Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, crafted with precision and passion by Zhejiang Chaotai Complete Equipment Co., Ltd. Elevating industry standards, this extraordinary transformer boasts remarkable features including ultra-low energy consumption, serene noiseless operations, and unparalleled efficiency. It represents the pinnacle of sustainable energy solutions, dramatically reducing environmental pollution and ecological footprint. Departing from conventional oil-immersed transformers, this avant-garde model revolutionizes design by eliminating the oil conservator. Its advanced corrugated oil tank, endowed with elasticity, intuitively adjusts and balances oil volume fluctuations, ensuring an airtight seal that safeguards the transformer from atmospheric exposure. This game-changing feature not only thwarts oil degradation but also significantly extends the lifespan of insulation, enhancing operational reliability without requiring routine maintenance during standard usage.
1. Power Capacity: Tailored to your needs, ranging from 25-2500KVA, with options spanning 24KV, 30KV, 33KV, 35KV, 36KV, and beyond, fully customizable to meet your specific requirements. 2. Voltage Level: A versatile selection is available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Offering both Off-circuit and On-load configurations for optimal flexibility.
4. Tapping Range: Customize your experience with choices of ±5%, 2x2.5%, ±4x2.5% to suit your precise needs.
5. Frequency: Choose the perfect fit with options for either 50Hz or 60Hz, accommodating diverse power requirements.
6. Phases: Available in both Three-phase and single-phase configurations, tailor-made to fit your operational demands.
7. Connection Symbol: Dyn11, Yyn0—fully customizable to align with your unique specifications.
8. Short-circuit Impedance: Engineered to feature Standard Impedance, ensuring robust performance and reliability.
9. Operational Conditions: Expertly designed for altitudes not exceeding 1000m, with an ambient temperature threshold of 40°C. If these conditions are not met, we will initiate necessary parameter adjustments to comply with standard protocols.
Every adjustment will be meticulously executed, adhering strictly to industry standards, guaranteeing superior performance.
Power Capacity: Versatile and robust, ranging between 25-2500KVA to meet diverse power demands.
Voltage Levels: A broad spectrum to choose from, including 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, providing comprehensive solutions.
Voltage Level Overview:
Type of Voltage Regulation: Flexibility at its best with options for Off-circuit or On-load adjustments.
Tapping Range: Personalize your power solution with options of ±5%, ±2x2.5%, ±4x2.5%, tailored to fit your needs.
Frequency Options: Select either 50Hz or 60Hz to perfectly align with your power system.
Phases: Offered in both Three-phase and single-phase, adaptable for your precise requirements.
Connection Symbol: Dyn11, Yyn0—customizable to perfectly suit your specific needs.
Short-circuit Impedance: Comes engineered with Standard Impedance, ensuring consistent and reliable performance.
Operational Conditions: Optimized for altitudes up to 1000m and ambient temperatures not exceeding 40°C, ensuring optimal functionality.
Should conditions deviate from the norm, we will implement necessary parameter adjustments, strictly following standard guidelines to ensure compliance and efficiency.
The fully sealed oil-immersed power transformer, a testament to Chaotai Power's innovative prowess, stands out with its incredibly low energy loss, silent operation, and superior efficiency. It is the epitome of an energy-saving solution that significantly curtails pollution.
Setting a new standard, this fully sealed design surpasses traditional oil-immersed transformers by negating the need for an oil conservator. It seamlessly manages oil volume changes through the adaptive elasticity of the corrugated oil tank sheet, ensuring the transformer remains unaffected by air exposure. This essential feature not only prevents oil deterioration and extends insulation longevity but also greatly enhances reliability, removing the need for regular 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 technological brilliance within the ever-evolving realm of electrical integration. As a distinguished high-tech enterprise, we boast a highly skilled R&D, production, and service team, fortified by over 15 years of invaluable industry expertise. Our unwavering pursuit of extraordinary excellence sets us apart as pioneers of innovation, leading the charge in cutting-edge advancements.
Our expansive product portfolio showcases an array of state-of-the-art innovations, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These exceptional products have become indispensable across diverse sectors such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their utility extends to both commercial and residential applications. We take immense pride in shaping the future with our groundbreaking solutions, empowering industries and enhancing lives.
Guided by a philosophy of relentless technological advancement and 'smart manufacturing,' we are firmly dedicated to fostering a culture of excellence through the integration of top-tier technical talents. This strategic approach bolsters our core strengths, ensuring we consistently deliver unparalleled service value to our clients. Our remarkable growth journey is a testament to our ethos: transforming from inception to industry leadership through unwavering dedication. Our business strategy is firmly rooted in innovation, with an unwavering commitment to quality as the cornerstone of our survival, market reputation as the pathway to development, and management efficiency as the driver of profitability. We are dedicated to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision is to enhance our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations reaching new heights. Integrity, unmatched quality, exceptional service, and customer satisfaction form the core of our values. We persistently strive for excellence, continuously innovating to establish a brand that is synonymous with trust. The appreciation of our customers fuels our ambition. We extend our deepest gratitude to our loyal customers, both new and longstanding, and warmly invite you to join us on a shared journey towards a brighter tomorrow with Senhang Technology.
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.