Product Description



Oil Immersed Series Transformer: Introducing a proven series of oil immersed transformers that combine superior engineering with cutting-edge design for optimal performance.
The S11-M series, a masterpiece by Chaotai Power, stands as a benchmark in fully sealed oil immersed power transformers. Boasting low loss, low noise, and exceptional efficiency, this series not only achieves remarkable energy-saving effects but also significantly reduces pollution. Unlike the typical oil immersed transformers, our fully sealed model eliminates the necessity of an oil conservator. It features an innovative corrugated oil tank that dynamically adjusts and compensates the oil volume through the elasticity of its corrugated sheet. This cutting-edge design ensures the transformer remains isolated from the air, effectively preventing deterioration of oil and insulation aging. The result is enhanced operational reliability and minimized maintenance during regular operation.
1. Power Capacity: Ranging from 25-2500KVA, available in 24KV, 30KV, 33KV, 35KV, and 36KV, with further customization available to meet specific customer requirements. 2. Voltage Level Options: Includes 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Voltage Regulation Type: Options for both Off-circuit and On-load regulation.
4. Tapping Range: Flexible options from ±5% to ±4x2.5%, catering to diverse operational needs.
5. Frequency: Compatible with both 50Hz and 60Hz systems, ensuring versatile application.
6. Phases: Available in both Three and Single phase configurations for tailored application.
7. Connection Symbol: Configurations include Dyn11, Yyn0, or as otherwise specified by the client.
8. Short-Circuit Impedance: Adheres to standard impedance requirements for reliable performance.
Altitude: Suitable for altitudes not exceeding 1000m, with ambient temperatures up to 40°C. For conditions outside these limits,
we will adjust parameters in accordance with industry standards to ensure optimal performance.
Power Capacity: Specifically engineered from 25-2500KVA to cater to a broad spectrum of power requirements.
Voltage Levels: Available in a comprehensive range from 10KV to 36KV, adaptable to a variety of settings.
Voltage Level: Tailored to meet diverse power demands with an extensive selection of voltage levels.
Type of Voltage Regulation: Options include Off-circuit and On-load, providing flexibility for different applications.
Tapping Range: Offers a wide range of options from ±5% to ±4x2.5% for precision control.
Frequency: Designed for compatibility with both 50Hz and 60Hz systems.
Phases: Available in both Three and Single phase options.
Connection Symbol: Configurations available include Dyn11 and Yyn0, or as per client specification.
Short-circuit Impedance: Meets standard impedance requirements for assured stability.
Altitude: Suitable for up to 1000m with temperatures not exceeding 40°C, ensuring reliable operation in diverse environments.
Should these conditions not be met, we will adjust the parameters in accordance with industry standards to maintain optimal performance.
Our fully sealed oil immersed power transformer, a brilliant creation by Chaotai Power, is designed for low loss, low noise, and high efficiency. This innovative solution not only achieves significant energy savings but also effectively reduces pollution.
In comparison to conventional oil immersed transformers, our fully sealed model eliminates the oil conservator. It features a revolutionary design where the change in oil volume is automatically adjusted by the corrugated sheet's elasticity within the oil tank. This ensures the transformer remains isolated from air, thereby preventing oil degradation and insulation aging. Such advancements enhance operational reliability and eliminate the need for maintenance during regular operations.
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 proudly as a trailblazing high-tech enterprise, dedicated to pioneering advancements in electrical integration. With a seasoned team renowned for their professional expertise in R&D, production, and service, we boast an impressive legacy of over 15 years of industry mastery.
Our diverse portfolio boasts a range of cutting-edge products, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and comprehensive substation solutions. These state-of-the-art innovations find application across a spectrum of sectors such as energy, chemical industries, metal smelting, electric power grids, and industrial manufacturing. Our reach extends to academic institutions, medical and pharmaceutical sectors, municipal commerce, water conservancy, hydropower, road traffic, and both commercial and residential domains, illustrating the unparalleled versatility and reliability of our offerings.
Guided by a steadfast commitment to technological innovation, our philosophy of 'smart manufacturing' drives us to continuously attract top-tier technical talent, enhancing our core capabilities and offering unmatched value to our esteemed clientele. Our journey from inception to excellence is marked by relentless progress, constantly pushing boundaries to deliver quality, reputation-driven development, and efficient management. As pioneers in the realm of modern business, we are resolute in our mission to serve China's electric power and grid sectors with ever-evolving speed, strength, and ambition. Integrity forms the bedrock of our operations, where quality reigns supreme, service is paramount, and customer satisfaction is our unwavering pledge. Embarking on a relentless pursuit of excellence, we innovate continuously, aspiring to build a brand synonymous with trust. Your trust fuels our drive, and we extend heartfelt gratitude to our loyal patrons, both new and longstanding. Join Senhang Technology as we forge ahead, hand in hand, toward 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.