Product Description



Oil Immersed Series Transformer:
Introducing the extraordinary S11-M series: a fully sealed, oil-immersed power transformer meticulously engineered by Zhejiang Chaotai Complete Equipment Co., Ltd. This distinguished transformer boasts unparalleled features of minimal energy consumption, whisper-quiet operation, and remarkable efficiency. As an exemplary energy solution, it significantly curtails environmental pollution. Unlike traditional oil-immersed variants, this sophisticated model eliminates the need for an oil conservator. Its intelligent design autonomously adjusts to oil volume shifts via the corrugated oil tank's flexibility, effectively sealing the transformer from air exposure. This state-of-the-art feature prevents oil degradation, retards insulation aging, and substantially enhances operational reliability, all the while negating the necessity for routine maintenance.
1. Power Capacity: Spanning 25-2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to meet specific customer specifications 2. Voltage Level: Available in ranges of 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Offered in both Off-circuit or On-load variations, tailored to your operational needs.
4. Tapping Range: Configurable at ±5%, 2x2.5%, or ±4x2.5%, ensuring precise voltage adjustments.
5. Frequency: Flexible choices available for either 50Hz or 60Hz, catering to diverse global standards.
6. Phases: Available in both Three-phase and single-phase configurations, adaptable to any power requirement.
7. Connection Symbol: Offered as Dyn11, Yyn0, with fully customizable options upon request.
8. Short-circuit Impedance: Expertly designed with Standard Impedance to ensure optimal performance.
9. Operational Conditions: Designed to perform reliably at altitudes not exceeding 1000m, with ambient temperatures below 40°C. Should these conditions not be met, adjustments in parameters will adhere strictly to standard industry protocols.
All necessary adjustments will comply stringently with industry standards, ensuring superior performance and reliability.
Power Capacity: Ranges from 25-2500KVA, offering extensive adaptability for various applications.
Voltage Levels: Covering extensive ranges such as 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV for optimal versatility.
Voltage Level Overview:
Type of Voltage Regulation: Versatile options available in Off-circuit or On-load, suited to diverse needs.
Tapping Range: Available at ±5%, ±2x2.5%, ±4x2.5%, ensuring meticulously accurate voltage control.
Frequency Options: Available in both 50Hz or 60Hz modes, aligning with international standards.
Phases: Seamlessly available in Three-phase or single-phase to match your specific requirements.
Connection Symbol: Configurable as Dyn11, Yyn0, with customization options available upon request to suit your specifications.
Short-circuit Impedance: Engineered with exemplary Standard Impedance for consistent reliability.
Operational Conditions: Designed to withstand altitudes not exceeding 1000m and ambient temperatures not exceeding 40°C, with precision adjustments available if conditions vary.
In cases where conditions differ, we will execute necessary parameter adjustments in full adherence to standard guidelines, ensuring uncompromised operation.
This fully sealed, oil-immersed power transformer, a marvel of innovation from Chaotai Power, is crafted for minimal energy loss, whisper-quiet operation, and exceptional efficiency. It stands as a premier energy-saving solution, drastically reducing environmental pollution.
Revolutionizing traditional designs, this fully sealed transformer foregoes the need for an oil conservator. It adeptly manages oil volume variations with the elasticity of the corrugated oil tank sheet, ensuring the transformer remains isolated from air. This vital feature not only prevents oil degradation and insulation aging but also enhances 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. is a luminary in the sphere of electrical integration, epitomizing cutting-edge technology and groundbreaking innovation. As an illustrious high-tech enterprise, we shine with a dedicated R&D, production, and service team, fortified by an impressive legacy spanning over 15 years of invaluable industry prowess. Our steadfast commitment to excellence sets us apart as a leader in innovation, consistently establishing new benchmarks and pioneering advancements within the industry.
Our dynamic and advanced product range features trailblazing solutions such as high-voltage solid-state soft starters, innovative capacitor cabinets, versatile high and low voltage switchgear, state-of-the-art gas-insulated switchgear, and efficient substations. These indispensable products serve as critical components across a multitude of industries, including energy, chemical, metal smelting, and electric power grids, as well as industrial manufacturing. In addition, our influence extends to academia, healthcare, municipal commerce, water management, hydropower, and road traffic, catering to both commercial and residential applications. Proudly, we power the future with our transformative solutions, making a profound impact across these essential sectors.
Guided by a philosophy of relentless technological advancement and 'smart manufacturing,' we are devoted to fostering a culture of excellence by integrating top-tier technical talents and pioneering strategies. This strategic commitment bolsters our core competencies, ensuring we deliver unparalleled service value to our clients. Our growth journey is a testament to our core values: evolving from humble origins to industry leadership through steadfast dedication and innovation. Our business strategy remains resolute, focusing on quality as the foundation of survival, market reputation as the path to development, and management efficiency as the key to profitability. Our vow is to leverage 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management initiatives. Our strategic vision seeks to elevate our market competitiveness, serving China's electric power and grid transmission and distribution sectors with ambitions that soar higher, reach broader, and achieve greater success. Integrity, unrivaled quality, exceptional service, and customer satisfaction lie at the core of our values. Our relentless pursuit of excellence inspires perpetual innovation, establishing our brand as synonymous with trust. The recognition from our valued customers fuels our ambition. We extend our heartfelt gratitude to our loyal customers, both new and enduring, and warmly invite you to join Zhejiang Chaotai on a shared journey towards 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.