Product Description
Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, crafted with precision and care by the experts at Zhejiang Chaotai Complete Equipment Co., Ltd. This impressive transformer is distinguished by its ultra-low energy loss, serene operation, and unparalleled efficiency. As a beacon of energy preservation, it substantially curtails pollution and shrinks its ecological footprint. Breaking away from conventional oil-immersed transformers, this advanced model negates the need for an oil conservator. Thanks to the innovative elasticity of the corrugated oil tank, it naturally adapts and adjusts to oil volume changes, preserving a completely sealed environment that protects the transformer from atmospheric exposure. This revolutionary feature effectively shields against oil deterioration, dramatically extends insulation longevity, and significantly boosts operational dependability—all while eliminating the need for routine maintenance during regular operation.
1. Power Capacity: Spanning from 25-2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and further customization to cater to specific customer requirements 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Provides both Off-circuit and On-load options
4. Tapping Range: Selections include ±5%, 2x2.5%, ±4x2.5%
5. Frequency: Choose between 50Hz or 60Hz
6. Phases: Offered in Three-phase or single-phase variants
7. Connection Symbol: Dyn11, Yyn0 (or fully customizable to your specifications)
8. Short-circuit Impedance: Comes with Standard Impedance
9. Operational Conditions: Optimized for altitudes not surpassing 1000m, and ambient temperatures below 40°C. Should these conditions be exceeded, necessary parameter adjustments will be made according to standard procedures.
All modifications will be executed in strict adherence to industry standards.
Power Capacity: Extending across 25-2500KVA
Voltage Levels: Selections include 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit or On-load variations
Tapping Range: Choose from ±5%, ±2x2.5%, ±4x2.5%
Frequency Options: Choose between 50Hz or 60Hz
Phases: Offered in Three-phase or single-phase formats
Connection Symbol: Dyn11, Yyn0 (customizable upon request)
Short-circuit Impedance: Equipped with Standard Impedance
Operational Conditions: Engineered for altitudes not exceeding 1000m, with ambient temperatures not surpassing 40°C
If conditions diverge from the standard, necessary parameter adjustments will be executed, adhering to established guidelines.
The fully sealed oil-immersed power transformer, a testament to Chaotai Power's innovation, excels with impressively low energy loss, quiet operation, and exceptional efficiency. It stands as a superior energy-saving solution, dramatically reducing pollution.
Contrary to traditional oil-immersed transformers, this fully sealed design dispenses with the oil conservator. It adeptly manages oil volume variations through the elastic properties of the corrugated oil tank sheet, ensuring the transformer remains safeguarded from air. This pivotal feature not only prevents oil degradation and delays insulation aging but also significantly bolsters reliability, removing 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 technological prowess in the ever-evolving realm of electrical integration. As a leading high-tech corporation, we proudly present a dynamic team of highly skilled professionals in research, development, production, and service, fortified by more than 15 years of invaluable industry expertise. Our steadfast commitment to achieving unparalleled excellence sets us apart as pioneers in innovation.
Our comprehensive and diverse product lineup showcases cutting-edge innovations, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These exceptional products have become indispensable across various sectors such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic, extending their impact to both commercial and residential applications. We take immense pride in empowering the future with our transformative solutions.
Driven by a philosophy of relentless technological advancement and 'smart manufacturing,' we are devoted to fostering a culture of excellence, seamlessly integrating top-tier technical talents. This strategic approach enhances our core strengths, ensuring we consistently deliver unparalleled service value to our clients. Our remarkable growth journey is a testament to our ethos: evolving from inception to industry leadership through unwavering dedication. Our business strategy is firmly rooted in innovation, with an unwavering commitment to quality as the cornerstone of our existence, market reputation as the pathway to growth, and management efficiency as the catalyst for profitability. We are dedicated 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 is to bolster our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that reach unprecedented heights. Integrity, unmatched quality, exceptional service, and customer satisfaction form the core of our values. We persistently strive for excellence, continuously innovating to establish a brand that is synonymous with trust and reliability. The appreciation of our customers fuels our ambition. We express our deepest gratitude to our loyal customers, both new and longtime supporters, and warmly invite you to join us on a shared journey with Senhang Technology 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.
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