Product Description
Oil Immersed Series Transformer:
The S11-M series fully sealed oil-immersed power transformer, a remarkable innovation by Zhejiang Chaotai Complete Equipment Co., Ltd., stands out with its exceptional attributes of low loss, minimal noise, and high efficiency. This transformer is engineered to deliver significant energy-saving benefits while minimizing environmental impact. Distinguished from conventional oil-immersed transformers, this fully sealed variant eliminates the need for an oil conservator. The oil volume is ingeniously adjusted and compensated automatically through the elasticity of the corrugated oil tank sheets, ensuring the transformer is isolated from air exposure. This not only prevents and decelerates oil deterioration and insulation aging but also significantly enhances operational reliability, virtually eliminating the need for maintenance during normal operations.
1. Power Capacity: 25-2500KVA, 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to meet customer-specific requirements. 2. Voltage Level: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Off-circuit or On-load.
4. Tapping Range: ±5%, ±2x2.5%, ±4x2.5%
5. Frequency: Options available for both 50Hz or 60Hz
6. Phases: Available in both three or single-phase configurations
7. Connection Symbol: Dyn11, Yyn0 (or as per request)
8. Short-Circuit Impedance: Built to Standard Impedance specifications
9. Altitude: Suitable for altitudes not exceeding 1000m and ambient temperatures not exceeding 40°C.
If these conditions are unmet, adaptations to parameters will be made in accordance with standards to ensure optimal performance.
Power Capacity: Ranges from 25 to 2500KVA
Voltage Levels: Options for 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 24KV, 30KV, 33KV, 35KV, 36KV
Voltage Level:
Type of Voltage Regulation: Choose between Off-circuit or On-load regulation
Tapping Range: Available in ±5%, ±2x2.5%, ±4x2.5% increments
Frequency: Configurable for 50Hz or 60Hz
Phases: Options include three-phase or single-phase systems
Connection Symbol: Available in Dyn11, Yyn0 (or customized as requested)
Short-circuit Impedance: Conforms to Standard Impedance specifications
Altitude Suitability: Operable at altitudes up to 1000m with ambient temperatures not exceeding 40°C
In cases where these conditions are not met, we tailor parameters in accordance with standard practices to maintain performance integrity.
The fully sealed oil-immersed power transformer from Chaotai Power exemplifies the pinnacle of energy efficiency, with advantages such as low loss, reduced noise, and high effectiveness, all contributing to a substantial reduction in environmental impact.
In comparison to traditional oil-immersed transformers, the fully sealed design eliminates the oil conservator, allowing the oil volume to be automatically adjusted by the elastic corrugated oil tank sheets. This innovative isolation from air exposure prevents oil degradation and insulation aging, boosting operational reliability and eliminating the need for maintenance under standard operating conditions.
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. is a pioneering high-tech enterprise dedicated to advancing the field of electrical integration. With an elite team specializing in research, development, production, and exceptional service, we boast over 15 years of unparalleled industry expertise.
Our distinguished product line features high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, as well as cutting-edge gas-insulated switchgear and substations. These innovative solutions are extensively utilized across a diverse range of sectors, including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academic institutions, the medical and pharmaceutical industry, municipal commerce, water conservancy and hydropower, road traffic management, and both commercial and residential developments.
Embracing a philosophy of 'smart manufacturing' and unwavering commitment to technological innovation, we proactively recruit top-tier technical talent to elevate our core competitive edge. Our mission is to deliver invaluable services to our clientele and forge the industry's premier brand. Since inception, Zhejiang ChaoTai has consistently advanced, transforming from inception to excellence. We are steadfast in fostering innovation, adhering to a contemporary business model that emphasizes quality for survival, reputation for development, market orientation, and management-driven efficiency. Rooted in our guiding principles — technology leadership, standardized management, superior quality, and customer satisfaction — we continually enhance our market standing. Our dedication to serving China's electric power and grid distribution is driven by aspirations of faster, stronger, and higher achievements. With integrity at our core, uncompromising quality, exemplary service, and ultimate customer satisfaction remain our perpetual tenets. Our relentless pursuit of excellence, continuous innovation, and commitment to building a trustworthy brand are the cornerstones of our development ethos. Your recognition fuels our progress. We extend heartfelt gratitude to our loyal customers for their enduring support and eagerly anticipate collaborating with you to craft a brighter future together.
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.
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