Product Description
Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil-immersed power transformer expertly crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This state-of-the-art transformer is engineered to deliver exceptional performance with its low loss, minimal noise, and high efficiency – all contributing to outstanding energy-saving capabilities while significantly reducing environmental impact. What sets this transformer apart is its innovative design that eliminates the oil conservator, allowing the oil volume changes to be seamlessly adjusted and compensated through the flexible corrugated sheet of the oil tank. By being hermetically sealed from air exposure, this transformer not only prevents oil deterioration and insulation aging but also enhances operational reliability and eliminates the need for maintenance under normal conditions.
1. Power Capacity: Ranging from 25 to 2500KVA, available in 24KV, 30KV, 33KV, 35KV, 36KV, and customized options to meet your specific requirements. 2. Voltage Level: Choose from a variety of voltage levels including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Available with Off-circuit or On-load options.
4. Tapping Range: Flexible range with options of ±5%, 2 x ±2.5%, and 4 x ±2.5% to accommodate varying needs.
5. Frequency: Versatile usage with both 50Hz and 60Hz compatibility.
6. Phases: Adaptable to either three-phase or single-phase applications.
7. Connection Symbol: Available in Dyn11, Yyn0 (or customized as per request).
8. Short-circuit Impedance: Adheres to standard impedance specifications for reliable performance.
Altitude conditions not exceeding 1000m, and ambient temperature not surpassing 40°C. If these conditions are not met,
we will tailor parameters in accordance with industry standards to ensure optimal functionality.
Power Capacity: Engineered to support capacities from 25KVA to an impressive 2500KVA.
Voltage Levels: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV to suit a range of applications.
Voltage Level Options:
Type of Voltage Regulation: Designed with both Off-circuit and On-load regulation options for maximum flexibility.
Tapping Range: Tailored to meet your needs with options of ±5%, ±2 x 2.5%, and ±4 x 2.5%.
Frequency Compatibility: Accommodates both 50Hz and 60Hz frequencies to fit diverse requirements.
Phases: Suitable for both three-phase and single-phase configurations.
Connection Symbol: Available in Dyn11, Yyn0 configurations (or as specified).
Short-circuit Impedance: Maintains standard impedance levels for dependable operation.
Altitude and Temperature: Designed for conditions not exceeding 1000m in altitude and 40°C in ambient temperature.
For unmatched adaptability, if these conditions are not met, our parameters will be modified in alignment with standard guidelines.
Zhejiang Chaotai's fully sealed oil-immersed power transformer boasts superior features including low loss, reduced noise, and heightened efficiency, ensuring excellent energy-saving performance and minimal environmental impact.
In contrast to conventional oil-immersed transformers, our fully sealed design removes the oil conservator, allowing for automatic oil volume adjustment via the corrugated sheet's elasticity. This air-isolated structure prevents and decelerates oil degeneration and insulation wear, enhancing operational reliability and eliminating the need for maintenance during normal usage.
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 proud as a high-tech enterprise dedicated to innovations in electrical integration. With a talented team specializing in research, development, production, and service, our expertise spans over 15 transformative years in the industry.
Our portfolio is rich with dynamic solutions including high-voltage solid-state soft starters, sophisticated capacitor cabinets, robust high and low voltage switchgear, cutting-edge gas-insulated switchgear, and innovative substations. Our products seamlessly integrate into diverse sectors such as energy, chemical industries, metal smelting, power grids, industrial manufacturing, academic institutions, healthcare, municipal commerce, water conservancy, hydropower, road traffic, and vibrant commercial and residential landscapes.
At the heart of Zhejiang Chaotai's mission is a commitment to technological innovation and the ethos of 'smart manufacturing.' By attracting top-tier technical talent, we enhance our core competitiveness, delivering exceptional value and striving to establish an industry-leading brand. Our journey reflects a story of relentless progress—evolving from humble beginnings to crafting masterpieces of excellence. Our business ethos centers on quality-driven survival, market-focused growth, reputation-fueled development, and efficiency through strategic management. We are resolute in upholding 'technology as the guide, standardized management, outstanding quality, and ultimate customer satisfaction.' This philosophy underpins our quality and technical talent management, empowering us to elevate our market position and serve China's power distribution and transmission sectors with ever-ambitious goals. Integrity forms our foundation, quality is our hallmark, service is our distinction, and customer satisfaction is our unwavering commitment. We pursue excellence, embrace continuous innovation, and are dedicated to building a brand synonymous with trust. Your recognition fuels our passion, and we extend our heartfelt gratitude to our loyal customers. Senhang Technology is eager and ready to collaborate with you, forging a brighter, more prosperous future together.
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.
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