Product Description
Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, an engineering marvel crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This transformer is the epitome of innovation with its remarkably low energy loss, serene operation, and unparalleled efficiency. It is a beacon of energy conservation, significantly reducing pollution and lessening environmental impact. Unlike conventional oil-immersed transformers, this state-of-the-art model does away with the need for an oil conservator. Instead, it boasts a clever design with a corrugated oil tank that adapts to oil volume changes, maintaining a flawless seal that protects the transformer from air exposure. This ingenious feature curtails oil degradation, extends insulation longevity, and greatly bolsters operational reliability—all while eliminating the need for routine maintenance under normal conditions.
1. Power Capacity: Ranging from 25-2500KVA, with flexibility for 24KV, 30KV, 33KV, 35KV, 36KV, and further customization catering to specific customer requirements 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Offers the convenience of both Off-circuit and On-load regulation options
4. Tapping Range: Offers flexibility with options such as ±5%, 2x2.5%, ±4x2.5%
5. Frequency: Offers compatibility with either 50Hz or 60Hz
6. Phases: Available in both Three-phase and single-phase configurations
7. Connection Symbol: Choose between Dyn11, Yyn0, or customize to meet your specific needs
8. Short-circuit Impedance: Designed with Standard Impedance
9. Operational Conditions: Engineered for altitudes not exceeding 1000m, and ambient temperatures below 40°C. Should these parameters be exceeded, necessary adjustments will be carried out in accordance with standard guidelines.
All adjustments are carried out in strict compliance with industry standards.
Power Capacity: Available in the range of 25-2500KVA
Voltage Levels: Available options include 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Offers options for both Off-circuit and On-load regulation
Tapping Range: Options are available for ±5%, ±2x2.5%, ±4x2.5%
Frequency Options: Choose from 50Hz or 60Hz configurations
Phases: Available in either Three-phase or single-phase
Connection Symbol: Options include Dyn11, Yyn0, with full customization available upon request
Short-circuit Impedance: Equipped with Standard Impedance
Operational Conditions: Ideal for altitudes not exceeding 1000m, and ambient temperatures below 40°C
Should environmental conditions deviate, necessary parameter adjustments will be made, ensuring adherence to standard protocols.
The fully sealed oil-immersed power transformer, an innovative creation by Chaotai Power, shines with its exceptionally low energy loss, tranquil operation, and superior efficiency. It stands as a remarkable energy-saving solution, significantly curbing pollution.
This fully sealed transformer design is a departure from conventional models, as it eliminates the need for an oil conservator. It skillfully manages oil volume changes through the elastic properties of the corrugated oil tank sheet, maintaining an air-tight insulation. This crucial feature not only prevents oil deterioration and slows insulation aging but also considerably enhances reliability, negating the need 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 excellence in the ever-evolving realm of electrical integration. As a distinguished high-tech enterprise, we proudly present a robust team specializing in R&D, production, and service, fortified by over 15 years of invaluable industry expertise. Our steadfast dedication to achieving unrivaled excellence positions us as a pioneer of innovation in the field.
Our extensive and diverse product portfolio showcases cutting-edge innovations, such as high-voltage solid-state soft starters, capacitor cabinets, sophisticated high and low voltage switchgear, advanced gas-insulated switchgear, and comprehensive substations. These remarkable products are indispensable across a multitude of sectors including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic, proving their worth in both commercial and residential applications. We take immense pride in empowering the future through our groundbreaking solutions.
Rooted in a philosophy of relentless technological advancement and 'smart manufacturing,' we are thoroughly dedicated to fostering a culture of excellence through the integration of elite technical talents. This strategic approach enhances our core strengths, ensuring we consistently deliver unparalleled service value to our clients. Our extraordinary journey of growth is a testament to our ethos: transforming from inception to industry leadership with unwavering dedication. Our business strategy is firmly grounded in innovation, with an unwavering commitment to quality as the foundation of our survival, market reputation as the pathway to progression, and management efficiency as the catalyst for profitability. We commit 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, serving China's electric power and grid transmission and distribution sectors with aspirations that soar to new 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. The appreciation of our customers propels our ambition. We express 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}