Product Description



Introducing the Oil Immersed Series Transformer:
The S11-M series represents a revolutionary leap in transformer technology. Crafted meticulously by Chaotai Power, these fully sealed oil immersed power transformers boast remarkable attributes such as minimal loss, minimal noise, and exceptional efficiency. This fusion not only delivers substantial energy savings but also contributes to environmental conservation by reducing pollutants. Unlike standard oil immersed transformers, our advanced design eliminates the need for an oil conservator. Instead, it ingeniously utilizes the corrugated oil tank's flexible sheets to automatically adjust and compensate for oil volume changes. By sealing the transformer from the atmosphere, it significantly slows the deterioration of oil and insulation, thereby enhancing operational reliability and reducing maintenance needs.
1. Power Capacity: Offering a versatile range from 25 to 2500 KVA, with voltage levels including 24KV, 30KV, 33KV, 35KV, 36KV, and fully customizable to meet your specific requirements. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, ensuring adaptability for diverse applications. 3. Type of Voltage Regulation: Choose between Off-circuit and On-load regulation to suit operational demands.
4. Tapping Range: Offers precision with ±5%, ±2x2.5%, or ±4x2.5% adjustments for tailored performance.
5. Frequency: Designed for flexibility, operating seamlessly at either 50Hz or 60Hz.
6. Phases: Available in both Three-phase and Single-phase configurations, catering to varied needs.
7. Connection Symbol: Configurations include Dyn11, Yyn0, or customized as per request for optimal compatibility.
8. Short-circuit Impedance: Engineered to standard impedance values, ensuring reliability under demanding conditions.
9. Altitude and temperature constraints: Ideal performance at altitudes not exceeding 1000m, with ambient temperatures capped at 40°C. Should these conditions vary,
we promise to fine-tune parameters in strict compliance with industry standards.
Power capacity ranges from 25 to 2500 KVA for adaptable energy solutions.
Voltage levels offered include a spectrum: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level Options:
Versatile Voltage Regulation: Choose from Off-circuit or On-load options to fit your specific requirements.
Precision Tapping Range: Featuring ±5%, ±2x2.5%, and ±4x2.5% for accurate adjustments.
Frequency Flexibility: Operates at both 50Hz and 60Hz, accommodating various grid standards.
Phases: Available in robust Three-phase and adaptable Single-phase models.
Connection Symbol Options: Available as Dyn11, Yyn0, or tailored to your specifications.
Short-circuit Impedance: Designed to standard specifications for enhanced performance.
Altitude and Temperature: Performs optimally below 1000m altitude and in temperatures not exceeding 40°C.
Should conditions deviate, we will adjust parameters in full alignment with established standards.
The fully sealed oil immersed power transformer by Chaotai Power offers a trifecta of low loss, low noise, and high efficiency, ensuring substantial energy conservation and reduced environmental impact.
Differentiating itself from conventional oil immersed transformers, this fully sealed variant eliminates the oil conservator. The innovation lies in the corrugated oil tank, which dynamically adjusts to volume changes with its flexible sheets. This design effectively isolates the transformer from air exposure, significantly decelerating oil deterioration and insulation aging. The outcome is superior operational reliability and a reduction in routine maintenance needs.
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 innovation in the realm of electrical integration. As a distinguished high-tech enterprise, we boast an exceptional team dedicated to research, development, production, and service, leveraging over 15 years of enriched industry experience to deliver unmatched excellence.
Our extensive product suite is designed to cater to a myriad of industry needs. It encompasses high-quality high-voltage solid-state soft starters, sophisticated capacitor cabinets, dynamic high and low voltage switchgear, cutting-edge gas-insulated switchgear, and robust substations. These products power a diverse range of sectors, from energy and chemicals to metal smelting, power grids, industrial manufacturing, academia, healthcare, and municipal services. Our solutions are integral to water conservancy and hydropower, road infrastructure, as well as commercial and residential arenas, underlining their vast applicability and indispensable nature.
At the heart of our operations is a steadfast commitment to technological innovation and the ethos of "smart manufacturing." We continually seek to amplify our core competitive edge by attracting top-tier technical talent. This strategic focus allows us to offer unparalleled value and service to our esteemed clients, while forging a pioneering brand in the industry. From our inception, we have embarked on a remarkable journey of growth and excellence, grounded in innovation. Quality assurance, market responsiveness, a reputation for excellence, and strategic management efficiency have guided our modern business practices. In our relentless quest for excellence, we embrace a guiding framework of 'technology leadership, standardized management, superior quality, and customer delight.' Our mission is to boost market competitiveness and advance China's power and grid sectors with ambitious goals of speed, strength, and elevation. Integrity anchors us, quality defines us, and customer satisfaction inspires us. Our pursuit of excellence and innovation fuels our drive to establish a brand that inspires trust. We owe our achievements to the unwavering support of our customers, and we warmly invite you to join us in crafting a future filled with promise and possibility.
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.