Product Description



Oil Immersed Series Transformer:
Step into the future of power transformation with the groundbreaking S11-M series fully sealed oil-immersed power transformer, a masterpiece of precision engineering and innovative design by Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer revolutionizes energy management with its ultra-low energy loss, whisper-quiet operation, and unparalleled efficiency. It is a pioneer of energy conservation, significantly reducing pollution and minimizing environmental impact. Innovatively crafted without the need for a traditional oil conservator, this avant-garde model employs a cleverly designed corrugated oil tank that autonomously adjusts to oil volume changes, maintaining a perfectly sealed environment that shields the transformer from air exposure. This trailblazing feature effectively prevents oil degradation, significantly extends the life of insulation materials, and dramatically enhances operational reliability—all while demanding no routine maintenance under standard conditions.
1. Power Capacity: Offering a robust range from 25-2500KVA, with versatile options such as 24KV, 30KV, 33KV, 35KV, 36KV, and customizable configurations to precisely meet customer-specific needs. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, providing wide-ranging adaptability. 3. Type of Voltage Regulation: Features both Off-circuit and On-load options for flexible control and functionality.
4. Tapping Range: Provides a variety of selections including ±5%, 2x2.5%, or ±4x2.5% to cater to diverse power requirements.
5. Frequency: Available in both 50Hz and 60Hz, perfectly aligning with different regional standards and demands.
6. Phases: Offered in both Three-phase and single-phase configurations to accommodate a wide array of applications.
7. Connection Symbol: Options include Dyn11, Yyn0, or customized configurations tailored to your precise specifications with seamless ease.
8. Short-circuit Impedance: Equipped with Standard Impedance to deliver reliable and consistent performance.
9. Operational Conditions: Engineered to excel at altitudes up to 1000m and in ambient temperatures below 40°C. Should conditions differ, we will adjust the parameters as necessary to adhere to standard protocols.
All modifications will strictly adhere to industry standards, guaranteeing peak performance and reliability.
Power Capacity: Spans a wide range from 25-2500KVA, offering solutions for diverse energy requirements.
Voltage Levels: Available in 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, ensuring extensive flexibility and adaptability.
Voltage Level Overview:
Type of Voltage Regulation: Offers both Off-circuit and On-load variants, enabling adaptable and precise control.
Tapping Range: Provides flexible options like ±5%, ±2x2.5%, ±4x2.5% to meet specific power needs and standards.
Frequency Options: Select from 50Hz or 60Hz to satisfy local and international standards.
Phases: Available in both Three-phase and single-phase configurations to support a wide variety of applications.
Connection Symbol: Includes standard options such as Dyn11, Yyn0, with the ability to fully customize configurations as needed.
Short-circuit Impedance: Features Standard Impedance to ensure dependable and robust operation.
Operational Conditions: Specifically designed to perform optimally at altitudes up to 1000m and in temperatures below 40°C, with adjustments made for varying conditions as per standard guidelines.
Should operational conditions deviate, appropriate parameter adjustments will be executed in line with standard guidelines to maintain optimal functionality.
Experience the pinnacle of Chaotai Power's innovative prowess with the fully sealed oil-immersed power transformer, a marvel of engineering that excels with incredibly low energy loss, silent operations, and superior efficiency. This transformative device is a powerful ally in energy conservation, greatly reducing pollution and enhancing sustainability.
2b409ff5
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. proudly stands as a shining beacon of technological prowess in the dynamic realm of electrical integration. As a distinguished high-tech enterprise, we boast an elite team specializing in research, development, production, and service, fortified by an impressive 15-plus years of industry expertise. Our unwavering commitment to exceptional excellence distinguishes us as true pioneers of innovation.
Our extensive and diverse product lineup showcases cutting-edge innovations, featuring high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These outstanding products are indispensable across a wide array of sectors, including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. They extend their remarkable usability to both commercial and residential applications. We empower the future with our groundbreaking solutions, setting new standards in technological advancement.
Driven by a philosophy of relentless technological evolution and 'smart manufacturing,' we are sincerely dedicated to fostering a culture of excellence by integrating top-tier technical talents. This strategic focus amplifies our core capabilities, ensuring that we consistently deliver unparalleled service value to our clients. Our extraordinary 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 a steadfast commitment to quality as the foundation of our survival, market reputation as our path to growth, and management efficiency as the catalyst for profitability. We are devoted to harnessing 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management endeavors. Our strategic vision is 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 are at the core of our values. We persistently strive for excellence, ceaselessly innovating to establish a brand synonymous with trust. The appreciation from our customers fuels our ambition. We wholeheartedly express our deepest gratitude to our loyal customers, both new and longstanding, and warmly invite you to join us in 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.