Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil-immersed power transformer masterfully engineered by Zhejiang Chaotai Complete Equipment Co., Ltd. This outstanding transformer is renowned for its superior low energy loss, whisper-quiet operation, and unparalleled efficiency. It stands as a beacon of energy conservation, dramatically reducing environmental impact and pollution. Distinct from conventional oil-immersed transformers, this cutting-edge model dispenses with the oil conservator. Its intelligent architecture autonomously adjusts and compensates for oil volume variations, utilizing the elasticity of the corrugated oil tank to maintain a perfect seal against air exposure. This groundbreaking feature not only prevents oil degradation and delays insulation aging but also significantly enhances operational reliability, all the while eliminating the necessity for maintenance during normal operations.
1. Power Capacity: 25-2500KVA, adaptable to 24KV, 30KV, 33KV, 35KV, 36KV, with customization available to meet specific customer requirements 2. Voltage Level: Tailored to provide optimal performance at levels 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Choose between Off-circuit or On-load options for precise control
4. Tapping Range: Variability options include ±5%, 2x2.5%, ±4x2.5% for enhanced flexibility
5. Frequency: Configurable for either 50Hz or 60Hz to suit diverse applications
6. Phases: Available in three-phase or single-phase configurations for versatile use
7. Connection Symbol: Standard configurations are Dyn11, Yyn0, with customization available upon request
8. Short-circuit Impedance: Engineered to standard impedance for reliable performance
9. Operational Conditions: Designed for altitudes up to 1000m and ambient temperatures below 40°C. Should these conditions vary, adjustments will be made following standard protocols.
All adjustments will strictly comply with industry standards, ensuring consistent quality and performance.
Power Capacity: Ranges from 25-2500KVA, ensuring extensive adaptability
Voltage Levels: Flexible options including 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV for a wide range of applications
Voltage Level Overview:
Type of Voltage Regulation: Choose between precise Off-circuit or efficient On-load regulation
Tapping Range: Offers ±5%, ±2x2.5%, ±4x2.5% for tailored performance
Frequency Options: Available in either 50Hz or 60Hz for optimum compatibility
Phases: Customizable in three-phase or single-phase for diverse needs
Connection Symbol: Default settings are Dyn11, Yyn0, with customization to meet specific requirements
Short-circuit Impedance: Engineered to meet standard impedance, ensuring stability
Operational Conditions: Designed to perform under altitudes up to 1000m, with ambient temperatures not exceeding 40°C
Should conditions deviate, necessary parameter adjustments will be meticulously made in accordance with standard guidelines.
The fully sealed oil-immersed power transformer by Chaotai Power epitomizes innovation, offering low energy loss, silent operation, and exceptional efficiency. It provides an impressive energy-saving solution, substantially reducing pollution.
Unlike traditional oil-immersed transformers, this fully sealed design eradicates the need for an oil conservator. It adeptly manages oil volume fluctuations through its corrugated oil tank's elasticity, maintaining the transformer's air isolation. This essential feature fortifies oil integrity, slows insulation aging, boosts reliability, and eradicates 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

Welcome to Zhejiang Chaotai Complete Equipment Co., Ltd., where our technological acumen shines brightly in the electrical integration industry. As a preeminent high-tech enterprise, we are driven by a zealous R&D, production, and service team, fortified with an impressive legacy of over 15 years of transformative industry experience. Our unwavering quest for excellence and innovation propels us to the forefront of industry leadership.
Explore our diverse and cutting-edge product portfolio that features innovations like high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, sophisticated gas-insulated switchgear, and robust substations. These solutions are crucial across a myriad of sectors, from energy and chemical industries to metal smelting and electric power grids. They extend their impact on industrial manufacturing, academic institutions, healthcare, municipal commerce, water management, hydropower, and road traffic, enriching both commercial and residential applications. We pride ourselves on driving the future with our revolutionary solutions, energizing progress across all these vital domains.
Rooted in a philosophy of relentless technological innovation and 'smart manufacturing,' we are passionately committed to nurturing a culture of excellence by integrating top-tier technical talents. This strategic endeavor enhances our core capabilities, ensuring we provide extraordinary service value to our clients. Our growth story, from our origins to our ascension as an industry leader, is a testament to our commitment. Innovation remains our business strategy's bedrock, with quality as our survival cornerstone, market reputation as our development pathway, and management efficiency as our profitability key. We pledge to leverage '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 elevate our market competitiveness, serving China's electric power, grid transmission, and distribution sectors with aspirations that aim ever higher and stronger. Integrity, unmatched quality, exceptional service, and customer satisfaction form our core values. Our relentless pursuit of excellence and boundless innovation aims to establish a brand synonymous with trust. The acknowledgment from our customers fuels our ambitions. We express our deep gratitude to our loyal customers, both new and enduring, and warmly invite you to join Zhejiang Chaotai on a shared voyage towards a more luminous future.
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.