Product Description



Oil Immersed Series Transformer:
Introducing the S11-M Series Fully Sealed Oil Immersed Power Transformer, masterfully engineered and crafted by Chaotai Power. This remarkable transformer boasts unparalleled qualities like low loss, reduced noise, and exceptional efficiency. It delivers outstanding energy-saving benefits, significantly minimizing pollution. Unlike standard oil-immersed transformers, this fully sealed marvel eliminates the need for an oil conservator. Its oil volume adjustments are seamlessly handled by the corrugated oil tank's elastic corrugated sheet. By isolating the transformer from air exposure, it effectively prevents and decelerates oil deterioration and insulation aging. This not only enhances operational reliability but also eliminates the need for maintenance during standard operations.
1. Power Capacity: From 25KVA to a robust 2500KVA, accommodating various voltage levels such as 24KV, 30KV, 33KV, 35KV, and 36KV, with customizable options to suit every customer's unique requirements. 2. Voltage Level: Choose from an array of voltage levels including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Opt for Off-circuit or On-load, based on your specific needs.
4. Tapping Range: Offers flexibility with options like ±5%, 2x2.5%, and ±4x2.5% to cater to diverse applications.
5. Frequency: Available in both 50Hz and 60Hz to match different regional power standards.
6. Phases: Designed to support both three-phase and single-phase systems, providing versatility.
7. Connection Symbol: Available configurations include Dyn11 and Yyn0, or as per customer request.
8. Short-Circuit Impedance: Engineered with Standard Impedance to ensure optimal performance and reliability.
9. Altitude and Temperature: Designed to thrive at altitudes not exceeding 1000m, and ambient temperatures up to 40°C. If these conditions are exceeded, parameters will be modulated according to standard requirements.
In cases where standard conditions are not met, we diligently adjust parameters to align with industry standards, ensuring consistent performance.
Power Capacity: Ranges from a modest 25KVA to a formidable 2500KVA, catering to diverse energy needs.
Voltage Levels: A wide spectrum including IOkY, 22KY, 3OKV, 33KV, 35KV, and 36KV, among others.
Voltage Level:
Type of Voltage Regulation: Offers the choice between Off-circuit and On-load to suit various operational demands.
Tapping Range: Comprises options such as ±5%, ±2x2.5%, and ±4x2.5% for comprehensive control.
Frequency: Compatible with both 50Hz and 60Hz, adaptable to global standards.
Phases: Accommodates both three-phase and single-phase configurations, ensuring flexibility.
Connection Symbol: Configurable to Dyn11 or Yyn0, with further customization available upon request.
Short-Circuit Impedance: Maintains Standard Impedance to uphold exceptional performance.
Altitude and Temperature: Capable of operating at altitudes up to 1000m and ambient temperatures not exceeding 40°C.
For environments where standard conditions aren’t met, we meticulously recalibrate parameters to conform with industry norms, ensuring optimal performance and reliability.
The fully sealed oil-immersed power transformer, conceived and produced by Chaotai Power, stands out for its low loss, minimal noise, and high efficiency. It offers remarkable energy-saving benefits and significantly reduces pollution.
In a comparative analysis with conventional oil-immersed transformers, the fully sealed variant innovatively abolishes the oil conservator. Its oil volume changes are expertly moderated by the corrugated oil tank's elasticity. This design isolates the transformer from air exposure, proficiently curbing oil deterioration and insulation aging, enhancing operational reliability, and precluding 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

Zhejiang Chaotai Complete Equipment Co., Ltd. proudly stands as a beacon of high-tech innovation in the world of electrical integration. With a robust and dynamic team specializing in R&D, manufacturing, and service, we bring over 15 years of unparalleled industry experience to the table.
Our impressive product line features top-of-the-line high-voltage solid-state soft starters, advanced capacitor cabinets, both high and low voltage switchgear solutions, cutting-edge gas-insulated switchgear, and robust substations. These products are engineered to perfection and find extensive applications across a myriad of sectors, including energy and chemical industries, metal smelting, expansive electric power grids, industrial manufacturing, esteemed universities and research hubs, the rapidly evolving medical and pharmaceutical markets, thriving municipal commerce, water conservancy projects, hydropower initiatives, road and traffic management, and the extensive realm of commercial and residential spaces.
Embracing the spirit of technological innovation, we at Zhejiang Chaotai adopt a forward-thinking philosophy of 'smart manufacturing.' Our commitment to attracting top-tier technical talent is unwavering, aimed at boosting our core competitive edge while delivering unparalleled value to our clientele. Our ambition is to craft an industry-leading brand. Since our inception, we've transformed from humble beginnings to a position of excellence, driven by innovation and a strategic focus on quality-driven survival, market responsiveness, reputation-fueled growth, and efficiency-led management. Our dedication to 'technology as the guide, standardized management, superior quality, and customer delight' fortifies our market presence, empowering us to serve China's power transmission and distribution sectors with unrivaled speed, strength, and ambition. Integrity is our cornerstone, quality is our creed, service is our hallmark, and customer satisfaction is our unwavering promise. We relentlessly pursue excellence, continuous innovation, and the establishment of a brand rooted in trust. Your recognition fuels our journey. We extend heartfelt gratitude to our loyal clientele for their steadfast support and enthusiasm, and we eagerly anticipate a future of collaboration, progress, and shared success.
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.