Product Description



Oil Immersed Series Transformer:
Introducing the S11-M Series Fully Sealed Oil Immersed Power Transformer, a remarkable innovation by Chaotai Power. This transformer boasts exceptional attributes like low loss, low noise, and superior efficiency, all contributing to remarkable energy savings and reduced environmental impact. Unlike standard oil-immersed transformers, this fully sealed marvel eliminates the need for an oil conservator. The dynamic adjustment of oil volume is effortlessly achieved through the corrugated oil tank's flexible design. By being isolated from the air, it significantly slows oil deterioration and insulation aging, thus boosting operational reliability and minimizing the need for maintenance during regular operations.
1. Power Capacity: Ranging from 25KVA to 2500KVA, available in 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to specific customer requirements. 2. Voltage Level: Offering options of 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load options.
4. Tapping Range: Broad adjustable options of ±5%, 2x2.5%, and ±4x2.5% to suit your needs.
5. Frequency: Compatible with both 50Hz and 60Hz systems.
6. Phases: Available in Three-phase or Single-phase configurations.
7. Connection Symbol: Standard options like Dyn11, Yyn0, or customizable upon request.
8. Short-circuit Impedance: Engineered to meet Standard Impedance requirements ensuring reliability.
9. Altitude: Suitable for areas not exceeding 1000m altitude and an ambient temperature not exceeding 40°C.
In instances where conditions exceed these parameters, we will adjust the settings in accordance with the standards to ensure optimal performance.
Power Capacity: From a versatile range of 25KVA to 2500KVA to fit diverse power needs.
Voltage Levels: Catering to a broad spectrum with options including 10KV, 13.8KV, 20KV, 33KV, 35KV, and more to match specific requirements.
Voltage Level:
Type of Voltage Regulation: Offering flexibility with Off-circuit or On-load regulation types.
Tapping Range: Comprehensive range adjustments of ±5%, ±2x2.5%, and ±4x2.5%.
Frequency: Designed to operate seamlessly with both 50Hz and 60Hz frequencies.
Phases: Available in both Three-phase and Single-phase for diverse applications.
Connection Symbol: Options include Dyn11, Yyn0, and more, tailored as needed.
Short-circuit Impedance: Crafted to meet standard impedance specifications.
Altitude: Ideal for use in regions not exceeding 1000m in altitude, with a maximum ambient temperature of 40°C.
Should the conditions exceed these specifications, adjustments will be made to conform to standard regulations, ensuring consistent performance.
The fully sealed oil immersed power transformer by Chaotai Power stands out for its low loss, low noise, and exceptional efficiency, offering remarkable energy savings and environmental benefits.
When compared to traditional oil-immersed transformers, this fully sealed design forgoes the oil conservator. The oil volume is adeptly managed by the elasticity of the corrugated oil tank, isolating the transformer from air exposure to slow oil degradation and insulation aging, thus enhancing reliability and minimizing 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

Zhejiang ChaoTai Complete Equipment Co., Ltd. is a pioneering high-tech enterprise, dedicated to the dynamic field of electrical integration. With over 15 years of profound industry experience, we boast a professional team excelling in research and development, production, and customer service.
Our distinguished portfolio of main products encompasses high-voltage solid-state soft starters, capacitor cabinets, versatile high and low voltage switchgear, advanced gas-insulated switchgear, and robust substations. These innovative solutions are extensively deployed across diverse sectors, including energy and chemical industries, metal smelting, expansive electric power grids, industrial manufacturing, academic institutions, research facilities, medical and pharmaceutical sectors, municipal commerce, water management and hydropower, road traffic systems, as well as commercial and residential domains.
Firmly rooted in the philosophy of technological innovation and 'smart manufacturing,' we actively integrate top-tier technical talent to amplify our core competitive edge. Our unwavering mission is to offer unparalleled services to our clientele, aspiring to establish the industry's premier brand. Since our inception, we have evolved from inception to excellence, consistently advancing through innovation. Our modern business strategy is anchored in quality for survival, market responsiveness, reputation-driven growth, and management-driven efficiency. Guided by technology, standardized management, superior quality, and complete customer satisfaction, we enhance our market competitiveness. Our commitment is to the electric power and grid sectors of China, targeting faster, stronger, and higher aspirations. Integrity is our foundation, quality is our beacon, service is our hallmark, and customer satisfaction is our perpetual pursuit. We strive for excellence, relentless innovation, and an unyielding trust in our brand development. Your appreciation fuels our progress. We extend our heartfelt gratitude to our loyal patrons, and Zhejiang ChaoTai eagerly anticipates forging a brighter 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.