Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series oil-immersed power transformer, an epitome of cutting-edge engineering by Zhejiang Chaotai Complete Equipment Co., Ltd. This state-of-the-art transformer is acclaimed for its exceptionally low energy consumption, whisper-quiet performance, and unparalleled efficiency. Embodying the essence of energy conservation, it significantly reduces pollution and minimizes environmental footprint. Diverging from traditional oil-immersed transformers, this advanced model eliminates the need for an oil conservator. Its innovative corrugated oil tank design autonomously adjusts to oil volume changes, ensuring a perfectly sealed system that shields the transformer from air infiltration. This pioneering feature not only prevents oil degradation but also dramatically extends the lifespan of insulation materials, thereby enhancing operational reliability—all while requiring no routine maintenance under standard conditions.
1. Power Capacity: Offering a wide range from 25-2500KVA, with diverse options such as 24KV, 30KV, 33KV, 35KV, 36KV, alongside bespoke configurations tailored to meet specific customer requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV, ensuring broad adaptability. 3. Type of Voltage Regulation: Features both Off-circuit and On-load options for flexible functionality.
4. Tapping Range: Offers an array of selections including ±5%, 2x2.5%, or ±4x2.5% to cater to diverse power requirements.
5. Frequency: Available in both 50Hz and 60Hz, ensuring compatibility with global standards.
6. Phases: Offered in both Three-phase and single-phase configurations to accommodate various applications.
7. Connection Symbol: Standard configurations include Dyn11, Yyn0, or customize to your exact specifications with ease.
8. Short-circuit Impedance: Crafted with Standard Impedance, guaranteeing reliable performance.
9. Operational Conditions: Expertly designed for altitudes up to 1000m and ambient temperatures below 40°C. Should these parameters vary, adjustments will be made in accordance with standard protocols.
All modifications adhere strictly to industry standards, ensuring peak performance and reliability.
Power Capacity: Spanning a robust range from 25-2500KVA to cater to varied energy needs.
Voltage Levels: Covering a spectrum from 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, to 36KV, providing extensive adaptability.
Voltage Level Overview:
Type of Voltage Regulation: Available in both Off-circuit and On-load variants for versatile control options.
Tapping Range: Configurations such as ±5%, ±2x2.5%, ±4x2.5% are offered to meet precise requirements.
Frequency Options: Select from either 50Hz or 60Hz to align with local standards.
Phases: Available in both Three-phase and single-phase to suit numerous applications.
Connection Symbol: Choose from standard options like Dyn11, Yyn0, with fully customizable configurations at your disposal.
Short-circuit Impedance: Equipped with Standard Impedance for assured and dependable operation.
Operational Conditions: Engineered for optimal performance at altitudes not exceeding 1000m and temperatures below 40°C.
Should operational conditions diverge, necessary adjustments will be made following standard guidelines to ensure consistent performance.
The fully sealed oil-immersed power transformer, a testament to Chaotai Power's pioneering innovation, excels with exceptionally low energy loss, silent operation, and superior efficiency. It stands as a formidable energy-saving solution that significantly reduces pollution.
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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 proudly as a beacon of technological mastery in the ever-evolving field of electrical integration. As a recognized high-tech enterprise, our esteemed team, armed with over 15 years of unrivaled industry experience, pioneers the forefront of research, development, production, and service. Our steadfast dedication to groundbreaking innovation distinguishes us as trailblazers, perpetually advancing the boundaries of excellence.
Our extensive product portfolio showcases our commitment to leading-edge innovation. We offer a diverse range of products including high-voltage solid-state soft starters, capacitor cabinets, versatile high and low voltage switchgear, sophisticated gas-insulated switchgear, and modern substations. These outstanding products are essential across a wide array of sectors, encompassing energy, chemical industries, metal smelting, electric grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Catering to both commercial and residential demands, we are empowering the future with our pioneering solutions.
Our philosophy of 'smart manufacturing' and relentless pursuit of technological advancement propels us to nurture a culture of excellence. By integrating elite technical talents, we augment our core capabilities, consistently delivering exceptional value to our clients. Our extraordinary growth journey exemplifies our ethos of transforming initial ideas into industry leadership through unwavering dedication. Innovation is the cornerstone of our strategy, with quality as the foundation of our enduring success, market reputation as our path to growth, and management efficiency as the engine of profitability. Our devotion to 'technology as the guide, standardized management, superior quality, and customer satisfaction' stands as the pillars of our quality and talent management. We aim to elevate market competitiveness, serving China's electric power and grid sectors with visionary ambition. Integrity, unmatched quality, exceptional service, and customer satisfaction form the essence of our core values. We are committed to excellence, continuously innovating to build a brand of trustworthiness. Our customers' appreciation fuels our aspirations, and we express heartfelt gratitude to our loyal patrons, both new and long-standing. Join us with Senhang Technology on a shared journey towards a brighter 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.