Product Description



Oil Immersed Series Transformer:
The S11-M series fully sealed oil immersed power transformer is a marvel of engineering by Chaotai Power, boasting benefits such as low loss, minimal noise, and exceptional efficiency, making it a prime choice for energy-saving and pollution reduction. Distinct from conventional oil immersed transformers, this advanced fully sealed model eliminates the need for an oil conservator. The variation in oil volume is adeptly managed by the resilient corrugated sheet within the corrugated oil tank, ensuring seamless adjustment and compensation. Shielded from air exposure, the transformer significantly decelerates oil degradation and insulation aging, enhancing operational reliability while minimizing the need for routine maintenance.
1. Power Capacity: Spanning a range from 25KVA to an impressive 2500KVA, with available options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable specifications based on customer requirements. 2. Voltage Level: Flexible voltage options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between off-circuit and on-load regulation to suit your specific needs.
4. Tapping Range: Precisely adjustable with options of ±5%, ±2 x 2.5%, or ±4 x 2.5% to cater to diverse applications.
5. Frequency: Compatible with both 50Hz and 60Hz systems to ensure versatile utility.
6. Phases: Available in three-phase or single-phase configurations to match varied requirements.
7. Connection Symbol: Configurable as Dyn11, Yyn0, or any preferred specification upon request.
8. Short-Circuit Impedance: Comes with standard impedance to deliver optimal performance under all conditions.
9. Altitude is not exceeding 1000m, and ambient temperature should remain within 40°C. In case these conditions can't be met,
we will ensure parameter adjustments in accordance with standard regulations.
Power Capacity: From a robust 25KVA to a powerful 2500KVA, catering to a wide spectrum of energy needs.
Voltage Levels: Offering versatility with 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 24KV, 30KV, 33KV, 35KV, and 36KV options.
Voltage Level:
Type of Voltage Regulation: Options available for off-circuit or on-load regulation to fit your operational requirements.
Tapping Range: Select from ±5%, ±2 x 2.5%, or ±4 x 2.5%, allowing for tailored energy solutions.
Frequency: Adaptable to either 50Hz or 60Hz to seamlessly integrate with existing systems.
Phases: Designed for either three-phase or single-phase systems, ensuring broad compatibility.
Connection Symbol: Customizable with options like Dyn11, Yyn0, or as specified by the customer.
Short-Circuit Impedance: Engineered to standard impedance to deliver reliable and efficient operation.
Altitude: Operational at altitudes not exceeding 1000m with ambient temperatures not surpassing 40°C.
Should these conditions deviate, we will adjust parameters to align with industry standards.
Chaotai Power's fully sealed oil immersed power transformer introduces unparalleled advantages, including low loss, minimal noise, and high efficiency, all contributing to superior energy conservation and reduced environmental impact.
Unlike traditional oil immersed transformers, this cutting-edge fully sealed transformer dispenses with the oil conservator. The oil volume adapts automatically, thanks to the elasticity of the corrugated sheet in the corrugated oil tank. This innovation isolates the transformer from air exposure, significantly curbing oil degradation and insulation aging, boosting reliability, and negating the need for regular maintenance during operation.
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

Introducing Zhejiang ChaoTai Complete Equipment Co., Ltd., a beacon of innovation in the realm of electrical integration. As a distinguished high-tech enterprise, we proudly boast a dedicated team of professionals in R&D, production, and service, equipped with over 15 years of rich industry expertise.
Our product lineup is a testament to engineering excellence, featuring high-voltage solid-state soft starters, advanced capacitor cabinets, high and low voltage switchgear, cutting-edge gas-insulated switchgear, and robust substations. These products are the backbone of numerous sectors including energy and chemical industries, metal smelting, electrical power grids, industrial manufacturing, academia, medical and pharmaceutical fields, municipal commerce, water conservancy and hydropower, transport infrastructure, and both commercial and residential developments.
Driven by our core philosophy of 'smart manufacturing' and relentless technological innovation, we strive to strengthen our competitive edge by attracting top-tier technical talent. Our ambition is to establish the preeminent brand in the industry, underscored by our unwavering dedication to delivering exceptional value to our customers. Since our inception, we have charted a remarkable journey from inception to excellence. We champion a modern business ethos that prioritizes quality for survival, adopts a market-driven approach for growth, and enhances efficiency through sophisticated management. Our commitment to 'technology as the guide, standardized management, excellent quality, and customer satisfaction' is at the heart of our quality and talent management initiatives, boosting our market competitiveness. We are zealously dedicated to uplifting China's power transmission and distribution sectors with ambitious, swift, and robust objectives. Our guiding principles are integrity, superior quality, exceptional service, and unwavering customer satisfaction. The relentless pursuit of excellence, continuous innovation, and establishing a trusted brand identity are the steadfast goals at the heart of our development plans. Your support fuels our drive, and we extend our gratitude to all our cherished customers. Zhejiang ChaoTai Complete Equipment Co. looks forward to embarking on a collaborative journey to forge a brighter future together.
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.