Product Description



Oil Immersed Series Transformer:
Introducing the extraordinary S11-M series, meticulously engineered by Zhejiang Chaotai Complete Equipment Co., Ltd., this oil-immersed power transformer embodies cutting-edge design and functionality. Its remarkable features include ultra-low energy consumption, minimal operational noise, and exceptional efficiency, making it a leading choice in energy solutions. Notably, it significantly reduces environmental impact. Unlike traditional models, this advanced transformer eliminates the need for an oil conservator through its innovative use of a corrugated oil tank, which dynamically adapts to oil volume changes. This design ensures an airtight seal, preventing oil degradation and slowing insulation aging, thereby greatly enhancing operational reliability and eliminating routine maintenance demands.
1. Power Capacity: Offers an impressive range from 25-2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and is customizable to align precisely with customer needs 2. Voltage Level: Available at diverse levels including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Choose between Off-circuit or On-load options for tailored performance
4. Tapping Range: Versatile configurations include ±5%, 2x2.5%, or ±4x2.5% adjustments
5. Frequency: Options include both 50Hz and 60Hz to suit varied requirements
6. Phases: Available in both Three-phase and single-phase configurations to meet different operational needs
7. Connection Symbol: Offered in configurations such as Dyn11, Yyn0, with extensive customization options available to cater to specific needs
8. Short-circuit Impedance: Engineered with Standard Impedance to ensure optimal performance and safety
9. Operational Conditions: Perfectly suited for altitudes up to 1000m and ambient temperatures below 40°C. Should actual conditions deviate, parameters will be adjusted in line with industry norms.
All necessary adjustments will strictly adhere to rigorous industry standards, ensuring consistent performance.
Power Capacity: Offering a broad range from 25-2500KVA, tailored to meet diverse energy demands
Voltage Levels: Comprehensive range spanning 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Available in both Off-circuit and On-load options, providing flexible regulation to suit different applications
Tapping Range: Offers configurations such as ±5%, ±2x2.5%, ±4x2.5% to ensure precise adjustments.
Frequency Options: Available in modes of 50Hz or 60Hz, catering to various operational environments
Phases: Choose from Three-phase or single-phase options, providing versatility for diverse applications
Connection Symbol: Configurable as Dyn11, Yyn0, with the ability to customize upon request to fit specific needs
Short-circuit Impedance: Expertly engineered with Standard Impedance to maintain safety and reliability
Operational Conditions: Designed for altitudes not exceeding 1000m, and ambient temperatures capped at 40°C to ensure optimal performance
In scenarios where conditions vary, we will execute necessary parameter adjustments, strictly adhering to industry guidelines to ensure reliable performance.
This fully sealed oil-immersed power transformer is an innovation marvel from Chaotai Power, designed for minimal energy loss, nearly silent operation, and unparalleled efficiency. As a top-tier energy-saving solution, it significantly cuts pollution.
Unlike traditional oil-immersed transformers, this fully sealed design dispenses with an oil conservator. It skillfully manages oil volume variations through the flexible corrugated oil tank sheet, ensuring the transformer remains isolated from air. This crucial feature not only prevents oil degradation and insulation aging but also enhances reliability and eliminates the need for routine maintenance.
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 visionary technological advancement and trailblazing innovation within the domain of electrical integration. As a prestigious high-tech enterprise, we are celebrated for our robust and dedicated teams specializing in research and development, production, and service. Our company is bolstered by an extraordinary legacy of over 15 years of invaluable industry experience. This steadfast dedication to excellence highlights our role as an innovation leader, consistently setting and exceeding industry benchmarks.
Our comprehensive and state-of-the-art product portfolio boasts pioneering solutions including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These pivotal products serve as the backbone for a myriad of industries such as energy, chemical sectors, metal smelting, electric power grids, and industrial manufacturing. Furthermore, our reach extends into academia, healthcare, municipal commerce, water management, hydropower, and road traffic, impacting both commercial and residential applications. We proudly empower the future with our transformative solutions, making a profound impact across these crucial sectors.
Anchored in a philosophy of relentless technological advancement and 'smart manufacturing,' we are resolute in cultivating a culture of excellence by integrating elite technical talents and forward-thinking strategies. This strategic dedication enhances our core competencies, ensuring the delivery of unparalleled service value to our clients. Our growth narrative is a testament to our core values: evolving from modest beginnings to industry leadership through steadfast dedication and innovation. Our business strategy remains steadfastly focused on quality as the cornerstone of survival, market reputation as the pathway to development, and management efficiency as the key to profitability. We pledge to leverage 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the foundational pillars of our quality and talent management initiatives. Our strategic vision seeks to amplify our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that aim higher, reach further, and achieve more. Integrity, unmatched quality, extraordinary service, and customer satisfaction are at the core of our values. Our relentless quest for excellence drives us to perpetually innovate, establishing our brand as synonymous with trust. The valued acknowledgment from our customers fuels our ambition. We extend heartfelt gratitude to our loyal customers, both new and longstanding, warmly inviting you to join Zhejiang Chaotai on a shared journey towards a brighter tomorrow.
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.