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 exceptional transformer is synonymous with minimal energy loss, whisper-quiet operation, and unmatched efficiency. It serves as a beacon of sustainable energy solutions, significantly reducing pollution and environmental impact. In contrast to conventional oil-immersed transformers, this avant-garde model eradicates the need for an oil conservator, thanks to its ingenious corrugated oil tank design that autonomously adjusts and compensates for oil volume fluctuations. This ensures a flawlessly sealed environment, safeguarding the transformer from air exposure. This trailblazing feature effectively prevents oil degradation, dramatically extends the lifespan of insulation materials, and considerably enhances operational reliability—all while eliminating the need for routine maintenance under standard conditions.
1. Power Capacity: Ranges from 25-2500KVA, offering versatile options such as 24KV, 30KV, 33KV, 35KV, 36KV, along with customizable configurations tailored to specific customer needs. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, providing extensive adaptability for diverse applications. 3. Type of Voltage Regulation: Features both Off-circuit and On-load options for flexible functionality.
4. Tapping Range: Offers a selection of ±5%, ±2x2.5%, or ±4x2.5% to cater to a wide range of power needs with precision.
5. Frequency: Available in both 50Hz and 60Hz, accommodating distinct regional requirements and standards.
6. Phases: Offered in both Three-phase and single-phase configurations to suit a variety of application demands.
7. Connection Symbol: Options include Dyn11, Yyn0, or fully customizable to meet your specific design needs effortlessly.
8. Short-circuit Impedance: Comes with Standard Impedance for assured and reliable performance.
9. Operational Conditions: Expertly engineered to perform optimally at altitudes up to 1000m and ambient temperatures below 40°C. If these conditions vary, we will make necessary parameter adjustments as per standard protocols.
All modifications will strictly adhere to industry standards, guaranteeing optimal performance and reliability.
Power Capacity: Spans from 25-2500KVA to accommodate diverse energy requirements effectively.
Voltage Levels: Offered in 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, ensuring extensive adaptability across various applications.
Voltage Level Overview:
Type of Voltage Regulation: Available in both Off-circuit and On-load variants, offering adaptable control for varied operational needs.
Tapping Range: Provides flexible options like ±5%, ±2x2.5%, ±4x2.5% to precisely match specific operational requirements.
Frequency Options: Available in 50Hz or 60Hz, offering compliance with local and international standards.
Phases: Available in both Three-phase and single-phase configurations to meet diverse application scenarios.
Connection Symbol: Choose from standard options like Dyn11, Yyn0, with the possibility of full customization for precise requirements.
Short-circuit Impedance: Features Standard Impedance, ensuring dependable and stable operation.
Operational Conditions: Designed for optimal performance at altitudes not exceeding 1000m and temperatures below 40°C, ensuring reliability across various environments.
In cases of varied operational conditions, appropriate parameter adjustments will be implemented in alignment with standard guidelines to ensure consistent performance.
Embrace the fully sealed oil-immersed power transformer, a testament to Chaotai Power's innovative brilliance. Boasting incredibly low energy loss, silent operations, and superior efficiency, it serves as a highly effective energy-saving device that significantly reduces pollution, enhancing sustainability.
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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. pioneers in the realm of electrical integration with an impressive forte in technological innovation. As a distinguished high-tech enterprise, we are fortified by a select group of seasoned experts in research, development, production, and service, boasting over 15 years of invaluable industry expertise. Our unwavering dedication to achieving unparalleled excellence sets us apart as trailblazers in innovation.
Our extensive and versatile product lineup showcases state-of-the-art advancements, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These exemplary products are crucial across a wide spectrum of industries such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their versatility extends into both commercial and residential applications. By delivering cutting-edge solutions, we are proud to empower a brighter future.
Guided by an unwavering commitment to technological advancement and 'smart manufacturing,' we are devoted to fostering an ethos of excellence through the integration of premier technical expertise. This strategic emphasis magnifies our core strengths, ensuring that we continuously provide unmatched service value to our clients. Our remarkable growth journey exemplifies our philosophy: evolving from our origins to industry leadership through resolute dedication. Our business strategy is deeply rooted in innovation, with a resolute commitment to quality as the bedrock of our survival, market reputation as our pathway to growth, and management efficiency as the key driver for 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 pursuits. Our strategic vision aims to elevate our market competitiveness, catering to China's electric power and grid transmission and distribution sectors with ambitions that reach new horizons. Integrity, unmatched quality, exceptional service, and customer satisfaction are the essence of our values. We consistently strive for excellence, fostering innovation to forge a brand synonymous with trust. The gratitude from our customers fuels our drive. We extend our heartfelt thanks to our loyal customers, both new and enduring, and warmly invite you to embark on a shared journey with Senhang Technology towards a 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.