Product Description



Oil Immersed Series Transformer: A pinnacle of engineering marvels, integrating cutting-edge technology with reliable performance for transformative energy solutions.
Introducing the revolutionary S11-M series fully sealed oil-immersed power transformer, a crowning achievement by Zhejiang Chaotai Complete Equipment Co., Ltd. This remarkable transformer sets new standards with its impressively low energy loss, silent operation, and unrivaled efficiency. It epitomizes energy conservation, drastically reducing pollution and lessening environmental impact. Unlike conventional oil-immersed transformers, this pioneering model eliminates the need for an oil conservator. The intelligent design of the corrugated oil tank allows it to autonomously adapt to oil volume changes, maintaining a perfectly sealed environment that insulates the transformer from air. This innovative feature not only prevents oil degradation but also significantly extends insulation lifespan and enhances operational reliability, all while eliminating the need for routine maintenance during normal use.
1. Power Capacity: Offering a versatile range from 25-2500KVA, with customized options for 24KV, 30KV, 33KV, 35KV, 36KV, tailored to meet unique customer specifications. 2. Voltage Level: Versatile voltage options available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, accommodating diverse application requirements. 3. Type of Voltage Regulation: Provides both Off-circuit and On-load options for enhanced adaptability.
4. Tapping Range: Offering flexible choices including ±5%, 2x2.5%, ±4x2.5% to meet diverse electrical needs.
5. Frequency: Available in both 50Hz and 60Hz options, ensuring compatibility with global standards.
6. Phases: Configurations available in Three-phase or single-phase to suit varied operational demands.
7. Connection Symbol: Available as Dyn11, Yyn0, or can be fully customized to precisely fit your technical requirements.
8. Short-circuit Impedance: Equipped with Standard Impedance, providing consistent and reliable performance.
9. Operational Conditions: Engineered for altitudes up to 1000m and ambient temperatures below 40°C. Should these parameters be exceeded, necessary adjustments will be made in accordance with established protocols.
All adjustments will be meticulously made following industry standards, ensuring optimal performance and reliability.
Power Capacity: Flexibility in power solutions ranging from 25-2500KVA to meet varied energy requirements.
Voltage Levels: Diverse selection available, including 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, to meet specific application demands.
Voltage Level Overview: A comprehensive guide to our diverse voltage offerings, engineered for precision.
Type of Voltage Regulation: Choose from Off-circuit or On-load options, tailored for maximum flexibility and control.
Tapping Range: Versatile options such as ±5%, ±2x2.5%, ±4x2.5% provide adaptability for various electrical configurations.
Frequency Options: Select between 50Hz or 60Hz, ensuring seamless compatibility with your operational needs.
Phases: Tailored phase configurations in Three-phase or single-phase options for diverse application requirements.
Connection Symbol: Customizable options including Dyn11, Yyn0, crafted to align with specific project needs.
Short-circuit Impedance: Integrated with Standard Impedance, guaranteeing stability and resilience in performance.
Operational Conditions: Ideally suited for altitudes not exceeding 1000m, with ambient temperatures up to 40°C, ensuring optimal functionality. Adjustments available as needed, following standard guidelines.
Should operational conditions vary from the norm, precise parameter adjustments will be executed, ensuring adherence to standard protocols for maximum efficiency.
The fully sealed oil-immersed power transformer from Chaotai Power is a landmark innovation, boasting remarkably low energy loss, silent operation, and exceptional efficiency. It represents an ideal energy-saving solution, remarkably reducing pollution and enhancing sustainability.
In contrast to traditional oil-immersed transformers, this fully sealed design eliminates the requirement for an oil conservator. It adeptly manages oil volume fluctuations through the elastic capabilities of the corrugated oil tank sheet, ensuring complete insulation from air exposure. This vital feature not only prevents oil deterioration and extends insulation lifespan, but also significantly boosts reliability, rendering regular maintenance unnecessary.
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 technological prowess and innovation in the rapidly evolving world of electrical integration. As a distinguished high-tech enterprise, we pride ourselves on a team that embodies expertise, with a rich legacy of over 15 years in the industry. This legacy is a testament to our relentless pursuit of excellence and a commitment to setting new benchmarks in innovation.
Our diverse and cutting-edge product portfolio is a testament to our commitment to innovation, featuring groundbreaking solutions such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These products are indispensable across a myriad of sectors, including the energy sector, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic, with applications that span both commercial and residential landscapes. We take immense pride in our role as pioneers, fueling the future with our revolutionary solutions.
Guided by a philosophy centered on relentless technological advancement and 'smart manufacturing,' we are steadfast in our dedication to fostering a culture of excellence through the seamless integration of elite technical talent. This strategic alignment enhances our core competencies, ensuring we consistently deliver unparalleled service value to our clients. Our extraordinary journey from foundational beginnings to industry leadership is a testament to our ethos of dedication. Our business strategy, firmly rooted in innovation, prioritizes quality as the foundation of survival, market reputation as the catalyst for development, and management efficiency as the engine of profitability. We are resolute in leveraging 'technology as our guide, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management initiatives. Our strategic vision is to bolster market competitiveness, particularly in China's electric power and grid transmission and distribution sectors, with aspirations that continually soar to new heights. Core values of integrity, unmatched quality, exceptional service, and unwavering customer satisfaction drive our pursuit of excellence. We are committed to constant innovation to forge a brand synonymous with trust. The appreciation of our customers is the driving force behind our ambitions. We extend our heartfelt gratitude to our loyal customers, both new and longstanding, and warmly invite you to join us on our shared journey with Senhang Technology towards an even 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.