Product Description



Oil Immersed Series Transformer:
Introducing the extraordinary S11-M series by Zhejiang Chaotai Complete Equipment Co., Ltd., a pioneering fully sealed oil-immersed power transformer that exemplifies engineering excellence. Designed for superior performance, this remarkable transformer boasts minimal energy consumption, whisper-quiet operation, and exceptional efficiency. It is a leading-edge solution, significantly reducing environmental pollution. Distinct from traditional oil-immersed models, this advanced iteration eliminates the need for an oil conservator, intelligently adapting to oil volume changes through a flexible corrugated oil tank. This innovative design keeps the transformer completely sealed from air, preventing oil degradation, delaying insulation aging, and notably boosting operational reliability. Best of all, it requires no routine maintenance, ensuring seamless and uninterrupted operations.
1. Power Capacity: Flexibly ranges from 25-2500KVA, with adaptable options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable as per client requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV to suit diverse needs. 3. Type of Voltage Regulation: Offered in versatile Off-circuit or On-load variations, catering to various operational demands.
4. Tapping Range: Expertly configurable at ±5%, 2x2.5%, or ±4x2.5% to ensure optimal performance.
5. Frequency: Options available in either 50Hz or 60Hz, aligning with regional and technical specifications.
6. Phases: Available in robust Three-phase or adaptable single-phase configurations, meeting all power distribution needs.
7. Connection Symbol: Offered in configurations of Dyn11, Yyn0, with potential for customization as required to fit specific system designs.
8. Short-circuit Impedance: Meticulously designed with Standard Impedance to ensure reliability and safety.
9. Operational Conditions: Specifically designed for altitudes not exceeding 1000m and ambient temperatures below 40°C. Should these conditions not be met, we will adjust parameters following standard industry protocols to ensure optimal performance.
All necessary adjustments will be carried out in strict compliance with industry standards, guaranteeing quality and reliability.
Power Capacity: Ranging from a versatile 25-2500KVA to meet various energy demands.
Voltage Levels: Covering a comprehensive range from 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, to 36KV, ensuring adaptability for all applications.
Voltage Level Overview:
Type of Voltage Regulation: Available in adaptable Off-circuit or On-load options to suit operational needs.
Tapping Range: Offered at ±5%, ±2x2.5%, ±4x2.5% for precise control and performance.
Frequency Options: Available in either 50Hz or 60Hz modes to align with specific geolocation requirements.
Phases: Options include robust Three-phase or flexible single-phase configurations to meet diverse needs.
Connection Symbol: Configurable as Dyn11, Yyn0, with customization options available upon request to meet unique specifications.
Short-circuit Impedance: Engineered with Standard Impedance to ensure safe and efficient operations.
Operational Conditions: Designed for altitudes not exceeding 1000m, with ambient conditions not surpassing 40°C to ensure optimal performance.
In cases where conditions differ, we will perform necessary parameter adjustments in strict adherence to standard guidelines, ensuring reliable operation.
This marvel of innovation, the fully sealed oil-immersed power transformer by Chaotai Power, is crafted for exceptionally low energy loss, silent operation, and superior efficiency. It stands as a premier energy-saving solution, dramatically minimizing pollution impacts.
Unlike conventional models, this fully sealed design eliminates the oil conservator. It masterfully handles oil volume variations with the elasticity of the corrugated oil tank sheet, ensuring the transformer remains sealed from air exposure. This critical feature not only prevents oil degradation and insulation aging but also significantly enhances reliability while eliminating the need for routine 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 as a luminary in the world of electrical innovation and integration. As a distinguished high-tech enterprise, we are lauded for our robust dedication to R&D, production, and customer service. With a rich tapestry of over 15 years of industry excellence, we continuously position ourselves as trailblazers in innovation, consistently raising the bar in our sector.
Our extensive and sophisticated product portfolio is a testament to our pioneering spirit, featuring state-of-the-art solutions such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These integral products serve as the backbone for a myriad of industries, spanning energy, chemical, metal smelting, electric power grids, and industrial manufacturing. Our reach extends to academia, healthcare, municipal commerce, water management, hydropower, and road traffic, influencing both commercial and residential spaces. With pride, we are shaping the future through transformative solutions, leaving an indelible impact across these crucial sectors.
Our philosophy of unyielding technological advancement and 'smart manufacturing' propels us to foster a culture of excellence, integrating top-notch technical talents and forward-thinking strategies. This strategic dedication strengthens our core competencies, ensuring we deliver unparalleled service value to our clientele. Our evolution from modest beginnings to industry leadership is a testament to our core values: prioritizing quality as the bedrock of survival, enhancing our market reputation for growth, and optimizing management efficiency for profitability. Our commitment is to harness 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management initiatives. Our strategic vision is laser-focused on elevating our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that soar higher, reach further, and achieve more. Integrity, unrivaled quality, exceptional service, and customer satisfaction are entrenched in our values. Our relentless pursuit of excellence fuels our drive to innovate continually, establishing our brand as a beacon of trust. The recognition from our esteemed customers invigorates our ambition. We express profound gratitude to our loyal customers, both new and long-standing, and warmly invite you to join Zhejiang Chaotai on a shared journey toward 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.