Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, crafted with precision by Zhejiang Chaotai Complete Equipment Co., Ltd. This remarkable transformer is celebrated for its significantly reduced energy loss, whisper-quiet operation, and unparalleled efficiency. It embodies the pinnacle of energy conservation, substantially lowering pollution and minimizing environmental footprint. Unlike traditional oil-immersed transformers, this state-of-the-art model eliminates the necessity for an oil conservator. Its ingeniously crafted corrugated oil tank deftly self-regulates to adapt to oil volume changes, ensuring an impeccably sealed environment that shields the transformer from atmospheric exposure. This forward-thinking feature effectively prevents oil degradation, substantially extends the lifespan of insulation materials, and dramatically improves operational reliability—all while requiring no regular maintenance under standard conditions.
1. Power Capacity: With a range from 25-2500KVA and versatile options like 24KV, 30KV, 33KV, 35KV, 36KV, alongside tailor-made configurations to meet specific customer demands. 2. Voltage Level: Available options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Features both Off-circuit and On-load options for adaptive functionality.
4. Tapping Range: Offers a spectrum of selections such as ±5%, 2x2.5%, or ±4x2.5% to cater to diverse power requirements.
5. Frequency: Available in both 50Hz and 60Hz, ensuring seamless compatibility with regional standards.
6. Phases: Available in both Three-phase and single-phase designs to suit varied applications.
7. Connection Symbol: Select from standard configurations like Dyn11, Yyn0, or easily tailor to your precise needs.
8. Short-circuit Impedance: Engineered with Standard Impedance, ensuring consistent and reliable performance.
9. Operational Conditions: Expertly designed for altitudes up to 1000m and ambient temperatures below 40°C. If these conditions vary, parameters will be recalibrated according to standard protocols.
All modifications strictly adhere to industry standards, ensuring supreme performance and reliability.
Power Capacity: Offers a broad range from 25-2500KVA to address diverse energy demands effectively.
Voltage Levels: Spanning 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, providing extensive adaptability and choice.
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit and On-load variants, granting flexible control options.
Tapping Range: Offers configurations such as ±5%, ±2x2.5%, ±4x2.5% to meet specific requirements effortlessly.
Frequency Options: Choose between 50Hz or 60Hz to align perfectly with local standards.
Phases: Available in both Three-phase and single-phase configurations to cater to multiple applications seamlessly.
Connection Symbol: Standard selections include Dyn11, Yyn0, with fully customizable configurations readily available to meet unique preferences.
Short-circuit Impedance: Equipped with Standard Impedance for assured, dependable operation and longevity.
Operational Conditions: Designed for optimal performance at altitudes not exceeding 1000m and temperatures below 40°C.
Should operational conditions vary, suitable parameter adjustments will be conducted in compliance with standard guidelines, ensuring continued excellence.
The fully sealed oil-immersed power transformer, a testament to Chaotai Power's revolutionary innovation, excels with exceptionally low energy loss, whisper-quiet operation, and top-tier efficiency. It stands as a formidable energy-saving solution that significantly reduces pollution and enhances 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. is a beacon of innovation and technological mastery in the dynamic realm of electrical integration. Celebrated as a high-tech enterprise, our esteemed team brings over 15 years of unmatched industry experience, positioning us at the forefront of research, development, production, and service. Our steadfast dedication to groundbreaking innovation distinguishes us as trailblazers, ever-pushing the limits of excellence.
Our extensive product portfolio stands as a testament to our advanced innovations and cutting-edge solutions. We provide high-voltage solid-state soft starters, capacitor cabinets, a spectrum of high and low voltage switchgear, state-of-the-art gas-insulated switchgear, and sophisticated substations. These remarkable products are essential across various sectors, including energy, chemical industries, metal smelting, electric grids, industrial production, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Catering to both commercial enterprises and residential requirements, we empower the future with our pioneering solutions.
Guided by our philosophy of 'smart manufacturing' and relentless technological progression, we foster a culture of excellence. By assimilating top-tier technical talent, we bolster our core capabilities, consistently delivering exceptional value to our clients. Our extraordinary growth journey epitomizes our ethos of transforming inception into industry leadership through unwavering commitment. Innovation is the cornerstone of our strategy, with uncompromising quality as the foundation of our longevity, market reputation as our growth pathway, and management efficiency as the engine of profitability. Our commitment to 'technology as the guide, standardized management, superior quality, and customer satisfaction' represents the pillars of our quality and talent management framework. We aim to enhance market competitiveness, serving China's electric power and grid sectors with visionary ambition. Integrity, outstanding quality, exceptional service, and customer satisfaction form the essence of our core values. We pursue excellence, consistently innovating to build a brand of trustworthiness. Our customers' appreciation inspires our ambitions, and we extend heartfelt gratitude to our loyal patrons, both new and longstanding. Embark with us and Senhang Technology on a shared journey 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.