Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil-immersed power transformer engineered by Chaotai Power. This state-of-the-art transformer boasts unparalleled low loss, minimal noise output, and exceptional efficiency, promising notable energy conservation and reduced environmental impact. Unlike conventional oil-immersed transformers, our cutting-edge design eliminates the need for an oil conservator. The oil volume is ingeniously adjusted and compensated automatically through the flexible corrugated sheet, safeguarding the transformer from air exposure, thus significantly slowing oil degradation and insulation aging. This results in enhanced operational reliability and the elimination of routine maintenance requirements.
1. Power Capacity: Ranges from 25 to 2500KVA with options including 24KV, 30KV, 33KV, 35KV, 36KV, and custom specifications tailored to customer needs. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, and customizable voltage levels.
4. Tapping Range: Offering flexibility with options ±5%, ±2x2.5%, and ±4x2.5% to meet diverse operational needs.
5. Frequency: Compatible with both 50Hz and 60Hz systems for global adaptability.
6. Phases: Available in both three-phase and single-phase configurations for varied applications.
7. Connection Symbol: Choose between Dyn11, Yyn0 or customize as per your specific requirements.
8. Short-Circuit Impedance: Designed to meet the standard impedance requirements, ensuring optimal performance.
9. Altitude and Temperature: Suitable for altitudes not exceeding 1000m, with an ambient temperature tolerance up to 40°C. Adjustments are available to meet specific environmental conditions.
Adaptations can be made per standard regulations to ensure optimal performance under differing conditions.
Power Capacity: Ranging from 25 to 2500KVA, providing the flexibility to meet various power needs.
Voltage Level: Offering diverse options like 10KV, 22KY, 20KV, 30KV, 33KV, 35KV, 36KV to suit distinct requirements.
Voltage Level:
Type of Voltage Regulation: Offers the choice of Off-Circuit or On-Load regulation to match operational needs.
Tapping Range: Flexible adjustments possible with ±5%, ±2x2.5%, ±4x2.5% options to cater to specific requirements.
Frequency: Ready for use in global markets with compatibility for 50Hz or 60Hz frequencies.
Phases: Available in both three-phase and single-phase, catering to a wide array of applications.
Connection Symbol: Customizable options including Dyn11 and Yyn0, or bespoke selections as requested.
Short-Circuit Impedance: Complies with standard impedance specifications to ensure reliable performance.
Altitude and Temperature: Ideal for conditions not exceeding 1000m in altitude and ambient temperatures up to 40°C.
Should environmental conditions exceed these parameters, customized adjustments will be made in compliance with industry standards.
The fully sealed oil-immersed power transformer by Chaotai Power sets a benchmark with its low-loss, low-noise, and high-efficiency features, making it a leader in energy-saving and pollution reduction.
In contrast to standard oil-immersed transformers, this advanced fully sealed model innovatively removes the oil conservator. The oil volume fluctuations are seamlessly regulated using the corrugated oil tank's elasticity, ensuring isolation from air exposure to decelerate oil deterioration and insulation aging, ultimately boosting operational reliability and eliminating 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. stands as a beacon of innovation in the world of electrical integration, embodying a high-tech ethos. With a stellar team of R&D specialists, production experts, and service professionals, our company boasts more than 15 years of profound industry experience, crafting a legacy of excellence.
Our robust portfolio showcases a diverse array of products including high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, cutting-edge gas-insulated switchgear, and dynamic substations. These solutions are seamlessly integrated across a multitude of sectors such as energy and chemical industries, metal smelting, electric power grids, and industrial manufacturing. Our reach extends to educational institutions, medical and pharmaceutical sectors, municipal commerce, and essential infrastructure like water conservancy, hydropower, road traffic, as well as commercial and residential developments.
Dedicated to the philosophy of 'smart manufacturing,' we prioritize technological innovation, continually recruiting top-tier technical talents to fortify our competitive edge. Our mission is clear: to offer unrivaled value to our clients and to establish a premier brand in the industry. From humble beginnings to a status of brilliance, we have evolved through relentless progress and innovation. Our business model is rooted in quality and reputation, ensuring market survival and efficiency through strategic management. Our commitment is unwavering: guided by technology, underpinned by standardized management, and driven by superior quality and customer satisfaction. Our goal is to elevate China's electric power and grid transmission and distribution fields to unprecedented heights. The core of our philosophy? Integrity, supreme quality, exceptional service, and perpetual customer satisfaction. We relentlessly pursue excellence and continuous innovation, aspiring to build a brand grounded in trustworthiness. Your trust fuels our journey forward, and we express heartfelt gratitude to our loyal clientele. Together with Senhang Technology, we are poised to forge a brighter, better future in collaboration.
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.