Product Description



Oil Immersed Series Transformer:
Introducing the remarkable S11-M series, a fully sealed oil-immersed power transformer masterfully crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer stands out with its superb traits of ultra-low energy consumption, minimal operational noise, and extraordinary efficiency. As a pinnacle of energy innovation, it significantly reduces environmental impact. Unlike traditional oil-immersed models, this advanced design eliminates the need for an oil conservator, thanks to its intelligent configuration that adapts to oil volume changes using the flexible corrugated oil tank, ensuring the transformer is completely sealed from air exposure. This cutting-edge feature prevents oil degradation, slows insulation aging, and markedly enhances operational reliability, while completely removing the necessity for routine maintenance.
1. Power Capacity: Available options range from 25-2500KVA, with additional capabilities for 24KV, 30KV, 33KV, 35KV, 36KV, and can be tailored to specific customer requirements. 2. Voltage Level: Choices include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Either Off-circuit or On-load options available.
4. Tapping Range: Options include ±5%, 2x2.5%, or ±4x2.5%, allowing for precise adjustments.
5. Frequency: Selectable options of either 50Hz or 60Hz to suit diverse needs.
6. Phases: Available in both Three-phase and single-phase configurations for versatile applications.
7. Connection Symbol: Offered in Dyn11, Yyn0, with customization available to meet specific requirements.
8. Short-circuit Impedance: Engineered with standard impedance for enduring performance.
9. Operational Conditions: Optimized for altitudes up to 1000m and ambient temperatures below 40°C. Should these parameters not be met, parameter adjustments will be conducted as per industry standards.
All necessary adjustments will be conducted in strict adherence to industry standards, ensuring safety and performance.
Power Capacity: Spanning from 25-2500KVA, catering to a wide array of power needs.
Voltage Levels: Comprehensive range includes 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, ensuring versatile application.
Voltage Level Overview:
Type of Voltage Regulation: Options available in both Off-circuit or On-load configurations, designed for flexibility and precision.
Tapping Range: Provides ±5%, ±2x2.5%, ±4x2.5% options for customizable control.
Frequency Options: Selectable 50Hz or 60Hz modes to perfectly align with various power systems.
Phases: Available in configurations including both Three-phase and single-phase, adaptable to diverse electrical systems.
Connection Symbol: Configurable as Dyn11, Yyn0, with further customization options available to meet specific needs.
Short-circuit Impedance: Meticulously engineered with standard impedance for robust performance.
Operational Conditions: Tailored for locations where altitudes do not exceed 1000m, and ambient temperatures remain below 40°C.
In scenarios where conditions vary, we will meticulously perform all necessary parameter adjustments in strict compliance with standard guidelines, ensuring optimal functionality.
This fully sealed oil-immersed power transformer, an innovation marvel from Chaotai Power, is designed for exceptionally low energy loss, whisper-quiet operation, and unparalleled efficiency. It serves as a leading-edge energy-saving solution, significantly curtailing pollution.
Unlike traditional oil-immersed transformers, this fully sealed design eliminates the need for an oil conservator. It expertly handles oil volume changes via the elasticity of the corrugated oil tank sheet, ensuring complete isolation from air. This vital feature not only prevents oil degradation and slows insulation aging but also enhances reliability and eradicates the requirement 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 luminary in the world of electrical integration, renowned for our pioneering spirit and technological prowess. As a celebrated high-tech enterprise, we boast a formidable team dedicated to Research & Development, production, and unparalleled service excellence. With over 15 years of rich industry heritage, our steadfast commitment to superior quality and innovation cements our status as industry leaders, continuously raising the bar and setting new standards.
Our extensive and cutting-edge product lineup features groundbreaking solutions including high-voltage solid-state soft starters, advanced capacitor cabinets, sophisticated high and low voltage switchgear, state-of-the-art gas-insulated switchgear, and robust substations. These essential products serve as the backbone across a multitude of sectors, from dynamic energy and chemical industries to the intricate networks of metal smelting, power grids, and industrial manufacturing. Additionally, our reach extends into academia, healthcare, municipal commerce, water management, hydropower, and road infrastructure, seamlessly integrating into both commercial and residential landscapes. With pride, we drive transformative change, significantly impacting these critical industries and helping to sculpt a more efficient future.
Guided by an ethos of continuous technological progress and 'smart manufacturing,' we are devoted to fostering excellence through the integration of elite technical talent and innovative strategies. This unwavering focus strengthens our core capabilities, delivering unmatched value and service to our clients. Our journey is one of growth and resilience, evolving from modest beginnings to a position of leadership driven by relentless dedication and innovation. Our business strategy centers around quality as the foundation for survival, market reputation as the growth pathway, and management efficiency as the linchpin of profitability. We pledge to uphold 'technology-driven guidance, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management programs. Our vision is to enhance our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that are ambitious, far-reaching, and ever-ascending. At the core of our values are integrity, unrivaled quality, exceptional service, and customer satisfaction. Our relentless pursuit of excellence inspires constant innovation, solidifying our brand as synonymous with trust. The appreciation of our esteemed customers fuels our drive and ambition. We express deep gratitude to our loyal customers, both seasoned and new, and warmly invite you to join Zhejiang Chaotai in a collaborative journey towards a future filled with promise and progress.
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.