Product Description



Oil Immersed Series Transformer:
The S11-M series, a masterpiece of innovation from Chaotai Power, is a fully sealed oil-immersed power transformer that stands out in its class. Showcasing impressive benefits like minimized energy loss, whisper-quiet operation, and outstanding efficiency, this series is designed for superior energy conservation and reduced environmental impact. Unlike conventional oil-immersed transformers, this cutting-edge model eliminates the need for an oil conservator. Its intelligent design allows the oil volume to self-adjust through the resilient corrugated oil tank. This design ensures a hermetic seal from atmospheric exposure, significantly slowing oil degradation and insulation aging, thereby enhancing operational dependability and reducing routine maintenance.
1. Power Capacity: Ranging from 25KVA to an impressive 2500KVA, with voltage ratings of 24KV, 30KV, 33KV, 35KV, 36KV, or tailored to customer specifications. 2. Voltage Level: Options available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation.
4. Tapping Range: Offers versatile adjustments at ±5%, ±2x2.5%, and ±4x2.5%.
5. Frequency: Compatible with both 50Hz and 60Hz.
6. Phases: Available in both Three-phase and Single-phase configurations.
7. Connection Symbol: Configurable as Dyn11, Yyn0, or per specific requirements.
8. Short-circuit Impedance: Adheres to standard impedance specifications.
9. Altitude and Temperature: Engineered for altitudes up to 1000m, withstanding ambient temperatures up to 40°C. If conditions exceed these parameters, we will expertly adjust specifications to meet standards.
In cases where standard conditions are not met, customized parameter adjustments will ensure compliance and optimal performance.
Power Capacity: From a robust 25KVA to a formidable 2500KVA, our transformers cater to a range of power requirements.
Voltage Options: Flexible configurations include 10KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV, meeting diverse power system demands.
Voltage Level: Tailored to industry needs with a variety of voltage levels for precise application.
Voltage Regulation: Available in Off-circuit and On-load options to suit various operational demands.
Tapping Range: Customizable to ±5%, ±2x2.5%, ±4x2.5% for refined control.
Frequency: Seamlessly compatible with both 50Hz and 60Hz systems for global applicability.
Phases: Available in adaptable Three-phase or Single-phase to match specific power distribution needs.
Connection Symbol: Adjustably set as Dyn11 or Yyn0, or tailored as required for optimal connectivity.
Short-circuit Impedance: Engineered to meet standard impedance requirements for reliable performance.
Altitude & Temperature: Designed to function effectively at altitudes up to 1000m and ambient temperatures not exceeding 40°C.
Should operational parameters exceed standard conditions, our technical team will recalibrate specifications to ensure consistent performance and compliance.
Chaotai Power's fully sealed oil-immersed transformer revolutionizes energy efficiency, offering low loss, low noise, and unmatched effectiveness, delivering significant energy savings and reducing environmental impact.
This advanced fully sealed transformer model surpasses traditional designs by eliminating the oil conservator. Its innovative oil management system, utilizing a flexible corrugated oil tank, ensures isolation from the atmosphere, significantly slowing oil deterioration, and insulation aging. This enhances operational reliability and minimizes maintenance needs, ensuring uninterrupted, efficient performance.
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 cutting-edge, high-tech enterprise, passionately dedicated to the realm of electrical integration. With a stellar team of experts in Research & Development, production, and service, our company boasts over 15 illustrious years of pioneering industry experience.
Our distinguished product line encompasses high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. Our products are prominently featured across diverse sectors, including energy, chemical industries, metal smelting, power grids, industrial manufacturing, academia, research institutions, healthcare, pharmaceuticals, municipal commerce, water conservancy, hydropower, road traffic, as well as commercial and residential spaces.
Rooted in a philosophy of relentless technological innovation and 'smart manufacturing,' we actively recruit top-tier technical talent to significantly boost our core competitiveness. Our mission is to provide unparalleled value to our customers, aiming to establish the preeminent brand in the industry. Since inception, our company's journey has been marked by outstanding progress, transforming from the ground up to achieve greatness. We embrace innovation, adhering to a progressive business model that champions survival through superior quality, market adaptability, development through an esteemed reputation, and efficiency driven by exemplary management. Our commitment to 'technology as the guide, standardized management, excellent quality, and customer satisfaction' strengthens our market stance, setting ambitious targets to serve China's electric power and grid transmission sectors with unmatched speed and strength. Integrity forms our bedrock, quality remains our pinnacle, service is our promise, and customer satisfaction is our eternal creed. In our pursuit of excellence and ceaseless innovation, we aim to build a brand synonymous with trustworthiness. Your appreciation fuels our momentum. We extend heartfelt thanks to both new and loyal patrons for their unwavering support. Together with Senhang Technology, we eagerly anticipate collaborating to forge a brighter future.
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.