Product Description
Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, crafted with precision and innovation by Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer is renowned for its remarkable features, including extraordinarily low energy loss, ultra-quiet performance, and unparalleled efficiency. It epitomizes energy conservation, significantly reducing pollution while minimizing environmental impact. Unlike traditional models, this advanced transformer eliminates the need for an oil conservator. Ingeniously designed with a flexible corrugated oil tank, it autonomously adjusts to oil volume changes, preserving a perfectly sealed environment that protects the transformer from air exposure. This revolutionary feature prevents oil degradation, substantially extends the insulation's lifespan, and significantly enhances operational reliability—all accomplished without the need for regular maintenance under standard conditions.
1. Power Capacity: Offering a range from 25KVA to 2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, along with customizable solutions to fulfill 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 to suit diverse needs
4. Tapping Range: Multiple options include ±5%, 2x2.5%, ±4x2.5% for precise adjustments
5. Frequency: Choose between 50Hz or 60Hz to match your application
6. Phases: Offered in Three-phase or single-phase configurations for flexibility
7. Connection Symbol: Available in Dyn11, Yyn0, with full customization to fit your unique specifications
8. Short-circuit Impedance: Equipped with Standard Impedance for consistent performance
9. Operational Conditions: Engineered for altitudes up to 1000m, and ambient temperatures below 40°C. Should these conditions vary, necessary parameter adjustments will be meticulously implemented according to standard protocols.
All modifications will strictly conform to industry standards to ensure quality and reliability.
Power Capacity: Available from 25KVA to 2500KVA, catering to a wide range of power requirements
Voltage Levels: Diverse options include 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV for versatile applications
Voltage Level Overview:
Type of Voltage Regulation: Options include Off-circuit and On-load, providing flexibility for different applications
Tapping Range: Features options such as ±5%, ±2x2.5%, ±4x2.5% for adaptable voltage control
Frequency Options: Choose between 50Hz or 60Hz to suit your specific needs
Phases: Available in Three-phase or single-phase, ensuring compatibility with various systems
Connection Symbol: Dyn11, Yyn0, customizable on request to meet precise project specifications
Short-circuit Impedance: Incorporates Standard Impedance to maintain optimal performance
Operational Conditions: Ideal for altitudes not exceeding 1000m, with ambient temperatures up to 40°C
Should operational conditions deviate, essential parameter adjustments will be carried out, in strict compliance with standard guidelines.
The fully sealed oil-immersed power transformer, a marvel of engineering by Chaotai Power, excels with its incredibly low energy loss, silent operation, and exceptional efficiency. It's an outstanding energy-saving solution that dramatically reduces pollution and enhances sustainability.
In contrast to conventional oil-immersed transformers, this fully sealed design eliminates the need for an oil conservator. It cleverly manages oil volume changes through the elastic properties of the corrugated oil tank sheet, ensuring the transformer stays insulated from the air. This pivotal feature not only prevents oil degradation and delays insulation aging but also significantly boosts reliability, doing away with the requirement 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. is a beacon of technological brilliance in the ever-evolving realm of electrical integration. As an eminent high-tech enterprise, we proudly present a distinguished team of R&D, production, and service experts, bolstered by over 15 years of invaluable industry experience. Our relentless pursuit of excellence sets us apart as pioneers in innovation and progress.
Our extensive and versatile product portfolio is a testament to cutting-edge innovation, featuring high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These extraordinary products are indispensable across a myriad of sectors including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academic institutions, healthcare, municipal commerce, water management, hydropower, and road traffic, seamlessly serving both commercial and residential spheres. We take immense pride in powering the future with our revolutionary solutions.
Our philosophy of relentless technological progress and 'smart manufacturing' fuels our commitment to excellence through the integration of elite technical talents. This strategic focus amplifies our core strengths, ensuring we consistently deliver unparalleled service value to our clients. Our remarkable growth journey epitomizes our ethos: advancing from inception to industry leadership through unwavering commitment. Our business strategy is rooted in innovation, with an unyielding dedication to quality as the foundation of our survival, market reputation as the key to growth, and management efficiency as the engine of profitability. We are committed to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management initiatives. Our strategic vision aims to elevate our market competitiveness, catering to China's electric power and grid transmission and distribution sectors with aspirations of reaching new heights. Integrity, unmatched quality, exceptional service, and customer satisfaction are at the heart of our values. We steadfastly aim for excellence, continuously innovating to establish a brand synonymous with trust. The appreciation of our customers fuels our ambition. We extend our deepest gratitude to our loyal customers, both new and longstanding, and warmly invite you to embark 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.
Audited Supplier 
){kind=link}