Product Description



Oil Immersed Series Transformer:
Introducing the S11-M Series Fully Sealed Oil Immersed Power Transformer, a revolutionary product by Chaotai Power. This transformer is engineered to offer unparalleled benefits such as low loss, minimal noise, and exceptional efficiency, resulting in significant energy savings and pollution reduction. Unlike conventional oil-immersed transformers, this innovative design eliminates the need for an oil conservator. The elastic corrugated sheet within the corrugated oil tank auto-adjusts to changes in oil volume, isolating the transformer from air exposure. This groundbreaking feature not only delays oil deterioration and insulation aging but also substantially boosts operational reliability, eliminating the need for maintenance during standard operations.
1. Power Capacity: Ranges from 25 to 2500KVA, compatible with 24KV, 30KV, 33KV, 35KV, 36KV, and customizable according to customer requirements. 2. Voltage Level: Available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Options for Off-circuit or On-load regulation.
4. Tapping Range: Configurable at ±5 %, with additional settings of 2x2.5 % and ±4x2.5 %.
5. Frequency: Operates efficiently at both 50Hz and 60Hz.
6. Phases: Available in both Three-phase or Single-phase configurations.
7. Connection Symbol: Options include Dyn11 and Yyn0, with additional custom configurations upon request.
8. Short-Circuit Impedance: Compliant with Standard Impedance ratings.
9. Altitude: Suitable for altitudes not exceeding 1000m, and ambient temperatures not surpassing 40°C. If these conditions cannot be met, we will adapt the parameters to align with industry standards.
Adapting parameters if standard conditions are unmet ensures optimal performance and reliability.
Power Capacity: Offers flexibility with capacities ranging from 25 to 2500KVA.
Voltage Range: 10KV to 36KV, meeting various power distribution needs.
Voltage Level: Customizable options for a wide range of applications.
Voltage Regulation: Choice of Off-circuit or On-load regulation for tailored performance.
Tapping Range: Designed with flexibility ±5%, and additional fine-tuning options at ±2x2.5% and ±4x2.5%
Frequency: Dual-frequency capability at 50Hz or 60Hz, ensuring broad compatibility.
Phases: Choice between Three-phase or Single-phase for diverse application needs.
Connection Symbol: Customizable with Dyn11, Yyn0, or as per specific requirements.
Short-Circuit Impedance: Adheres to industry-standard impedance levels for safety.
Altitude Adaptability: Designed for altitudes up to 1000m and temperatures up to 40°C; adaptable for other conditions.
When environmental conditions vary, parameter adjustments ensure continued standard adherence and optimal transformer performance.
The fully sealed oil immersed power transformer by Chaotai Power stands out with its low loss, low noise, and high efficiency, delivering impressive energy-saving effects and reducing environmental impact.
By eliminating the traditional oil conservator, this fully sealed transformer uses innovative auto-adjustment technology within its corrugated oil tank to maintain optimal performance. This isolation from air significantly reduces oil degradation and insulation aging, enhancing operational reliability and eliminating 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. emerges as a beacon of innovation within the high-tech realm of electrical integration. With an exceptional team dedicated to research, development, production, and service, boasting over 15 years of unparalleled industry experience, we continue to redefine standards in the market.
Our diverse product line encompasses high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These state-of-the-art solutions empower a vast array of sectors, including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, and beyond. Furthermore, our products are integral to the success of universities, research institutions, medical and pharmaceutical ventures, municipal commerce, water conservancy and hydropower projects, road traffic management, as well as commercial and residential development.
Our unwavering commitment to technological advancement is embodied in our 'smart manufacturing' philosophy. By attracting top-tier technical talent, we bolster our core competencies, delivering unparalleled value to our clients. Since our inception, we have transformed from a budding enterprise to an industry leader, driven by innovation and a quest for excellence. Our business model thrives on quality-driven survival, reputation-based development, and efficiency through meticulous management. Our resolute dedication to 'technology as the guide, standardized management, superior quality, and customer satisfaction' elevates our market competitiveness, fuelling our mission to enhance China's electric power and grid distribution. Integrity, quality, and exemplary service form the bedrock of our ethos, with customer satisfaction as our eternal pursuit. As we continue to break new ground, we are determined to build a trusted brand through relentless innovation. Your trust fuels our progress and we extend our heartfelt gratitude to all our patrons for their enduring support. Senhang Technology eagerly anticipates partnering with you to forge a brighter, shared 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.