Product Description



Oil Immersed Series Transformer:
Introducing the remarkable S11-M series, a fully sealed oil-immersed power transformer, ingeniously crafted by the experts at Zhejiang Chaotai Complete Equipment Co., Ltd. This acclaimed transformer boasts extraordinary features, showcasing minimal energy consumption, ultra-low operational noise, and superior efficiency. As a paragon of sustainable energy solutions, it remarkably diminishes environmental pollution. Unlike traditional oil-immersed models, this avant-garde transformer dispenses with the need for an oil conservator. Its advanced engineering effortlessly accommodates oil volume fluctuations through the adaptability of the corrugated oil tank, safeguarding the transformer from air exposure. This cutting-edge design prevents oil deterioration, slows insulation aging, and significantly boosts reliability, all while obviating the need for routine maintenance.
1. Power Capacity: Spanning an impressive range from 25KVA to a powerful 2500KVA, with configurations available for 24KV, 30KV, 33KV, 35KV, 36KV, customizable to precise customer requirements 2. Voltage Level: Versatile options available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Flexible offerings in both Off-circuit or On-load variations
4. Tapping Range: Expertly configurable at ±5%, 2x2.5%, or ±4x2.5%, ensuring optimal performance
5. Frequency: Choose between 50Hz or 60Hz to meet your specific application requirements
6. Phases: Available in versatile Three-phase or single-phase configurations to suit diverse needs
7. Connection Symbol: Offered as Dyn11, Yyn0, with the flexibility of customization options as per your specific demands
8. Short-circuit Impedance: Meticulously designed with Standard Impedance for consistent reliability
9. Operational Conditions: Suitably engineered for altitudes up to 1000m with ambient temperatures below 40°C. Should these parameters be exceeded, adjustments will adhere to standard industry protocols.
All necessary adjustments will be executed in rigid compliance with industry standards.
Power Capacity: Offering a dynamic range from a modest 25KVA to a robust 2500KVA
Voltage Levels: Expansive range spanning 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV to meet varied applications
Voltage Level Overview:
Type of Voltage Regulation: Available in adaptable Off-circuit or On-load options to suit diverse operational needs
Tapping Range: Flexibly offered at ±5%, ±2x2.5%, ±4x2.5% for enhanced precision
Frequency Options: Available in versatile 50Hz or 60Hz modes, catering to global power standards
Phases: Options include adaptable Three-phase or single-phase configurations, catering to your specific requirements
Connection Symbol: Configurable as Dyn11, Yyn0, with the option for tailored customization upon request
Short-circuit Impedance: Skillfully engineered with Standard Impedance to ensure consistent performance
Operational Conditions: Designed to operate seamlessly at altitudes up to 1000m and ambient temperatures not exceeding 40°C
In instances where conditions vary, we will conduct necessary parameter adjustments in strict adherence to recognized guidelines.
This fully sealed oil-immersed power transformer, a pinnacle of innovation from Chaotai Power, is meticulously engineered for minimal energy loss, whisper-quiet operation, and unparalleled efficiency. It stands as a leading energy-saving solution, significantly reducing pollution and enhancing environmental protection.
Unlike conventional oil-immersed transformers, this fully sealed marvel forgoes the oil conservator. Ingeniously managing oil volume fluctuations with the elasticity of the corrugated oil tank sheet, it ensures the transformer remains isolated from air exposure. This vital feature not only prevents oil degradation and insulation aging but also significantly boosts reliability and eliminates the need for routine 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. shines brilliantly as a beacon of cutting-edge technology and unmatched innovation in the realm of electrical integration. As a renowned high-tech enterprise, our company distinguishes itself with dedicated R&D, production, and service teams. These teams are backed by an impressive legacy of over 15 years of invaluable industry expertise. Our unwavering commitment to excellence underscores our prestigious position as a leader in innovation, consistently setting new benchmarks in the industry.
Our diverse and advanced product portfolio includes pioneering solutions such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These critical products are essential across a wide array of industries, from energy and chemical sectors to metal smelting, electric power grids, and industrial manufacturing. Furthermore, we extend our influence into academia, healthcare, municipal commerce, water management, hydropower, and road traffic, impacting both commercial and residential applications. Proudly, we empower the future through our transformative solutions, making a significant impact across these vital sectors.
Rooted in a philosophy of relentless technological advancement and 'smart manufacturing,' we are committed to nurturing a culture of excellence by integrating top-tier technical talents and innovative strategies. This strategic commitment enhances our core competencies, ensuring we deliver unparalleled service value to our clients. Our growth story is a testament to our core values: evolving from humble beginnings to industry leadership through unwavering dedication and innovation. Our business strategy steadfastly emphasizes quality as the cornerstone of survival, market reputation as the avenue for development, and management efficiency as the key to profitability. Our pledge is to harness 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision is to magnify 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 are at the heart of our values. Our relentless pursuit of excellence drives us to perpetually innovate, establishing our brand as synonymous with trust. The acknowledgment of our valued customers propels 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.