Product Description
Oil Immersed Series Transformer:
Introducing the revolutionary S11-M series fully sealed oil-immersed power transformer, precisely crafted and meticulously produced by Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer distinguishes itself with its impressive hallmark features: exceptionally low energy loss, whisper-quiet operation, and unparalleled efficiency. It stands as a beacon of energy conservation, dramatically reducing pollution and minimizing environmental impact. Unlike traditional oil-immersed transformers, this state-of-the-art model eliminates the need for an oil conservator. Through the ingenious elasticity of the corrugated oil tank, it autonomously regulates and compensates for oil volume fluctuations, maintaining a perfectly sealed environment that shields the transformer from air exposure. This transformative feature effectively prevents oil degradation, significantly extends insulation lifespan, and dramatically enhances operational reliability—all without the need for routine maintenance during standard use.
1. Power Capacity: Ranging from 25-2500KVA, offering options for 24KV, 30KV, 33KV, 35KV, 36KV, and further customization to precisely meet specific customer needs 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Offers both Off-circuit and On-load options
4. Tapping Range: Choose from ±5%, 2x2.5%, ±4x2.5%
5. Frequency: Options for either 50Hz or 60Hz
6. Phases: Available in Three-phase or single-phase configurations
7. Connection Symbol: Dyn11, Yyn0 (or fully customizable to suit your specifications)
8. Short-circuit Impedance: Features Standard Impedance
9. Operational Conditions: Designed for altitudes not exceeding 1000m, and ambient temperatures below 40°C. Should these conditions not be met, necessary parameter adjustments in line with standard protocols will be made.
All adjustments will strictly adhere to industry standards.
Power Capacity: Ranging between 25-2500KVA
Voltage Levels: Choose from 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit or On-load options
Tapping Range: Options include ±5%, ±2x2.5%, ±4x2.5%
Frequency Options: Select from 50Hz or 60Hz
Phases: Available in Three-phase or single-phase
Connection Symbol: Dyn11, Yyn0 (customizable upon request)
Short-circuit Impedance: Comes with Standard Impedance
Operational Conditions: Suitable for altitudes not exceeding 1000m, with ambient temperatures not exceeding 40°C
Should conditions deviate from the norm, necessary parameter adjustments will be implemented, strictly adhering to standard guidelines.
The fully sealed oil-immersed power transformer, a masterpiece of innovation by Chaotai Power, excels with exceptionally low energy loss, silent operation, and superior efficiency. It serves as an outstanding energy-saving solution that profoundly reduces pollution.
Unlike conventional oil-immersed transformers, this fully sealed design dispenses with the need for an oil conservator. It expertly manages oil volume changes through the elastic capabilities of the corrugated oil tank sheet, ensuring the transformer remains insulated from air exposure. This critical feature not only prevents oil deterioration, delays insulation aging, but also significantly enhances reliability, eliminating the necessity for regular 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 brilliance in the ever-evolving realm of electrical integration. As a distinguished high-tech enterprise, we take pride in our exceptional R&D, production, and service teams, bolstered by over 15 years of rich industry experience. Our steadfast dedication to achieving unparalleled excellence positions us as pioneers of innovation.
Within our expansive and diverse product portfolio, you will find cutting-edge innovations such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These extraordinary products are vital across a multitude of industries, including energy, chemical sectors, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their applications extend far beyond, serving both commercial and residential needs with unparalleled efficiency. We take tremendous pride in shaping a brighter future with our revolutionary solutions.
Driven by a philosophy rooted in relentless technological progress and 'smart manufacturing,' we are passionately committed to fostering a culture of excellence, integrating top-tier technical talent to enhance our core strengths. This strategic focus guarantees that we deliver unmatched service value to our valued clients. Our extraordinary growth journey is a testament to our ethos: evolving from our origins to industry leadership through unwavering dedication. Our business strategy is firmly grounded in innovation, with an unyielding commitment to quality as the cornerstone of our survival, market reputation as the key to development, and management efficiency as the engine of profitability. We are devoted 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 heighten our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that reach unprecedented heights. Core values of integrity, unmatched quality, exceptional service, and customer satisfaction drive us. We relentlessly pursue excellence, continuously innovating to build a brand synonymous with trust. The gratitude of our customers fuels our ambition. We extend our deepest thanks to our loyal customers, both new and long-standing, and warmly invite you to join Senhang Technology on a shared journey towards a radiant 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.
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