Product Description



Oil Immersed Series Transformer:
Introducing the exceptional S11-M series, a fully sealed oil-immersed power transformer, meticulously crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This remarkable transformer exemplifies peerless attributes of minimal energy consumption, low operational noise, and exceptional efficiency. As a cutting-edge energy solution, it significantly reduces environmental pollution. Diverging from conventional oil-immersed models, this advanced design eliminates the need for an oil conservator. Its intelligent configuration autonomously accommodates oil volume changes through the adaptive flexibility of the corrugated oil tank, effectively sealing the transformer from air exposure. This state-of-the-art feature safeguards against oil degradation, mitigates insulation aging, and considerably boosts operational reliability while eradicating the necessity for routine maintenance.
1. Power Capacity: With a range from 25-2500KVA, options include 24KV, 30KV, 33KV, 35KV, and 36KV, all customizable to fulfill customer specifications 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Offered in both Off-circuit and On-load variations
4. Tapping Range: Configurable at ±5%, 2x2.5%, or ±4x2.5%
5. Frequency: Options available for either 50Hz or 60Hz
6. Phases: Available in both Three-phase and single-phase configurations
7. Connection Symbol: Available as Dyn11, Yyn0, with customizable options as per requirements
8. Short-circuit Impedance: Engineered with Standard Impedance for reliable performance
9. Operational Conditions: Ideally suited for altitudes up to 1000m and ambient temperatures under 40°C. If conditions are not met, parameter adjustments will adhere to industry-standard protocols.
All necessary adjustments will adhere strictly to industry standards.
Power Capacity: Available from 25-2500KVA
Voltage Levels: Ranging from 10KV, 11KV, 13.8KV, up to 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Offered in both Off-circuit and On-load options
Tapping Range: Available at ±5%, ±2x2.5%, ±4x2.5%
Frequency Options: Offered in 50Hz or 60Hz modes
Phases: Offered in Three-phase or single-phase configurations
Connection Symbol: Configurable as Dyn11, Yyn0, with customization available upon request
Short-circuit Impedance: Designed with Standard Impedance for optimal performance
Operational Conditions: Engineered for altitudes up to 1000m, with ambient temperatures not exceeding 40°C
In cases where conditions differ, precise parameter adjustments will be executed in strict adherence to standard guidelines.
This fully sealed oil-immersed power transformer, an innovation marvel from Chaotai Power, is engineered for minimized energy loss, whisper-quiet operation, and outstanding efficiency. It serves as a leading energy-saving solution, considerably reducing pollution.
Distinct from traditional oil-immersed transformers, this fully sealed model eliminates the need for an oil conservator. It expertly manages oil volume changes with the elasticity of the corrugated oil tank sheet, ensuring the transformer is effectively isolated from air. This critical feature not only prevents oil degradation and insulation aging but also enhances reliability, 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 shining beacon of innovation and technological prowess in the dynamic field of electrical integration. As a prestigious high-tech enterprise, our company is celebrated for its unwavering dedication to research, development, and unparalleled service, all fortified by an impressive legacy spanning over a remarkable 15 years. Our steadfast commitment to excellence solidifies our leadership in innovation, consistently setting industry benchmarks and pushing boundaries.
Our expansive and cutting-edge product portfolio offers groundbreaking solutions like high-voltage solid-state soft starters, sophisticated capacitor cabinets, versatile high and low voltage switchgear, state-of-the-art gas-insulated switchgear, and robust substations. These vital products serve as the backbone across a multitude of industries, extending their influence from energy and chemical applications to metal smelting, electric power grids, and industrial manufacturing realms. We proudly contribute to academia, healthcare, municipal commerce, water management, hydropower, and road traffic, impacting both commercial and residential sectors profoundly. We are committed to empowering the future with our revolutionary solutions, making a lasting impact across these crucial industries.
Rooted in a philosophy of relentless technological progress and 'smart manufacturing,' we are devoted to cultivating a culture of excellence by seamlessly integrating elite technical talents and pioneering strategies. This strategic dedication enhances our core competencies, ensuring that we deliver unmatched service value to our esteemed clients. Our growth narrative is a testament to our core values: rising from modest beginnings to industry vanguard through unyielding dedication and innovation. Our business strategy is firmly anchored on quality as the bedrock of survival, market reputation as the pathway to growth, and management efficiency as the cornerstone of profitability. We are committed to harnessing 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management endeavors. Our strategic vision is to amplify our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that aim higher, reach further, and achieve more. Integrity, unparalleled quality, exceptional service, and customer satisfaction lie at the core of our values. Our relentless pursuit of excellence drives us to continuously innovate, cementing our brand as synonymous with trust. The recognition from our valued customers fuels our ambition. We express our heartfelt gratitude to our loyal customers, both new and longstanding, and warmly invite you to join Zhejiang Chaotai on a shared journey towards a brighter and more prosperous 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.