Product Description
Oil Immersed Transformer Series:
The S11-M series, a fully sealed oil immersed power transformer, is a testament to Chaotai Power's commitment to excellence. Offering notable benefits such as minimized energy loss, reduced noise levels, and unmatched efficiency, this transformer is designed for superior energy conservation and environmental sustainability. Unlike traditional transformers, our innovative fully sealed design eliminates the need for an oil conservator. The oil volume adjusts seamlessly via the corrugated oil tank's flexible sheets, keeping the system isolated from air exposure. This feature significantly delays oil degradation and insulation wear, thereby enhancing operational reliability and reducing the need for maintenance.
1. Power Capacity: Ranging from 25 to 2500KVA; available in 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to client specifications. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit and On-load configurations.
4. Tapping Range: Offers ±5 %, 2x2.5 %, and ±4x2.5 % flexibility.
5. Frequency: Available in both 50Hz or 60Hz variations.
6. Phases: Customizable for Three-phase or Single-phase operations.
7. Connection Symbol: Typically Dyn11, Yyn0, or tailored as per request.
8. Short-circuit Impedance: Standardized for optimal performance.
9. Altitude: Ideal for locations not exceeding 1000m above sea level, with ambient temperatures below 40°C.
Should conditions exceed these, we will tailor parameters to adhere to standard specifications.
Power Capacity: Efficiently ranges from 25-2500KVA.
Voltage Levels: Tailored offerings include IOkV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level:
Type of Voltage Regulation: Options include Off-circuit or On-load.
Tapping Range: Flexibility includes ±5%, ±2x2.5%, ±4x2.5%.
Frequency: Configurable to either 50Hz or 60Hz.
Phases: Versatile for Three-phase or Single-phase applications.
Connection Symbol: Standard options are Dyn11, Yyn0, or as per specific requirements.
Short-circuit Impedance: Maintained at standard levels for efficiency.
Altitude and Temperature: Suitable for heights up to 1000m, and temperatures not exceeding 40°C.
In cases where these conditions are exceeded, parameter adjustments will be made to comply with standards.
The fully sealed oil immersed power transformer by Chaotai Power stands out with its low loss, low noise, and high efficiency, ensuring excellent energy savings and reduced pollution.
Our fully sealed design distinguishes itself by removing the oil conservator. The elastic corrugated sheet in the oil tank automatically compensates for oil volume changes, keeping the transformer air-tight. This innovation significantly slows oil deterioration and insulation aging, boosts operational reliability, and eliminates the need for regular maintenance.
Product Parameters
| Oil immersed transformer product parameters |
| Rated capacity kVA |
Voltage combination |
NO-load loss W |
Load loss W |
No-load current% |
Short-circuit |
| HV (KV ) |
HV tapping range |
LV (KV) |
Connection symbol |
Impedance |
| 30 |
6.3kV
10.5kV
11kV
13.2kV
13.8kV
15kV |
±2
× 2.5%;
Or ±5% |
0.4 |
Dyn11 or Yyn0 |
90 |
660 |
2.1 |
5.5 |
| 50 |
130 |
960 |
2 |
| 63 |
150 |
1145 |
1.9 |
| 80 |
180 |
1370 |
1.8 |
| 100 |
200 |
1650 |
1.6 |
| 125 |
240 |
1980 |
1.5 |
| 160 |
290 |
2420 |
1.4 |
| 200 |
330 |
2860 |
1.3 |
| 250 |
400 |
3350 |
1.2 |
| 315 |
480 |
4010 |
1.1 |
| 400 |
570 |
4730 |
1 |
| 500 |
680 |
5660 |
1 |
| 630 |
810 |
6820 |
0.9 |
6 |
| 800 |
980 |
8250 |
0.8 |
| 1000 |
1150 |
11300 |
0.7 |
| 1250 |
1350 |
13200 |
0.7 |
| 1600 |
1630 |
15950 |
0.6 |
| 2000 |
1950 |
19140 |
0.6 |
| 2500 |
2340 |
22200 |
0.6 |
Main product
Company Profile
Zhejiang ChaoTai Complete Equipment Co., Ltd. stands as a beacon of innovation in the realm of electrical integration. As a high-tech enterprise, we pride ourselves on our elite Research & Development, production, and service teams, each bringing over 15 years of rich industry experience to the table.
Our diverse product range is the cornerstone of various industries, featuring high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and cutting-edge substations. These products are pivotal across an array of sectors: energy and chemical industries, metal smelting, power grids, industrial manufacturing, academic institutions, healthcare and pharmaceuticals, municipal commerce, water conservancy and hydropower, road traffic systems, and both commercial and residential landscapes.
At the heart of Zhejiang ChaoTai is a steadfast commitment to technological innovation and the philosophy of 'smart manufacturing.' We are relentlessly pursuing high-caliber technical talent to bolster our core competitive edge, ensuring we deliver invaluable services and create an illustrious brand in the industry. Our journey is marked by relentless progress and refinement; from humble beginnings to industry excellence. We champion innovation, guided by principles of quality for survival, market orientation, reputation-driven growth, and efficiency through adept management. Our ethos is underpinned by 'technology as the guide, standardized management, superior quality, and customer satisfaction.' This enhances our market competitiveness, empowering us to achieve unprecedented milestones in China's power and grid transmission and distribution sectors. Integrity is our foundation, quality is our hallmark, service is our ethos, and customer satisfaction is our eternal commitment. We are devoted to pursuing excellence, fostering continuous innovation, and establishing a brand that earns unwavering trust. Your recognition fuels our ambition. We extend heartfelt gratitude to all our esteemed customers for their unwavering support and trust, and Zhejiang ChaoTai eagerly anticipates joining forces with you to forge a brighter future.
Our Advantages
Certifications
After Sales Service
FAQ
Q1. Are you a factory or trading company?
A.We are a factory.
Q2. Where is your factory located? How can I visit there?
A. Our factory is located in Wenzhou City, Zhejiang Province, China. You can fly to Longwan airport directly. All our clients,from home or abroad, are warmly welcome to visit us!
Q3. What's the payment term?
A. We accept TT. 30% deposit and 70% before shipment, Western Union, L/C At Sight is ok! We'll l show you the photos of the products and packages before you pay the balance.
Q4. Tell me the standard of package? What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons, If vou have leaallyl registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q5. Would you accept to use our logo?
A. If you have good quantity,it absolute no problem to do OEM.
Q6. How about the transport?
A. If the number of aoods is small we usually use TNT.DHL.FEDEX.EMS and some express voull offered. If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
Q7. What is your Production lead time /delivery time?
A: Generally, it will take 25 to 30 days after receivina vour advance payment.
The specificl delivery time depends on the items and the quantity of your order. Silicone rubber's reqular product is 1,000/ week, Porcelain's need 2-3 weeks about 1000 pcs.
Q8. How do you make our business long-term and good relationship?
A:l. We keep aood auality and competitive price to ensure our customers benefit:
A: 2. We respect every customer as our friend and we sincerely do business and make friendsl with them, no matter where they come from.
A: 3.Most goods we have the type report according the IEC STANDARD
Q9. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the courier cost.
Q10. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q11. What is your terms of delivery?
A: EXW, FOB, CFR, CIF.
Q12.What certificates do you have?
A:ISO9001,OHSAS18001,ISO14001 certificate and Type test report of product.
Audited Supplier 
){kind=link}