Product Description



Oil Immersed Series Transformer:
Introducing Zhejiang Chaotai Complete Equipment Co., Ltd.'s groundbreaking marvel—the S11-M series fully sealed oil-immersed power transformer. Meticulously engineered for excellence, this exceptional transformer promises remarkably low energy loss, whisper-quiet operations, and stellar efficiency. It stands as a testament to energy conservation, drastically cutting pollution and significantly lessening environmental footprints. A leap ahead of conventional oil-immersed transformers, this state-of-the-art model dispenses with the traditional oil conservator. Its innovative design features a cleverly conceived corrugated oil tank that adeptly self-regulates and compensates for oil volume variations, ensuring a perfectly sealed environment that safeguards the transformer from air exposure. This cutting-edge feature effectively halts oil degradation, remarkably extends the lifespan of insulation materials, and profoundly enhances operational reliability—all achieved with no regular maintenance required under standard conditions.
1. Power Capacity: Offering a versatile range from 25KVA to 2500KVA, with adaptable options including 24KV, 30KV, 33KV, 35KV, 36KV, and bespoke configurations tailored precisely to customer specifications. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, ensuring wide-ranging adaptability.
4. Tapping Range: Delivers a diverse selection of ±5%, 2x2.5%, or ±4x2.5% to meet varied power demands with precision.
5. Frequency: Available in both 50Hz and 60Hz, accommodating regional standards seamlessly.
6. Phases: Choose from both Three-phase and single-phase configurations to suit a broad spectrum of applications.
7. Connection Symbol: Options include Dyn11, Yyn0, or fully customize to your exact specifications with ease.
8. Short-circuit Impedance: Equipped with Standard Impedance for unwavering and reliable performance.
9. Operational Conditions: Expertly crafted for altitudes reaching up to 1000m and ambient temperatures below 40°C. Should conditions vary, parametric adjustments will be executed as per standard protocols to ensure optimal functionality.
All modifications will adhere rigorously to industry standards, securing the highest level of performance excellence.
Power Capacity: Extends from 25-2500KVA, accommodating diverse energy requirements effortlessly.
Voltage Levels: Available in a cohesive range that includes 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, offering unparalleled adaptability.
Voltage Level Overview:
Type of Voltage Regulation: Features both Off-circuit and On-load variants for flexible and adaptable voltage control.
Tapping Range: Offers configurations like ±5%, ±2x2.5%, ±4x2.5%, expertly aligning with specific needs.
Frequency Options: Select from 50Hz or 60Hz, matching local and regional standards effortlessly.
Phases: Available in both Three-phase and single-phase, supporting a diverse range of versatile applications.
Connection Symbol: Standard selections include Dyn11, Yyn0, with the option for fully customizable configurations.
Short-circuit Impedance: Incorporates Standard Impedance, ensuring steady and dependable operation.
Operational Conditions: Designed for seamless function at altitudes up to 1000m and temperatures below 40°C.
In instances where operational conditions deviate, parameter adjustments will be implemented in strict accordance with standard guidelines.
The fully sealed oil-immersed power transformer epitomizes Chaotai Power's innovative prowess. It excels with impressively low energy loss, quiet operations, and outstanding efficiency. As a groundbreaking energy-saving device, it significantly curtails pollution, embodying the pinnacle of sustainable technology.
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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. is a shining beacon of technological expertise in the dynamic realm of electrical integration. Celebrated as a high-tech enterprise, we are supported by an elite team specializing in research, development, production, and service, with a formidable 15-plus years of industry knowledge. Our unwavering commitment to exceptional excellence distinguishes us as trailblazers of innovation.
Our extensive and diverse product portfolio features state-of-the-art innovations, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These remarkable products are vital to a wide array of sectors such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. They are applicable in both commercial and residential domains. We proudly power the future with our groundbreaking solutions.
Guided by a philosophy of relentless technological advancement and 'smart manufacturing,' we are passionately committed to cultivating a culture of excellence by integrating premier technical talents. This strategic focus amplifies our core competencies, ensuring we consistently provide unparalleled service value to our clients. Our remarkable growth journey testifies to our ethos: evolving from inception to industry leadership through unwavering dedication. Our business strategy is firmly anchored in innovation, with an unwavering commitment to quality as the cornerstone of our endurance, market reputation as our pathway to growth, and management efficiency as the engine for profitability. We are committed to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision aims to elevate our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that reach new heights. Integrity, unmatched quality, exceptional service, and customer satisfaction are at the core of our values. We relentlessly pursue excellence, continuously innovating to build a brand synonymous with trust. The appreciation from our customers propels our ambition. We sincerely extend our deepest gratitude to our loyal customers, both new and long-standing, and warmly invite you to join us in a shared journey with Senhang Technology 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.