes 20-45 days.
We always adhere to technology as our guiding principle, upholding the spirit of "dedication, professionalism, and focus," to provide meticulously crafted tools and serve millions of users worldwide.
We have established a professional R&D team to continuously optimize our products, save energy, and adopt new manufacturing processes to tailor high-performance, cost-effective equipment for our customers.
We have more than 20 years to produce different kinds of transformers.
The factory's 6S management system improves efficiency, ensures quality, and safeguards the quality of the products the company outputs.
As a high-tech enterprise integrating R&D, production and sales, we ensure product quality while maximizing cost advantages for our customers.
We have a strong supply chain and after-sale service.
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