Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, crafted with precision and innovation by Zhejiang Chaotai Complete Equipment Co., Ltd. This remarkable transformer distinguishes itself with its exceptionally low energy loss, whisper-quiet performance, and unparalleled efficiency. As a beacon of energy conservation, it significantly cuts pollution and reduces environmental footprints. Unlike traditional oil-immersed transformers, this state-of-the-art model eliminates the need for an oil conservator. Thanks to the ingenious design of the corrugated oil tank, it self-regulates and compensates for oil volume changes, ensuring a perfectly sealed environment that shields the transformer from air exposure. This pioneering feature effectively prevents oil degradation, greatly extends the life of insulation materials, and significantly boosts operational reliability—all while requiring no routine maintenance under normal conditions.
1. Power Capacity: Offering a vast range from 25-2500KVA with flexible options of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable configurations tailored to specific customer needs. 2. Voltage Level: Available in an array of 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Provides both Off-circuit and On-load options for versatile functionality, ensuring adaptability to any application.
4. Tapping Range: Offers diverse options like ±5%, 2x2.5%, or ±4x2.5% to meet various power requirements.
5. Frequency: Available in both 50Hz and 60Hz, catering to different regional specifications and requirements.
6. Phases: Available in both Three-phase and single-phase configurations, providing solutions for various applications.
7. Connection Symbol: Select from standard options like Dyn11, Yyn0, or customize to meet your exact specifications effortlessly.
8. Short-circuit Impedance: Equipped with Standard Impedance for reliable and consistent performance.
9. Operational Conditions: Expertly designed for optimal performance at altitudes up to 1000m and ambient temperatures under 40°C. For conditions beyond these parameters, adjustments will be made according to standard protocols.
All modifications will strictly conform to industry standards, ensuring optimal and reliable performance.
Power Capacity: Ranges from 25-2500KVA to cater to diverse energy demands, ensuring unmatched versatility.
Voltage Levels: Available in 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, offering extensive adaptability to meet various client needs and applications.
Voltage Level Overview:
Type of Voltage Regulation: Offered in both Off-circuit and On-load variants, providing adaptable control for any situation.
Tapping Range: Provides a variety of options like ±5%, ±2x2.5%, ±4x2.5% to tailor solutions to specific requirements.
Frequency Options: Choose from 50Hz or 60Hz to meet diverse local standards and requirements.
Phases: Available in both Three-phase and single-phase configurations, offering versatile solutions for various applications.
Connection Symbol: Choose from standard offerings like Dyn11, Yyn0, with the flexibility for fully customizable configurations to suit your needs.
Short-circuit Impedance: Features Standard Impedance, ensuring dependable and stable operation.
Operational Conditions: Designed to function optimally at altitudes not exceeding 1000m and temperatures below 40°C, with adaptability for varied conditions.
Should operational conditions deviate, appropriate parameter adjustments will be made in accordance with standard guidelines to ensure continued performance.
The fully sealed oil-immersed power transformer, an epitome of Chaotai Power's innovative prowess, thrives with incredibly low energy loss, silent operations, and superior efficiency. It is a powerful energy-saving device that substantially minimizes pollution, setting a new standard in eco-friendly technology.
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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 shining beacon of technological brilliance in the dynamic world of electrical integration. As a celebrated high-tech enterprise, we boast an elite team dedicated to research, development, production, and service, fortified by over 15 years of rich industry expertise. Our unwavering commitment to unparalleled excellence elevates us as trailblazers in innovation.
Our extensive and diverse product offerings showcase groundbreaking innovations such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These remarkable products are vital across a vast array of sectors including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their widespread applicability extends to both commercial and residential domains. We proudly propel the future with our transformative solutions.
Fueled by a philosophy of relentless technological advancement and 'smart manufacturing,' we are earnestly committed to cultivating a culture of excellence by integrating top-tier technical talents. This strategic approach enhances our core capabilities, ensuring we consistently deliver extraordinary service value to our clients. Our remarkable growth journey epitomizes our ethos: evolving from inception to industry leadership through steadfast dedication. Our business strategy is anchored in innovation, with an unwavering commitment to quality as the cornerstone of our survival, market reputation as the bedrock of our growth, and management efficiency as the impetus for profitability. We are dedicated to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management endeavors. Our strategic vision is to elevate our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations to reach new heights. Integrity, unmatched quality, exceptional service, and customer satisfaction are at the core of our values. We relentlessly pursue excellence, continually innovating to establish a brand that epitomizes trust. The appreciation from our customers fuels our ambition. We sincerely express our deepest gratitude to our loyal customers, both new and longstanding, and warmly invite you to join us in a shared journey with Senhang Technology 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.