Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil-immersed power transformer, a masterpiece developed by Chaotai Power. This transformer boasts remarkable advantages of low loss, minimal noise, and superior efficiency, translating to outstanding energy savings and reduced environmental impact. Unlike conventional oil-immersed transformers, this advanced model eliminates the need for an oil conservator. Its cutting-edge design incorporates a corrugated oil tank with elastic properties, allowing for automatic adjustment and compensation of oil volume changes. By isolating the transformer from the air, it significantly slows down oil deterioration and insulation aging, enhancing operational reliability and ensuring maintenance-free performance during standard operations.
1. Power Capacity: Ranging from 25 to 2500 KVA, accommodating voltage levels of 24KV, 30KV, 33KV, 35KV, 36KV and customizable to meet specific customer requirements. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Available in both Off-circuit and On-load configurations.
4. Tapping Range: Adjustable within ±5%, ±2x2.5%, and ±4x2.5% for versatile performance.
5. Frequency: Compatible with both 50Hz and 60Hz systems.
6. Phases: Offered in both three-phase and single-phase options.
7. Connection Symbol: Configurations include Dyn11 and Yyn0, with the flexibility for customization as requested.
8. Short-circuit Impedance: Engineered to meet standard impedance requirements for reliable operation.
9. Altitude: Suitable for environments not exceeding 1000m in altitude, with an ambient temperature threshold of 40°C. Should conditions deviate, we will tailor parameters to standards.
Comprehensive adjustments will be made in alignment with international standards to ensure optimal performance in varying conditions.
Power Capacity: Offering a versatile range from 25 KVA to an impressive 2500 KVA.
Voltage Level Options: Extensive offering including 10KV, 22KV, 20KV, 30KV, 33KV, 35KV, and 36KV, catering to diverse needs.
Voltage Level:
Type of Voltage Regulation: Choose between Off-circuit or On-load regulation modes.
Tapping Range: Flexible options at ±5%, ±2x2.5%, and ±4x2.5% to suit specific requirements.
Frequency: Designed to operate seamlessly at either 50Hz or 60Hz frequencies.
Phases: Available in both three-phase and single-phase versions for comprehensive integration.
Connection Symbol: Options include Dyn11 and Yyn0, with additional customization available upon request.
Short-circuit Impedance: Developed to adhere to standard impedance specifications for dependable functionality.
Environmental Suitability: Designed for altitudes up to 1000m, withstanding ambient temperatures up to 40°C.
Should conditions exceed these limits, parameter adjustments will be expertly made to comply with industry standards.
Chaotai Power's fully sealed oil-immersed power transformer is a game-changer in the industry, offering unparalleled benefits such as low loss, reduced noise, and high efficiency. It is engineered to deliver exceptional energy-saving performance while minimizing environmental impact.
A leap forward from standard oil-immersed transformers, our fully sealed model does away with the oil conservator altogether. The innovative design features a corrugated oil tank with elastic properties, facilitating automatic adjustment and compensation for oil volume changes. By isolating the transformer from air, it effectively prevents and decelerates oil deterioration and insulation aging, significantly boosting operational reliability and negating the need for maintenance under normal operational conditions.
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 in the realm of electrical integration. As a high-tech enterprise, we proudly pioneer advancements with a dedicated R&D, production, and service team, boasting over 15 years of profound industry expertise.
Our extensive range of cutting-edge products includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and state-of-the-art substations. Our solutions have become indispensable across diverse sectors, including energy and chemical industries, metal smelting, power grids, industrial manufacturing, academia, healthcare, municipal commerce, water conservancy, hydropower, road infrastructure, as well as commercial and residential domains.
Our unwavering commitment to technological innovation and the philosophy of 'smart manufacturing' fuels our progress. By integrating top-tier technical talents, we elevate our core competencies, offering unparalleled value to clients while sculpting the premier brand in our industry. Since inception, our evolution has been remarkable—from humble beginnings to a pinnacle of excellence. Innovation remains at our core as we embrace a modern business strategy focused on quality-driven survival, reputation-led growth, and efficient management. We stand devoted to our guiding principles: technology leadership, standardized management, superior quality, and unwavering customer satisfaction. These cornerstones empower us to enhance our competitive edge and contribute effectively to China's power transmission and distribution sector, with ambitious goals of swiftness, robustness, and excellence. Integrity is our foundation, quality is our mission, and exemplary service our supreme aspiration, ensuring perpetual customer satisfaction. Pursuing unparalleled excellence, relentless innovation, and cultivating a trustworthy brand are our steadfast objectives. Your support is our catalyst for success. To our valued patrons, both new and long-standing, we extend our heartfelt gratitude. Senhang Technology eagerly anticipates collaborating with you to foster a luminous future together.
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.