Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a pinnacle in transformer technology, expertly developed by Zhejiang Chaotai Complete Equipment Co., Ltd. This power transformer is a marvel of engineering, characterized by its outstanding low energy loss, whisper-quiet operational noise, and unparalleled efficiency. It serves as a beacon of energy conservation, drastically minimizing pollution and environmental impact. Unlike conventional oil-immersed transformers, this state-of-the-art model ingeniously forgoes the oil conservator. With its intelligent design, it autonomously adjusts to oil volume fluctuations through the corrugated oil tank's elasticity, maintaining an airtight seal. This innovation prevents oil degradation, slows insulation aging, and significantly elevates operational reliability, all while rendering maintenance unnecessary during standard operations.
1. Power Capacity: Ranges from 25-2500KVA, available in 24KV, 30KV, 33KV, 35KV, 36KV, and can be tailored to meet specific customer demands. 2. Voltage Level: Accommodates various levels including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Available in both Off-circuit and On-load varieties.
4. Tapping Range: Options include ±5%, 2x2.5%, and ±4x2.5% to meet diverse specifications.
5. Frequency: Available in either 50Hz or 60Hz to suit global standards.
6. Phases: Configurable as either Three-phase or Single-phase to match application needs.
7. Connection Symbol: Standard options include Dyn11 and Yyn0, with customization available upon request.
8. Short-circuit Impedance: Engineered for Standard Impedance, ensuring reliable performance.
9. Operational Conditions: Designed for altitudes up to 1000m and ambient temperatures below 40°C, with parameter adjustments available as per standard protocols if conditions are exceeded.
All adjustments will strictly adhere to established industry standards, ensuring reliable operation.
Power Capacity: Spanning from 25 to 2500KVA, offering versatility for various power demands.
Voltage Levels: A wide range from 10KV to 36KV, encompassing 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, to meet diverse requirements.
Voltage Level Overview:
Type of Voltage Regulation: Choose between Off-circuit or On-load, tailored to your specific operational needs.
Tapping Range: Versatile options include ±5%, ±2x2.5%, ±4x2.5% for precise control.
Frequency Options: Available in global standard frequencies 50Hz or 60Hz.
Phases: Options include Three-phase or Single-phase configurations, adaptable to your system's requirements.
Connection Symbol: Standard configurations include Dyn11, Yyn0, with customizable options to suit specific needs.
Short-circuit Impedance: Designed with Standard Impedance for reliable short-circuit performance.
Operational Conditions: Engineered for altitudes not exceeding 1000m and temperatures below 40°C, with necessary adjustments available should conditions vary.
Should conditions deviate from the specified range, rest assured, we will make the necessary parameter adjustments as per standard guidelines, ensuring optimal performance.
The fully sealed oil-immersed power transformer, crafted by Chaotai Power, epitomizes innovation. It boasts low energy loss, operates with serene quietude, and delivers high efficiency. This remarkable device offers an exceptional energy-saving solution that significantly reduces pollution.
Marking a departure from conventional designs, this fully sealed model eliminates the need for an oil conservator, employing the elasticity of the corrugated oil tank sheet to automatically manage oil volume fluctuations. This ensures the transformer remains isolated from air, preventing oil degradation and insulation aging, while it boosts reliability and negates the necessity 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. is a shining beacon in the landscape of electrical integration, showcasing remarkable technological expertise. As a distinguished high-tech enterprise, we proudly present a dedicated team excelling in Research & Development, production, and service, backed by an impressive 15 years of invaluable industry experience. Our unwavering pursuit of excellence propels us to the forefront of innovation, cementing our status as an industry leader.
Our extensive product portfolio features state-of-the-art solutions including high-voltage solid-state soft starters, capacitor cabinets, advanced high and low voltage switchgear, innovative gas-insulated switchgear, and robust substations. These pioneering products are pivotal in a diverse array of sectors: energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, road traffic, and more, encompassing both commercial and residential applications. We proudly drive the future forward with our transformative solutions, empowering a wide spectrum of industries.
Rooted in a philosophy of unyielding technological innovation and 'smart manufacturing,' our commitment to fostering a culture of excellence is unwavering. By integrating top-notch technical talents, we enhance our core competencies, consistently delivering unparalleled service value to our clients. Our growth journey narrates our evolution from inception to industry leadership, driven by relentless dedication. Our business strategy is firmly rooted in innovation, maintaining quality as the lifeline of survival, market reputation as the developmental path, and management efficiency as the profitability key. We are devoted to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the backbone of our quality and talent management initiatives. Our strategic vision is to elevate our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that are swifter, stronger, and higher. Our core values of integrity, unmatched quality, exceptional service, and customer satisfaction steer our relentless pursuit of excellence. We ceaselessly innovate to create a brand synonymous with trust. The appreciation from our customers fuels our ambitions. We extend profound gratitude to our loyal customers, both new and enduring, and warmly invite you to join Senhang Technology on a shared quest toward a brighter 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.