Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series, a fully sealed oil-immersed power transformer ingeniously crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. Experience a transformer with exceptional characteristics like ultra-low energy consumption, whisper-quiet operation, and remarkable efficiency. This serves as a superior energy solution, significantly reducing environmental impact. Unlike traditional oil-immersed models, this advanced transformer eliminates the need for an oil conservator. Its innovative design seamlessly adapts to oil volume changes through the flexible corrugated oil tank, effectively sealing the unit from air exposure. This cutting-edge feature prevents oil degradation, reduces insulation aging, and dramatically enhances operational reliability, while eradicating the need for maintenance during regular operations.
1. Power Capacity: Ranges from 25-2500KVA, with adaptable options for 24KV, 30KV, 33KV, 35KV, 36KV, tailored to customer needs 2. Voltage Level: Available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Offered in both Off-circuit or On-load variations, catering to diverse requirements
4. Tapping Range: Custom-configured at ±5%, 2x2.5%, or ±4x2.5% to suit specific application needs
5. Frequency: Choose between 50Hz or 60Hz for optimal performance
6. Phases: Available in versatile Three-phase or single-phase configurations, accommodating various system designs
7. Connection Symbol: Offered as Dyn11, Yyn0, with the flexibility of customization options as required
8. Short-circuit Impedance: Designed with Standard Impedance for reliable performance
9. Operational Conditions: Optimized for altitudes up to 1000m and ambient temperatures below 40°C. If these conditions are not met, parameter adjustments will align with industry protocols.
All necessary adjustments will strictly adhere to rigorous industry standards, ensuring optimal performance.
Power Capacity: Spanning from 25-2500KVA to meet diverse energy demands
Voltage Levels: Encompassing 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV for flexible application
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit or On-load options, providing adaptability for various operational requirements
Tapping Range: Offered at ±5%, ±2x2.5%, ±4x2.5% for precise voltage control
Frequency Options: Available in 50Hz or 60Hz modes, ensuring compatibility with global standards
Phases: Options include highly adaptable Three-phase or single-phase configurations
Connection Symbol: Configurable as Dyn11, Yyn0, with extensive customization options available upon request
Short-circuit Impedance: Engineered with Standard Impedance for robust reliability
Operational Conditions: Designed for altitudes not exceeding 1000m, with ambient temperatures not surpassing 40°C
In scenarios where conditions differ, we ensure that necessary parameter adjustments are executed with precision, adhering to industry-standard guidelines.
This fully sealed oil-immersed power transformer, an engineering marvel from Chaotai Power, is designed for minimal energy loss, ultra-silent operation, and superior efficiency. It stands as an elite energy-saving solution, significantly curbing pollution.
Unlike traditional oil-immersed transformers, this fully sealed design forgoes the oil conservator. It skillfully accommodates oil volume variations with the elasticity of the corrugated oil tank sheet, ensuring the transformer remains isolated from air. This vital feature not only prevents oil degradation and delays insulation aging but also boosts reliability and removes 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 beacon of excellence and a paragon of cutting-edge innovation in the electrifying world of electrical integration. Our distinguished stature as a high-tech enterprise is bolstered by a dedicated team of R&D devotees, production virtuosos, and service connoisseurs, all harmonized by a rich legacy of over 15 years of invaluable industry expertise. This unwavering dedication to excellence fortifies our position as a trailblazer in innovation, continually setting new industry benchmarks that others aspire to reach.
Explore our expansive and innovative product portfolio, where pioneering solutions meet industry demands. Our offerings include high-voltage solid-state soft starters, capacitor cabinets, and both high and low voltage switchgear, complemented by gas-insulated switchgear and substations. These pivotal products are instrumental across a broad spectrum of sectors, from the bustling energy and chemical industries to the dynamic fields of metal smelting, electric power grids, and industrial manufacturing. Our influence extends further, touching academia, healthcare, municipal commerce, water management, hydropower, and road traffic, impacting both commercial and residential landscapes. Proudly, we are architects of the future, crafting transformative solutions that resonate deeply across these essential sectors.
Embedded in our ethos is a philosophy of relentless technological progression and 'smart manufacturing.' We are devoted to cultivating a culture of excellence by integrating elite technical talent and innovative strategies. This strategic dedication enhances our core competencies, guaranteeing unparalleled service value for our clients. Our growth narrative is a testament to our core values: rising from modest origins to industry leadership through steadfast dedication and innovation. Our business strategy remains resolute, focusing on quality as the bedrock of survival, reputation as the pathway to development, and efficiency in management as the linchpin of profitability. We vow to leverage 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management ethos. Our strategic vision aims to elevate our market competitiveness, serving China's electric power and grid transmission sectors with ever-expanding horizons. Integrity, unparalleled quality, exceptional service, and unwavering customer satisfaction form the nucleus of our values. Our relentless pursuit for perfection propels perpetual innovation, establishing our brand as synonymous with trust and reliability. The recognition from our valued customers fuels our ambition. We extend heartfelt gratitude to our cherished customers, both new and seasoned, and warmly invite you to embark on a shared journey towards a luminous tomorrow with Zhejiang Chaotai.
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.