Product Description



Oil Immersed Series Transformer:
Introducing the extraordinary S11-M series, meticulously crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This distinguished, fully sealed oil-immersed power transformer boasts unparalleled traits of minimal energy consumption, whisper-quiet operation, and outstanding efficiency, setting a new standard for exemplary energy solutions. It dramatically curtails environmental pollution, standing out significantly from conventional oil-immersed counterparts. The innovative model ingeniously eliminates the need for an oil conservator, thanks to the intelligent design that autonomously adjusts to oil volume shifts using the corrugated oil tank's flexibility. This effectively seals the transformer from air exposure, preventing oil degradation, retarding insulation aging, and significantly enhancing operational reliability. Additionally, it eliminates the need for maintenance in routine operations, making it a visionary choice in modern power management.
1. Power Capacity: Offering an extensive range from 25-2500KVA, with versatile options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to meet specific customer specifications, ensuring adaptability to diverse energy demands 2. Voltage Level: Richly diverse, available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Thoughtfully offered in both Off-circuit or On-load variations to suit varied application needs
4. Tapping Range: Elegantly configurable at ±5%, 2x2.5%, or ±4x2.5%, providing flexibility and precision in power management
5. Frequency: Available in adaptable options for either 50Hz or 60Hz, catering to international standards
6. Phases: Versatile availability in Three-phase or single-phase configurations, ensuring comprehensive application coverage
7. Connection Symbol: Offered as Dyn11, Yyn0, with available customization options, making it tailored to exact specifications
8. Short-circuit Impedance: Innovatively designed with Standard Impedance, ensuring reliability and safety
9. Operational Conditions: Ideally suited for altitudes not exceeding 1000m and ambient temperatures below 40°C. Should these conditions not be met, adjustments in parameters will follow stringent industry protocols, maintaining performance and safety.
All necessary adjustments will be impeccably aligned with industry standards, ensuring peak performance and compliance.
Power Capacity: Broadly ranging from 25-2500KVA, catering to a wide spectrum of energy needs
Voltage Levels: Extensively spanning 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, showcasing adaptability to diverse voltage requirements
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit or On-load options, offering flexibility for varied operational scenarios
Tapping Range: Elegantly offered at ±5%, ±2x2.5%, ±4x2.5%, delivering precision in power distribution
Frequency Options: Available in versatile 50Hz or 60Hz modes, ensuring compatibility with global power grids
Phases: Providing options for Three-phase or single-phase, catering to comprehensive application needs
Connection Symbol: Configurable as Dyn11, Yyn0, with customization options available upon request, offering tailored connectivity solutions
Short-circuit Impedance: Expertly engineered with Standard Impedance, ensuring robust operational reliability
Operational Conditions: Ingeniously designed for altitudes not exceeding 1000m, with ambient temperatures not exceeding 40°C, ensuring optimum performance in diverse environments
In cases where conditions differ, necessary parameter adjustments will be meticulously performed in adherence to standard guidelines, upholding performance and safety.
This fully sealed oil-immersed power transformer, a marvel of innovation from Chaotai Power, is expertly crafted to deliver minimal energy loss, whisper-quiet operation, and exceptional efficiency. It stands as a premier energy-saving solution, dramatically reducing pollution and setting new benchmarks in power management.
In a bold departure from conventional oil-immersed transformers, this fully sealed design ingeniously forgoes the oil conservator. With its adept management of oil volume variations using the flexibility of the corrugated oil tank sheet, it ensures the transformer remains perfectly isolated from air. This crucial feature not only prevents oil degradation and insulation aging but also enhances reliability and eradicates the need for routine maintenance, offering a revolutionary approach to transformer engineering.
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 cutting-edge innovation and technological advancement in the field of electrical integration. Celebrated as a distinguished high-tech enterprise, we take pride in our exceptional R&D, production, and service teams, each bolstered by an impressive legacy exceeding 15 years. Our unwavering commitment to excellence elevates us as an industry leader, consistently setting the standards for innovation and excellence.
Our extensive and advanced product portfolio encompasses breakthrough solutions, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These essential products are key to a multitude of industries, spanning from energy and chemical sectors to metal smelting, electric power grids, and industrial manufacturing. Furthermore, our influence extends to academia, healthcare, municipal commerce, water management, hydropower, and road traffic, covering both commercial and residential applications. We proudly empower the future with our transformative solutions, making a significant impact across these critical sectors.
Driven by a philosophy of relentless technological progress and 'smart manufacturing,' we are committed to fostering a culture of excellence by integrating top-tier technical talent and innovative strategies. This commitment to strategic excellence strengthens our core competencies, ensuring unparalleled service value for our clients. Our growth narrative is a testament to our core values: evolving from modest beginnings to industry leadership through steadfast dedication and innovation. Our business strategy unwaveringly prioritizes quality as the cornerstone of survival, market reputation as the path to development, and management efficiency as the key to profitability. Our pledge is to embrace 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision aims to heighten our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that aim higher, reach further, and achieve more. Integrity, unmatched quality, exceptional service, and customer satisfaction lie at the heart of our values. Our relentless pursuit of excellence drives us to continually innovate, establishing our brand as synonymous with trust. The acknowledgment from our valued customers fuels our ambition. We extend heartfelt gratitude to our loyal customers, both new and longstanding, and warmly invite you to join Zhejiang Chaotai on a shared journey towards a brighter tomorrow.
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.