Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil immersed power transformer meticulously developed by Chaotai Power. This cutting-edge transformer boasts superior attributes such as low loss, minimal noise, and exceptional efficiency, delivering remarkable energy-saving benefits while minimizing environmental impact. Unlike conventional oil immersed transformers, this advanced model eliminates the need for an oil conservator. The oil volume adjustments occur seamlessly through the elasticity of the corrugated sheet in the oil tank, ensuring the transformer remains isolated from air exposure. This design innovation not only prevents and mitigates the deterioration of the oil and insulation aging but also significantly enhances operational reliability, eliminating the need for maintenance during standard operation.
1. Power Capacity: 25-2500KVA, catering to voltage levels of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable options as per customer requirements. 2. Voltage Level: Ranging across 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Offers versatile options with Off-circuit or On-load settings.
4. Tapping Range: Features flexibility with ±5%, and increments of ±2x2.5% or ±4x2.5%.
5. Frequency: Accommodates both 50Hz and 60Hz as needed.
6. Phases: Available in both three-phase and single-phase configurations to suit diverse applications.
7. Connection Symbol: Follows Dyn11, Yyn0, or customizable as required for specific applications.
8. Short-circuit Impedance: Conforms to standard impedance specifications, ensuring reliability and safety.
9. Altitude: Designed for optimal performance at altitudes not exceeding 1000m, with ambient temperatures remaining below 40°C. If environmental conditions deviate, parameters will be adjusted accordingly.
We adhere to standard guidelines for any necessary parameter modulation to ensure optimal performance under varying conditions.
Power Capacity: From 25KVA up to an impressive 2500KVA, catering to a wide range of energy solutions.
Voltage Levels: Offers flexibility across multiple options - IOkV, 13.8kV, 15kV, 17.5kV, 20kV, 22kV, 24kV, 30kV, 33kV, 35kV, and 36kV.
Voltage Level: Available from 10KV to 35KV, meeting diverse electrical needs.
Type of Voltage Regulation: Choose between Off-circuit or On-load, providing adaptability for different operational demands.
Tapping Range: Offers precision with options such as ±5%, ±2x2.5%, and ±4x2.5% for tailored electrical performance.
Frequency: Supports both 50Hz and 60Hz frequencies, accommodating global standards.
Phases: Options available for both three-phase and single-phase systems, enhancing versatility.
Connection Symbol: Flexible customization with Dyn11, Yyn0, or as specifically requested for specialized requirements.
Short-circuit Impedance: Built to conform with standard impedance, ensuring consistent and safe operational performance.
Altitude and Temperature: Suitable for installations up to 1000m altitude with ambient temperatures not exceeding 40°C, adaptable to varying environmental conditions.
In cases where standard conditions are not met, we ensure compliance and optimal performance through parameter adjustments based on standard guidelines.
The fully sealed oil immersed power transformer by Chaotai Power exemplifies excellence with its low loss, minimal noise, and high efficiency. This results in significant energy savings and reduced environmental impact.
Compared to traditional oil immersed transformers, this innovative, fully sealed transformer eliminates the need for an oil conservator. The automatic adjustment of oil volume through the corrugated oil tank sheet's elasticity ensures isolation from air, preventing and slowing oil deterioration and insulation aging. This enhances reliability and eliminates the need for maintenance under normal operation.
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

Welcome to Zhejiang ChaoTai Complete Equipment Co., Ltd., a pioneering high-tech enterprise specializing in the extraordinary realm of electrical integration. With over 15 years of impeccable industry experience, our dynamic and professional teams in R&D, production, and service are devoted to pushing the boundaries of innovation.
Our illustrious product line features high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. Our cutting-edge solutions are making a significant impact across an array of sectors, including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, universities, and research institutions. We also extend our expertise to the medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower, road traffic, along with commercial and residential regions.
Dedicated to the philosophy of technological innovation and 'smart manufacturing,' Zhejiang ChaoTai Complete Equipment Co., Ltd. is on a relentless pursuit to elevate competitiveness by attracting highly skilled technical talents. Our mission is to offer unparalleled services to our clients, aspiring to set the benchmark in the industry. Since inception, we've been on a remarkable journey from inception to excellence, driven by a commitment to innovation and modernization. Our strategy is built on the pillars of quality for survival, market responsiveness, growth through reputation, and management-driven efficiency. Our commitment to 'technology as the guide, standardized management, excellent quality, and customer satisfaction' fuels our competitive edge, striving to meet ever-higher goals in China's power transmission and distribution landscape. With integrity as our foundation, unmatched quality as our priority, supreme service as our hallmark, and customer satisfaction as our eternal mission, we relentlessly pursue excellence and continuous innovation. Building a trusted brand is our steadfast goal, and your recognition propels us forward. We extend heartfelt gratitude to our loyal customers for their support, and invite you to join us at Senhang Technology in shaping a brighter 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.