Product Description



Oil Immersed Series Transformer:
Introducing the extraordinary S11-M series, an epitome of engineering excellence by Zhejiang Chaotai Complete Equipment Co., Ltd. This fully sealed oil-immersed power transformer stands out with its groundbreaking features of minimal energy consumption, low operational noise, and outstanding efficiency. As an exemplary energy solution, it significantly mitigates environmental pollution. Unlike traditional oil-immersed transformers, this sophisticated model eliminates the need for an oil conservator. With its innovative design, it autonomously adapts to oil volume changes through the corrugated oil tank's flexibility, effectively sealing the transformer from air exposure. This cutting-edge feature prevents oil degradation, delays insulation aging, and greatly enhances operational reliability, all while doing away with the need for regular maintenance.
1. Power Capacity: Offering a broad range from 25-2500KVA, with configurations for 24KV, 30KV, 33KV, 35KV, 36KV, and tailor-made options to satisfy customer specifications 2. Voltage Level: Delivered in options of 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Available in both Off-circuit or On-load variations
4. Tapping Range: Flexible configurations at ±5%, 2x2.5%, or ±4x2.5%
5. Frequency: Choices between 50Hz or 60Hz
6. Phases: Offered in Three-phase or single-phase configurations
7. Connection Symbol: Options include Dyn11, Yyn0, with customization available upon request
8. Short-circuit Impedance: Engineered with Standard Impedance to meet industry benchmarks
9. Operational Conditions: Optimized for altitudes not exceeding 1000m and ambient temperatures below 40°C. Deviations from these conditions will prompt adjustments in parameters following standard industry protocols.
All necessary adjustments will adhere strictly to industry standards to ensure optimal performance.
Power Capacity: A versatile range spanning from 25-2500KVA
Voltage Levels: Extensive range from 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Choice between Off-circuit or On-load options
Tapping Range: Configurable at ±5%, ±2x2.5%, ±4x2.5% to suit various applications
Frequency Options: Available in flexible 50Hz or 60Hz modes
Phases: Available options include Three-phase or single-phase configurations
Connection Symbol: Customizable as Dyn11, Yyn0, with further customization options on demand
Short-circuit Impedance: Designed with Standard Impedance for reliable performance
Operational Conditions: Designed for altitudes not exceeding 1000m, with ambient temperature thresholds set at no more than 40°C
In scenarios where conditions vary, parameter adjustments will be made in strict adherence to standard guidelines.
This fully sealed oil-immersed power transformer, a marvel of innovation from Chaotai Power, is expertly crafted for low energy loss, whisper-quiet operation, and extraordinary efficiency. It serves as a premier energy-saving solution, vastly reducing pollution.
Unlike conventional oil-immersed transformers, this fully sealed design eradicates the need for an oil conservator. It deftly manages oil volume variations using 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 enhances reliability and eradicates 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 testament to the forefront of technological advancement and innovation within the electrical integration industry. As a celebrated high-tech enterprise, we boast a dedicated team specializing in R&D, production, and service, all supported by an illustrious history of over 15 years of invaluable industry expertise. Our unyielding pursuit of excellence not only underscores our leadership in innovation but also sets new benchmarks for the entire industry.
Our comprehensive and sophisticated product lineup showcases trailblazing solutions including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These indispensable products serve a broad spectrum of industries such as energy, chemical sectors, metal smelting, electric power grids, and industrial manufacturing. Beyond these areas, we make substantial contributions to academia, healthcare, municipal commerce, water management, hydropower, and road traffic, catering to both commercial and residential needs. Our dedication to empowering the future through transformative solutions ensures a significant impact across these crucial sectors.
Guided by a philosophy of relentless technological advancement and intelligent manufacturing, we are steadfast in nurturing a culture of excellence through the integration of top-tier technical talents and innovative strategies. This strategic approach fortifies our core competencies, guaranteeing unparalleled service value for our clients. Our journey from modest beginnings to industry leadership is a reflection of our core values: unwavering dedication and innovation. Our business strategy is firmly rooted in the belief that quality is essential for survival, market reputation is key to development, and management efficiency drives profitability. Our promise is to utilize 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the foundational pillars of our quality and talent management initiatives. Our strategic vision is to enhance our market competitiveness and serve China's electric power and grid transmission and distribution sectors with aspirations that aim higher, reach further, and achieve more. Integrity, unmatched quality, exceptional service, and customer satisfaction are central to our values. Our relentless pursuit of excellence fuels perpetual innovation, establishing our brand as synonymous with trust. The support of our valued customers propels our ambition. We extend sincere gratitude to our loyal customers, both new and longstanding, and warmly invite you to join Zhejiang Chaotai in a shared journey 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.