Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, masterfully crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. With its pioneering design, this transformer epitomizes unparalleled energy efficiency, whisper-quiet performance, and significantly reduced energy waste. It sets new standards in eco-friendly technology, drastically cutting down on pollution and environmental footprint. This modern marvel stands apart by eliminating the traditional oil conservator, instead utilizing the innovative elasticity of the corrugated oil tank to autonomously manage oil volume fluctuations. This design ensures a hermetically sealed environment, protecting the transformer from air exposure and significantly extending the lifespan of its insulation. Additionally, this feature enhances operational dependability, all while removing the need for routine maintenance under normal operating conditions.
1. Power Capacity: Offers a range from 25-2500KVA, with customizable options for 24KV, 30KV, 33KV, 35KV, 36KV, tailored to meet specific client requirements 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Provides both Off-circuit and On-load options to suit varying needs
4. Tapping Range: Choose from ±5%, 2x2.5%, ±4x2.5% for optimal flexibility
5. Frequency: Available options include either 50Hz or 60Hz
6. Phases: Offered in both Three-phase or single-phase configurations for diverse applications
7. Connection Symbol: Options include Dyn11, Yyn0, or fully customizable to align with your specific needs
8. Short-circuit Impedance: Features standard impedance for reliable performance
9. Operational Conditions: Designed to function optimally at altitudes up to 1000m and temperatures below 40°C. Should these conditions vary, we will adjust parameters following standard protocols to ensure performance.
All adjustments will strictly adhere to industry standards, ensuring compliance and reliability.
Power Capacity: Available in a range from 25-2500KVA to suit a variety of power needs
Voltage Levels: A selection of 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV to meet diverse requirements
Voltage Level Overview:
Type of Voltage Regulation: Options include Off-circuit or On-load for flexible operational control
Tapping Range: Offers multiple options including ±5%, ±2x2.5%, ±4x2.5% for precise customization
Frequency Options: Choose between 50Hz or 60Hz to align with your power system needs
Phases: Available in either Three-phase or single-phase to match your electrical setup
Connection Symbol: Available as Dyn11, Yyn0, with customization available on request
Short-circuit Impedance: Comes with standard impedance for consistent and dependable performance
Operational Conditions: Engineered for altitudes not exceeding 1000m, and ambient temperatures under 40°C
Should environmental conditions deviate, we will implement necessary parameter adjustments, in full accordance with established guidelines.
The fully sealed oil-immersed power transformer, a pinnacle of innovation by Chaotai Power, offers exceptionally low energy loss, silent operation, and superior efficiency. It is an exemplary energy-saving solution, greatly reducing pollution.
Departing from traditional designs, this fully sealed transformer eliminates the oil conservator. It adeptly handles oil volume changes with the elastic capabilities of its corrugated oil tank, ensuring protection against air exposure. This crucial feature prevents oil degradation, extends insulation life, and greatly enhances reliability, all while negating 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 brilliance in the ever-evolving realm of electrical integration. Celebrated as a distinguished high-tech enterprise, we proudly present a team of highly adept professionals in R&D, production, and service, bolstered by an impressive tenure of over 15 years in the industry. Our unwavering dedication to setting new standards of excellence sets us apart as an innovator in the field.
Our expansive and versatile product line showcases cutting-edge creations, featuring high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These remarkable products have become indispensable in diverse industries, including energy, chemical sectors, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic, seamlessly extending their applications to both commercial and residential spheres. We take immense pride in empowering the future with our groundbreaking solutions, driving progress across multiple domains.
Grounded in a philosophy of relentless technological advancement and 'smart manufacturing,' we are dedicated to nurturing a culture of excellence through the integration of top-tier technical talents. This strategic approach bolsters our core strengths, ensuring we consistently deliver unparalleled service value to our clients. Our remarkable growth journey is a testament to our ethos: transforming from inception to industry leadership through unwavering dedication. Our business strategy is firmly rooted in innovation, with an unwavering commitment to quality as the foundation of our survival, market reputation as the path to development, and management efficiency as the catalyst for profitability. We are devoted to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management efforts. Our strategic vision is to enhance our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations of reaching unparalleled heights. Integrity, unmatched quality, exceptional service, and customer satisfaction form the essence of our values. We persistently strive for excellence, continuously innovating to establish a brand synonymous with trust. The appreciation of our customers propels 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.