Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, meticulously crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This remarkable transformer revolutionizes the industry with its impressively low energy loss, silent operation, and unparalleled efficiency. It stands as a beacon of energy conservation, dramatically reducing pollution and lessening environmental impact. Departing from the traditional models, this state-of-the-art transformer dispenses with the need for an oil conservator. By harnessing the innovative elasticity of the corrugated oil tank, it self-adjusts and compensates for oil volume variations, sustaining a perfectly sealed environment that guards the transformer from air interference. This revolutionary feature effectively halts oil degradation, considerably extends insulation longevity, and significantly bolsters operational reliability—all while eliminating the need for regular maintenance during standard operational conditions.
1. Power Capacity: Offers a range from 25-2500KVA, with customizable options for 24KV, 30KV, 33KV, 35KV, 36KV to suit specific customer requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV to meet diverse needs. 3. Type of Voltage Regulation: Provides both Off-circuit and On-load regulation options.
4. Tapping Range: Available options include ±5%, 2x2.5%, ±4x2.5% to accommodate various operational requirements.
5. Frequency: Tailored options available for either 50Hz or 60Hz, ensuring compatibility with different systems.
6. Phases: Available in versatile Three-phase or single-phase configurations to suit different applications.
7. Connection Symbol: Options include Dyn11, Yyn0, or customizable to meet your precise specifications.
8. Short-circuit Impedance: Equipped with Standard Impedance for reliable performance.
9. Operational Conditions: Engineered for altitudes not exceeding 1000m, and ambient temperatures below 40°C. For conditions outside these parameters, we offer necessary adjustments in line with standard protocols.
All adjustments will strictly comply with industry standards, ensuring optimal performance and reliability.
Power Capacity: Offers a comprehensive range from 25-2500KVA.
Voltage Levels: Diverse options available at 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV to meet varied demands.
Voltage Level Overview:
Type of Voltage Regulation: Choose from Off-circuit or On-load options, tailored to your specific application needs.
Tapping Range: Flexible options include ±5%, ±2x2.5%, ±4x2.5% to provide precision in operations.
Frequency Options: Select from either 50Hz or 60Hz to suit your system's requirements.
Phases: Available in Three-phase or single-phase configurations to match your operational needs.
Connection Symbol: Standard configurations include Dyn11, Yyn0, with customization available upon request.
Short-circuit Impedance: Features Standard Impedance for consistent and dependable performance.
Operational Conditions: Designed to function optimally at altitudes not exceeding 1000m, with ambient temperatures not surpassing 40°C.
For deviations from standard conditions, necessary parameter adjustments will be implemented, strictly adhering to standard guidelines.
The fully sealed oil-immersed power transformer, an innovation by Chaotai Power, excels with its exceptionally low energy loss, silent operation, and superior efficiency. It offers an impressive energy-saving solution that significantly diminishes pollution.
In contrast to conventional oil-immersed transformers, this fully sealed design eliminates the need for an oil conservator. It expertly handles oil volume changes through the elastic prowess of the corrugated oil tank sheet, keeping the transformer insulated from air. This critical feature not only prevents oil deterioration and delays insulation aging but also significantly enhances reliability, eliminating 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 technological prowess within the ever-evolving realm of electrical integration. As a leading high-tech enterprise, we take great pride in our elite R&D, production, and service teams, fortified by over 15 years of invaluable industry experience. Our steadfast commitment to achieving unmatched excellence sets us apart as a pioneer of innovation, consistently pushing the boundaries of what's possible.
Our expansive and diverse array of products boasts cutting-edge innovations, including high-voltage solid-state soft starters, sophisticated capacitor cabinets, advanced high and low voltage switchgear, gas-insulated switchgear, and comprehensive substations. These remarkable products have become indispensable across a multitude of sectors, including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their versatility extends to both commercial and residential applications, making us proud to be at the forefront of empowering the future with our revolutionary solutions.
Rooted in an unwavering philosophy of relentless technological progression and 'smart manufacturing,' we are dedicated to fostering a culture of excellence by integrating top-tier technical expertise. This strategic focus amplifies our core strengths, ensuring we consistently deliver unparalleled service value to our clients. Our remarkable journey from inception to industry leadership is a testament to our ethos: steadfast dedication to innovation excellence. Our business strategy is firmly grounded in innovation, with unyielding commitment to quality as our foundation for survival, market reputation as our pathway to advancement, and management efficiency as our driver of profitability. We are devoted to harnessing 'technology as our guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision aims to elevate our market competitiveness, serving China's electric power, grid transmission, and distribution sectors with aspirations reaching extraordinary heights. Integrity, unmatched quality, exceptional service, and ultimate customer satisfaction form the very core of our values. We are in relentless pursuit of excellence, continuously innovating to forge a brand synonymous with trust. The appreciation of our customers fuels our ambition, and we extend our heartfelt gratitude to our loyal customers, both new and long-standing. We warmly invite you to join us on a shared journey with Senhang Technology towards a brighter and promising 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.