Product Description



Oil Immersed Series Transformer:
Presenting the remarkable S11-M series, a state-of-the-art oil-immersed power transformer crafted with precision by Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer is characterized by its unmatched features of ultra-low energy consumption, whisper-quiet operational noise, and superior efficiency. Serving as a leading-edge energy solution, it significantly reduces environmental pollution. In contrast to traditional oil-immersed models, this advanced design eliminates the need for an oil conservator. With its intelligent design, it autonomously adapts to oil volume changes utilizing the flexibility of the corrugated oil tank, effectively shielding the transformer from air exposure. This cutting-edge attribute prevents oil degradation, slows insulation aging, and greatly enhances operational reliability, all while doing away with routine maintenance requirements.
1. Power Capacity: Offering a range of 25-2500KVA, with selections for 24KV, 30KV, 33KV, 35KV, 36KV, and customizations to align with customer specifications 2. Voltage Level: Available options at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Available in both Off-circuit and On-load variations
4. Tapping Range: Flexibly configurable at ±5%, 2x2.5%, or ±4x2.5%
5. Frequency: Choose between 50Hz or 60Hz options
6. Phases: Available configurations include Three-phase or single-phase
7. Connection Symbol: Accessible as Dyn11, Yyn0, with ample customization options as needed
8. Short-circuit Impedance: Expertly designed with Standard Impedance
9. Operational Conditions: Optimized for altitudes up to 1000m and ambient temperatures below 40°C. Should these conditions be exceeded, parameter adjustments will be made in strict adherence to industry standards.
All essential adjustments will be meticulously aligned with industry standards.
Power Capacity: Spanning from 25-2500KVA
Voltage Levels: Encompassing 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Options include Off-circuit and On-load
Tapping Range: Available at ±5%, ±2x2.5%, ±4x2.5%
Frequency Options: Offered in 50Hz or 60Hz
Phases: Available choices include Three-phase or single-phase
Connection Symbol: Configurations available as Dyn11, Yyn0, with extensive customization options upon request
Short-circuit Impedance: Expertly engineered with Standard Impedance
Operational Conditions: Designed to function at altitudes not exceeding 1000m, with ambient temperatures up to 40°C
Should conditions deviate, necessary parameter adjustments will be conducted according to standard guidelines.
This fully sealed oil-immersed power transformer, a pinnacle of innovation from Chaotai Power, boasts ultra-low energy loss, whisper-silent operation, and exceptional efficiency. It emerges as a leading energy-saving solution, significantly mitigating pollution.
Diverging from conventional oil-immersed transformers, this fully sealed design eliminates the need for an oil conservator. It adeptly accommodates oil volume changes with the elasticity of the corrugated oil tank sheet, ensuring complete isolation from air. This vital feature not only prevents oil breakdown and insulation aging but also boosts reliability and removes the necessity for regular 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 tall as a luminary in the electrical integration world, epitomizing cutting-edge technology and innovation. Celebrated as a prestigious high-tech enterprise, our company boasts dedicated R&D, production, and service teams, all of which are bolstered by a remarkable legacy of over 15 years in the industry. Our steadfast commitment to excellence not only underscores our leadership in innovation but also consistently establishes industry benchmarks, defining us as true pioneers.
Our comprehensive and sophisticated product portfolio showcases groundbreaking solutions, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These essential products are pivotal across diverse industries such as energy, chemical sectors, metal smelting, electric power grids, and industrial manufacturing. Additionally, our reach extends to academia, healthcare, municipal commerce, water management, hydropower, and road traffic, impacting both commercial and residential applications. With pride, we empower the future through transformative solutions that leave a profound mark across these crucial sectors, driving progress and efficiency.
Anchored in a relentless pursuit of technological advancement and 'smart manufacturing,' we are devoted to fostering a culture of excellence by integrating premiere technical talents and innovative strategies. This strategic focus bolsters our core competencies, ensuring unparalleled service value to our clients. Our growth journey is a testament to our core values, showcasing an evolution from modest beginnings to industry leadership driven by unwavering dedication and innovation. Our business strategy unwaveringly centers on quality as the bedrock of survivability, market reputation as the development path, and management efficiency as the profitability key. Our pledge is to wield 'technology as the guide, standardized management, superior quality, and customer satisfaction' as cornerstones of our quality and talent management endeavors. Our strategic vision is to amplify market competitiveness, serving China's electric power and grid transmission and distribution sectors with ambitions that aim higher, stretch further, and achieve more. Integrity, unmatched quality, exceptional service, and customer satisfaction lie at the core of our values. Our relentless quest for excellence fuels perpetual innovation, establishing our brand as synonymous with trust. The recognition from our esteemed customers galvanizes our ambitions. We extend heartfelt gratitude to our loyal patrons, both new and longstanding, and warmly invite you to embark on a shared journey with Zhejiang Chaotai 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.