Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil-immersed power transformer, meticulously developed and crafted by Chaotai Power. This innovative transformer is distinguished by its exceptional attributes of low loss, minimal noise, and unmatched efficiency. These features come together to deliver outstanding energy-saving benefits while significantly reducing environmental pollution. In a class of its own, this transformer eliminates the conventional oil conservator. The oil volume variations are deftly managed and automatically adjusted through the ingenious flexibility of the corrugated sheet within the corrugated oil tank. With its groundbreaking design, the transformer is isolated from air, effectively slowing the deterioration of oil and minimizing insulation aging. This ensures enhanced operational reliability and eliminates the need for maintenance during normal operation, setting new benchmarks in performance.
1. Power Capacity: Ranging from 25 to 2500KVA, available in 24KV, 30KV, 33KV, 35KV, 36KV, and other specifications tailored to customer requirements. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load settings for versatile performance.
4. Tapping Range: Flexible options at ±5 %, 2x2.5 %, and ±4x2.5 %, providing precise control over power output.
5. Frequency: Compatible with both 50Hz and 60Hz systems, offering adaptability to various power grids.
6. Phases: Available in both three-phase and single-phase configurations to suit your specific energy needs.
7. Connection Symbol: Configurations include Dyn11 and Yyn0, with custom options available upon request.
8. Short-circuit Impedance: Built to standard impedance specifications for consistent performance.
9. Altitude and Ambient Conditions: Optimal performance at altitudes not exceeding 1000m and ambient temperatures not exceeding 40°C. For conditions outside these parameters, specifications will be modulated to meet standard criteria.
We ensure modifications in accordance with standard requirements if conditions exceed limits.
Power Capacity: 25-2500KVA, offering a wide spectrum of power solutions.
Voltage Options Include: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level: Tailored to fit a broad range of applications with precision.
Type of Voltage Regulation: Select from Off-circuit or On-load to best suit your operational demands.
Tapping Range: Offers fine-tuned control with ±5%, ±2x2.5%, and ±4x2.5% adjustments.
Frequency: Engineered for compatibility with both 50Hz and 60Hz frequencies.
Phases: Designed for both three-phase and single-phase power systems.
Connection Symbol: Available in Dyn11, Yyn0, or custom connections as specified.
Short-circuit Impedance: Meets standard impedance requirements for dependable performance.
Altitude and Temperature: Operational capacity assured at altitudes up to 1000m and temperatures up to 40°C. Modifications will adhere to standards if these conditions are exceeded.
Parameter adjustments will be made in alignment with standard procedures if conditions exceed standard limits.
Chaotai Power presents a game-changing, fully sealed oil-immersed power transformer. Its low loss, low noise, and high efficiency translate to impressive energy savings and a substantial reduction in pollution, heralding a new era of eco-friendly power solutions.
By foregoing the traditional oil conservator, this fully sealed transformer incorporates a sophisticated system where oil volume shifts are seamlessly managed by the elasticity of the corrugated oil tank's sheets. This design innovation isolates the transformer from air exposure, thus mitigating oil degradation and insulation aging. This ensures superior operational reliability, effectively eliminating the need for routine maintenance under normal conditions, and setting a new standard in transformer technology.
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 at the forefront of technological innovation as a distinguished high-tech enterprise specializing in electrical integration. With an expert R&D, production, and service team boasting over 15 years of excellence in the industry, we are committed to pioneering advancements and delivering state-of-the-art solutions.
Our impressive product lineup encompasses high-voltage solid-state soft starters, sophisticated capacitor cabinets, advanced high and low voltage switchgear, cutting-edge gas-insulated switchgear, and robust substations. These products are integral to a diverse array of industries, including energy and chemicals, metal smelting operations, electric power grids, industrial manufacturing, academia, medical and pharmaceutical advancements, municipal commerce, water conservancy projects, hydropower initiatives, road transportation systems, and both commercial and residential infrastructures. Our solutions power and enhance operational efficiency across these varied sectors.
In our pursuit of excellence, we champion technological innovation and the philosophy of 'smart manufacturing,' continuously attracting top-tier technical talent to elevate our core competencies. Our mission is to offer unparalleled service and forge a stellar brand in the industry. Since inception, our journey has been one of relentless progress, advancing from foundational beginnings to industry prominence. We steadfastly uphold the ethos of 'quality as the cornerstone' and 'reputation-driven growth,' consistently aiming for superior management efficiency. Through adherence to 'technology-led strategy, standardized management, unmatched quality, and complete customer satisfaction,' we enhance our market edge and aim to excel in China's power transmission and distribution sectors with ever-accelerating goals. Integrity is our bedrock, quality our hallmark, service our pinnacle, and customer satisfaction our perpetual commitment. We tirelessly pursue excellence, fostering innovation to build a brand synonymous with trust. Your support fuels our ambition. We extend heartfelt gratitude to our valued clients, old and new, and eagerly anticipate forging a future of shared success with Senhang Technology as we pave the way towards a brighter tomorrow.
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.