Product Description
Oil Immersed Series Transformer:
Introducing the S11-M series, an innovative fully sealed oil immersed power transformer masterfully developed by Chaotai Power. This cutting-edge transformer boasts remarkably low loss, minimal noise, and exceptional efficiency. It stands as a testament to energy-saving innovation, significantly reducing pollution. Our fully sealed design eliminates the traditional oil conservator, and the dynamic elasticity of the corrugated oil tank automatically adjusts oil volume changes. Sealed from the air, it prevents oil degradation and insulation aging, ensuring enhanced operational reliability and maintenance-free performance under normal conditions.
1. Power Capacity: Ranging from 25KVA to a robust 2500KVA, suitable for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable as per customer requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation to suit your needs.
4. Tapping Range: Options available at ±5%, 2x2.5%, ±4x2.5% for precise voltage control.
5. Frequency: Compatible with both 50Hz and 60Hz power systems for versatile application.
6. Phases: Configurable in both three-phase and single-phase systems.
7. Connection Symbol: Dyn11, Yyn0, or customized as requested by the client.
8. Short-circuit Impedance: Designed with standard impedance for reliable operation.
9. Altitude is not exceeding 1000m, and ambient temperature not exceeding 40°C. If these conditions cannot be met, we will adjust parameters according to standard regulations.
Providing adjustments in line with established standards if environmental conditions differ.
Power Capacity: Spanning an impressive range from 25KVA up to 2500KVA.
Voltage Level: Configurable options include IOkV, 11kV, 20kV, 22kV, 30kV, 33kV, 35kV, 36kV.
Voltage Level:
Type of Voltage Regulation: Offering flexibility with Off-circuit or On-load options.
Tapping Range: Precision options available at ±5%, ±2x2.5%, ±4x2.5% for fine-tuning.
Frequency: Designed for seamless operation at either 50Hz or 60Hz.
Phases: Available in both three-phase and single-phase configurations.
Connection Symbol: Options available include Dyn11, Yyn0, or as specifically requested.
Short-circuit Impedance: Built with standard impedance for stability and performance.
Designed for altitudes up to 1000m and ambient temperatures not exceeding 40°C.
Parameter adjustments available according to standard if environmental conditions vary.
Our fully sealed oil immersed power transformer, crafted by Chaotai Power, is a hallmark of innovation, offering low loss, low noise, and superior efficiency. This advanced design delivers excellent energy-saving benefits while minimizing environmental impact.
In comparison to standard oil immersed transformers, our fully sealed variant eliminates the need for an oil conservator. The design automatically adjusts oil volume changes through the flexible corrugated oil tank, effectively isolating the transformer from air exposure. This isolation helps in reducing oil degradation and insulation aging, significantly boosting operational reliability and ensuring maintenance-free operation during regular use.
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 tall as a beacon of innovation in the realm of electrical integration. As a distinguished high-tech enterprise, we boast a seasoned R&D, production, and service team, whose expertise spans over 15 illustrious years in the industry, ensuring cutting-edge solutions and unparalleled service excellence.
Our diverse range of products is a testament to our commitment to quality and innovation. We specialize in producing high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. Our state-of-the-art products have found their place in a myriad of sectors, including the energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, medical and pharmaceutical fields, as well as municipal commerce and residential areas. Our solutions empower water conservancy and hydropower, enhance road traffic systems, and serve commercial spaces, making us a trusted partner across diverse applications.
Driven by an unwavering commitment to technological innovation, we embrace the philosophy of "smart manufacturing," investing in top-tier technical talent to boost our core competencies. We are relentlessly dedicated to offering invaluable services and building an industry-leading brand renowned for excellence. Since our inception, we have charted an evolutionary journey from the ground up, continuously redefining excellence through innovation. Our guiding principles are rooted in quality-driven survival, reputation-based development, and management-led efficiency. We proudly pledge to uphold the highest standards of technology, standardized management, and unwavering quality, ensuring customer satisfaction is at the heart of our operations. We strive to enhance our competitive edge in the market, setting our sights on empowering China's power transmission and distribution sectors with unmatched speed, strength, and ambition. Integrity, quality, service, and customer satisfaction are the cornerstones of our philosophy. With a commitment to excellence and innovation, we aim to build a brand you can trust. Your recognition fuels our growth, and we extend our heartfelt gratitude to all our valued customers for their enduring support. Zhejiang Chaotai Complete Equipment Co., Ltd., looks forward to forging a bright future together with you.
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.
Audited Supplier 
){kind=link}