Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, a marvel of engineering by Zhejiang Chaotai Complete Equipment Co., Ltd. This extraordinary transformer is celebrated for its remarkable low energy loss, whisper-quiet operation, and unparalleled efficiency. As a beacon of energy conservation, it substantially lowers pollution levels and minimizes its environmental impact. Diverging from conventional oil-immersed transformers, this state-of-the-art model eliminates the necessity for an oil conservator. The cleverly crafted corrugated oil tank expertly self-regulates to manage oil volume variations, maintaining a perfectly sealed environment that protects the transformer from air exposure. This pioneering feature effectively prevents oil degradation, greatly extending the lifespan of insulation materials, and significantly boosting operational reliability—all while requiring no routine maintenance under standard conditions.
1. Power Capacity: Offering a wide range from 25-2500KVA, with flexible options such as 24KV, 30KV, 33KV, 35KV, 36KV, and customizable configurations to meet specific customer needs. 2. Voltage Level: Available in diverse levels such as 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Features both Off-circuit and On-load options for versatile functionality.
4. Tapping Range: Offers a variety of choices like ±5%, 2x2.5%, or ±4x2.5% to meet various power demands.
5. Frequency: Available in both 50Hz and 60Hz, ensuring it meets regional requirements seamlessly.
6. Phases: Available in both Three-phase and single-phase configurations to accommodate different application needs.
7. Connection Symbol: Select from standard configurations like Dyn11, Yyn0, or easily customize to your precise specifications.
8. Short-circuit Impedance: Designed with Standard Impedance, ensuring reliable and consistent performance.
9. Operational Conditions: Expertly crafted for altitudes up to 1000m and ambient temperatures below 40°C. Should there be variations in these conditions, parameters will be adjusted according to standard protocols.
All modifications strictly adhere to industry standards, ensuring optimal performance and reliability.
Power Capacity: Ranges from 25-2500KVA to fulfill diverse energy requirements.
Voltage Levels: Covering 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, offering extensive adaptability.
Voltage Level Overview:
Type of Voltage Regulation: Available in both Off-circuit and On-load variants, offering flexible control options.
Tapping Range: Provides configurations such as ±5%, ±2x2.5%, ±4x2.5% to suit specific customer needs.
Frequency Options: Choose between 50Hz or 60Hz to align with local standards effortlessly.
Phases: Offered in both Three-phase and single-phase versions to cater to various applications.
Connection Symbol: Choose from standard selections like Dyn11, Yyn0, with fully customizable options available.
Short-circuit Impedance: Equipped with Standard Impedance for assured and reliable operation.
Operational Conditions: Engineered for optimal performance at altitudes up to 1000m and temperatures below 40°C.
Should operational conditions differ, suitable parameter adjustments will be made in compliance with industry standard guidelines.
The fully sealed oil-immersed power transformer, a testament to Chaotai Power's pioneering innovation, excels with impressively low energy loss, quiet operation, and top-tier efficiency. It stands as a powerful and energy-efficient solution that significantly reduces pollution.
5f038547
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 innovation and technological prowess in the ever-evolving field of electrical integration. Celebrated as a high-tech enterprise, our exceptional team possesses over 15 years of unmatched industry expertise, positioning us as leaders in research, development, production, and service. Our steadfast commitment to groundbreaking innovation distinguishes us as pioneers, relentlessly advancing the frontiers of excellence.
Our diverse product portfolio is a testament to our cutting-edge advancements. We proudly offer high-voltage solid-state soft starters, capacitor cabinets, a comprehensive range of high and low voltage switchgear, state-of-the-art gas-insulated switchgear, and advanced substations. These outstanding products play a critical role across a wide array of 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 needs, we are driving the future forward with our groundbreaking solutions.
Driven by our philosophy of 'smart manufacturing' and continuous technological progress, we nurture a culture of excellence. By integrating elite technical talents, we strengthen our core capabilities, consistently providing extraordinary value to our clients. Our remarkable growth story embodies our ethos of turning inception into industry leadership through unwavering dedication. Innovation is the cornerstone of our strategy, with quality serving as the foundation of our longevity, market reputation as our growth trajectory, and management efficiency as the catalyst for profitability. Our adherence to 'technology as the guide, standardized management, superior quality, and customer satisfaction' embodies the pillars of our quality and talent management. We strive to heighten market competitiveness, serving China's electric power and grid sectors with visionary ambition. Integrity, unrivaled quality, exceptional service, and customer satisfaction constitute the essence of our values. We endeavor for excellence, continually innovating to forge a brand synonymous with trust. Our customers' appreciation propels our aspirations, and we extend heartfelt thanks to our loyal patrons, both new and longstanding. Embark on a collaborative 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.