Product Description



Oil Immersed Series Transformer:
Introducing the pinnacle of efficiency and innovation: the S11-M Series Fully Sealed Oil Immersed Power Transformer by Chaotai Power. Revel in its remarkable features of minimal energy loss, whisper-quiet operation, and unmatched efficiency, all designed to deliver exceptional energy-saving results while minimizing environmental impact. This cutting-edge transformer distinguishes itself from standard oil-immersed models by eliminating the conventional oil conservator. Instead, it ingeniously regulates oil volume through the elasticity of its corrugated oil tank sheets, ensuring the unit is shielded from air exposure. Experience prolonged oil integrity and insulation longevity, bolstering operational reliability and reducing the need for routine maintenance.
1. Power Capacity: 25-2500KVA, available in 24KV, 30KV, 33KV, 35KV, 36KV, and customizable upon customer request. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-Circuit and On-Load for precise control.
4. Tapping Range: Offers flexibility with ±5%, ±2x2.5%, ±4x2.5% for optimal performance.
5. Frequency: Compatible with both 50Hz and 60Hz power systems.
6. Phases: Available in both three-phase and single-phase configurations.
7. Connection Symbol: Options include Dyn11 and Yyn0, or tailor it to your specific requirements.
8. Short-Circuit Impedance: Designed to standard impedance for reliable operation.
9. Altitude: Suitable for altitudes not exceeding 1000m, with ambient temperatures up to 40°C. If requirements differ, we offer parameter modulation in
accordance with industry standards to ensure optimal performance.
Power Capacity: Spanning 25-2500KVA for diverse applications.
Voltage levels: Select from an array of options including 10KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level: Precisely tailored for your operational demands.
Type of Voltage Regulation: Opt for Off-Circuit or On-Load regulation.
Tapping Range: Adjustable at ±5%, ±2x2.5%, ±4x2.5% to meet diverse load conditions.
Frequency: Suitable for 50Hz or 60Hz systems, ensuring global compatibility.
Phases: Adaptable to both single-phase and three-phase power needs.
Connection Symbol: Configurable as Dyn11, Yyn0, or customized upon request.
Short-Circuit Impedance: Engineered to standard specifications for dependable performance.
Altitude and Temperature: Designed for altitudes not exceeding 1000m and ambient temperatures not exceeding 40°C. For conditions beyond these parameters,
we provide customization in alignment with industry standards to ensure uninterrupted functionality.
The Fully Sealed Oil Immersed Power Transformer by Chaotai Power is a testament to engineering excellence, offering low loss, low noise, and superior efficiency. This powerhouse provides exceptional energy conservation and reduces environmental impact effectively.
In comparison to conventional oil-immersed transformers, our fully sealed design eliminates the need for an oil conservator. Utilizing the corrugated tank's elasticity, it automatically adjusts oil volume, remaining isolated from air. This innovative approach prevents oil degradation and insulation aging, significantly enhancing operational reliability and minimizing maintenance requirements during normal 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., a beacon of innovation in the realm of electrical integration, stands as a high-tech enterprise dedicated to excellence. With a seasoned team boasting over 15 years of robust industry experience in R&D, production, and unparalleled service delivery, we are setting new standards for the future.
Our diverse and technologically advanced product offerings include high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and cutting-edge substations. Presently, our solutions are seamlessly integrated across a wide array of sectors such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academic institutions, healthcare, municipal commerce, water management, hydropower, road traffic, and both commercial and residential sectors.
Embracing the philosophy of 'smart manufacturing' through relentless technological innovation, we are committed to cultivating high-caliber technical talent. This strategy enhances our core strengths, empowering us to deliver unparalleled value to our customers. Since our inception, we have charted a remarkable journey from inception to excellence by steadfastly adhering to principles of superior quality, reputation-driven development, and efficiency. Our relentless pursuit of innovation is guided by the tenets of 'technology leadership, standardized management, premium quality, and customer satisfaction.' We aim to elevate our market position by providing strategic, transformational solutions in China's power transmission and distribution sectors. At the heart of our ethos lies integrity, unmatched quality, and unswerving service dedication, with customer satisfaction as our perpetual goal. Committed to excellence and continuous innovation, we aspire to build a trustworthy brand. Your trust propels us forward. We extend heartfelt gratitude to all our customers, both new and longstanding, for your unwavering support and enthusiasm. With Senhang Technology, let's forge a future of boundless potential together.
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.