Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer from Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer is meticulously crafted to deliver remarkably low energy loss, whisper-quiet operation, and unparalleled efficiency, making it a leader in energy conservation. It significantly reduces pollution and minimizes environmental impact. Unlike traditional models, this innovative transformer does away with the need for an oil conservator. The intelligent elasticity of its corrugated oil tank autonomously manages oil volume changes, ensuring a perfectly sealed environment that protects against air exposure. This feature not only prevents oil degradation but also extends the insulation lifespan and enhances operational reliability, all without the need for routine maintenance during normal use.
1. Power Capacity: Offering a broad range from 25-2500KVA, with voltage options of 24KV, 30KV, 33KV, 35KV, 36KV, and further customization to suit specific customer requirements. 2. Voltage Level: Available options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Provides both Off-circuit and On-load options for versatile applications.
4. Tapping Range: Customizable selections include ±5%, 2x2.5%, ±4x2.5%
5. Frequency: Options available for both 50Hz and 60Hz to meet diverse needs.
6. Phases: Available in versatile Three-phase or single-phase configurations.
7. Connection Symbol: Offers Dyn11, Yyn0, or fully customizable configurations to precisely fit your specifications.
8. Short-circuit Impedance: Comes equipped with Standard Impedance.
9. Operational Conditions: Designed for optimal performance at altitudes not exceeding 1000m and ambient temperatures below 40°C. If conditions vary, parameter adjustments will be made following standard protocols.
All modifications adhere strictly to industry standards, ensuring reliability at every step.
Power Capacity: Spans a comprehensive range of 25-2500KVA.
Voltage Levels: Available options include 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, providing unmatched flexibility.
Voltage Level Overview:
Type of Voltage Regulation: Tailored options include Off-circuit or On-load, ensuring adaptability to various applications.
Tapping Range: Options span ±5%, ±2x2.5%, ±4x2.5% for precise control.
Frequency Options: Choose between 50Hz or 60Hz for optimal performance.
Phases: Available in adaptable Three-phase or single-phase configurations.
Connection Symbol: Configurable as Dyn11, Yyn0, or tailored to meet specific requirements on request.
Short-circuit Impedance: Equipped with Standard Impedance for robust performance.
Operational Conditions: Engineered for seamless operation at altitudes up to 1000m, with temperatures up to 40°C.
In cases where conditions exceed the standard parameters, adjustments will be conducted in accordance with established guidelines to ensure optimal functionality.
The fully sealed oil-immersed power transformer by Chaotai Power exemplifies innovation with its low energy loss, silent operation, and superior efficiency. It is an exceptional energy-saving solution, significantly reducing pollution and environmental impact.
This fully sealed design revolutionizes traditional transformers by eliminating the need for an oil conservator. It adeptly manages oil volume changes through the elasticity of the corrugated oil tank sheet, ensuring air insulation and preventing oil deterioration. This critical feature extends insulation longevity and boosts reliability, rendering regular maintenance unnecessary.
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 in the rapidly evolving realm of electrical integration. As a distinguished high-tech enterprise, we proudly present a team of highly skilled R&D professionals, production experts, and service specialists, all fortified by over 15 years of invaluable industry experience. Our unwavering dedication to achieving extraordinary excellence sets us apart as pioneers of innovation.
Our expansive and varied product portfolio is a testament to our commitment to cutting-edge innovation. It includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These extraordinary products have become indispensable in a wide array of industries, such as energy, chemical sectors, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. They extend their versatility to both commercial and residential applications. We take immense pride in empowering the future with our revolutionary solutions.
Deeply rooted in a philosophy of relentless technological advancement and 'smart manufacturing,' we are wholeheartedly committed to cultivating a culture of excellence through the integration of top-tier technical talents. This strategic approach enhances our core strengths, ensuring we consistently deliver unparalleled service value to our clients. Our remarkable growth journey is a testament to our ethos: evolving from inception to industry leadership through unwavering dedication. Anchored in innovation, our business strategy emphasizes quality as the foundation of our survival, market reputation as the key to development, and management efficiency as the engine of profitability. We are dedicated to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management initiatives. Our strategic vision is to amplify our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations reaching new heights. Integrity, unmatched quality, exceptional service, and customer satisfaction form the core of our values. We relentlessly pursue excellence, continuously innovating to establish a brand synonymous with trust. The appreciation of our customers fuels our ambition. We express our deepest gratitude to our loyal customers, both new and longstanding, and warmly invite you to embark on a shared journey with Senhang Technology 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.