Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a state-of-the-art, fully sealed oil-immersed power transformer engineered by Chaotai Power. This high-performance transformer boasts unparalleled advantages including low energy loss, minimal noise output, and exceptional efficiency, all contributing to remarkable energy savings and reduced environmental impact. Unlike conventional oil-immersed transformers, our innovative design eliminates the need for an oil conservator. The adaptive oil volume change is seamlessly managed by the resilient corrugated sheets of the oil tank, effectively isolating the transformer from the air. This innovative feature significantly decelerates oil deterioration and insulation aging, thereby enhancing operational reliability and minimizing maintenance requirements during normal usage.
1. Power Capacity: Ranging from 25KVA to a robust 2500KVA, with voltage options including 24KV, 30KV, 33KV, 35KV, and 36KV. Custom configurations available as per client requirements. 2. Voltage Level: Diverse voltage options including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, and up to 22KV. 3. Voltage Regulation Type: Tailored solutions offering either Off-circuit or On-load voltage regulation.
4. Tapping Range: Flexible tapping options of ±5%, 2x2.5%, or ±4x2.5% to suit various application needs.
5. Frequency: Available in standard frequencies of 50Hz or 60Hz.
6. Phases: Configurable for both three-phase and single-phase systems.
7. Connection Symbol: Offering versatile connection symbols such as Dyn11 and Yyn0, with other options customizable upon request.
8. Short-Circuit Impedance: Engineered with standard impedance to ensure reliable performance.
9. Operating Conditions: Designed for altitudes not exceeding 1000m and ambient temperatures not surpassing 40°C. Should conditions vary, we offer parameter adjustments in accordance with industry standards.
Adapting to varying environmental conditions with precision, ensuring compliance with all standard specifications.
Power Capacity: Offering a wide range from 25KVA to a substantial 2500KVA, catering to diverse power demands.
Voltage Options: Encompassing various levels such as 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV, providing flexibility for different application needs.
Voltage Level: Comprehensive voltage levels are available to suit various technical requirements.
Voltage Regulation Type: Providing Off-circuit and On-load regulation options for optimal control.
Tapping Range: Customizable tapping range options of ±5%, ±2x2.5%, or ±4x2.5%, ensuring adaptability to different system requirements.
Frequency: Offering flexibility with both 50Hz and 60Hz frequency options.
Phases: Configurable for three-phase or single-phase systems, catering to diverse operational needs.
Connection Symbol: Available in standard configurations of Dyn11 and Yyn0, with further customization available upon request.
Short-Circuit Impedance: Designed with standard impedance to deliver consistent and reliable performance.
Operating Conditions: Suitable for altitudes up to 1000m and ambient temperatures up to 40°C, with options for adjustments based on environmental variations.
Parameter Modulations: Ensuring compliance with standards by adjusting parameters to meet unique environmental conditions.
The fully sealed oil-immersed power transformer by Chaotai Power is engineered for superior performance, with benefits including reduced energy loss, minimal noise levels, and heightened efficiency, all contributing to significant energy savings and pollution reduction.
Our advanced fully sealed transformer design eliminates the need for an oil conservator, and employs adaptive oil volume management through the elasticity of corrugated sheets in the oil tank. This innovation isolates the transformer from air, effectively slowing down oil degradation and insulation aging, thereby boosting operational reliability and reducing maintenance during standard 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

Zhejiang ChaoTai Complete Equipment Co., Ltd. is a pioneering high-tech enterprise rooted in the sophisticated domain of electrical integration. Our company boasts an illustrious professional R&D, production, and service team, enriched with over 15 glorious years of unparalleled industry expertise.
At the heart of our innovation are our premium products, which include high-voltage solid-state soft starters, advanced capacitor cabinets, state-of-the-art high and low voltage switchgear, cutting-edge gas-insulated switchgear, and robust substations. These products are the cornerstone of excellence across a multitude of sectors, including but not limited to, the dynamic energy and chemical industries, the intricate realm of metal smelting, expansive electric power grids, the industrious domain of industrial manufacturing, prestigious universities, pioneering research institutions, the advanced medical and pharmaceutical sectors, bustling municipal commerce, essential water conservancy and hydropower, intricate road traffic networks, and vibrant commercial and residential territories.
Firmly rooted in the ethos of technological innovation and the visionary philosophy of "smart manufacturing," we passionately recruit top-tier technical talents to holistically elevate our company's core strengths. Our mission is to deliver unparalleled value to our esteemed customers and to forge an indomitable brand that stands at the pinnacle of the industry. From inception, we have embarked on a remarkable journey of progress, evolving from inception to innovation, and from innovation to excellence. Our unwavering commitment to innovation propels us along a modern trajectory of business success, defined by uncompromising quality, market-oriented approaches, reputation-based development, and management-driven efficiency. We steadfastly pledge to follow the tenets of "technology as the guide, standardized management, impeccable quality, and consummate customer satisfaction" in our quality and technical talent stewardship. This strategy fortifies our market standing and accelerates our mission to serve China's transmission and distribution sectors with unprecedented speed, strength, and ambition. Integrity forms the bedrock of our ethos, quality is our unyielding pursuit, service is our noble promise, and achieving customer satisfaction is our eternal commitment. Our relentless pursuit of excellence, ceaseless innovation, and dedication to building a brand of unshakeable trust are our enduring goals. Your recognition fuels our journey. We express profound gratitude to both our new and longstanding customers for their unwavering support and cherished partnership. With immense anticipation, ChaoTai Complete Equipment Co., Ltd. stands ready to collaborate with you in crafting a future that shines ever brighter.
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.