Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a meticulously engineered fully sealed oil-immersed power transformer by Zhejiang Chaotai Complete Equipment Co., Ltd. This innovative transformer is celebrated for its outstanding features—boasting exceptionally low energy loss, whisper-quiet operation, and remarkable efficiency. As a model of energy conservation, it provides an unparalleled solution that drastically cuts pollution and reduces environmental impact. Diverging from traditional models, this cutting-edge transformer does away with the conventional oil conservator. Ingeniously designed, it autonomously manages oil volume fluctuations through the action of the corrugated oil tank's elasticity, ensuring a seamless seal against air exposure. This groundbreaking feature hinders oil degradation, decelerates insulation aging, and greatly bolsters operational reliability, all while eliminating the need for routine maintenance during normal operation.
1. Power Capacity: Spanning from 25KVA up to an impressive 2500KVA, with voltage options at 24KV, 30KV, 33KV, 35KV, 36KV, and further customizable to meet unique customer specifications. 2. Voltage Level: Offers multiple choices including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV to perfectly suit your diverse applications. 3. Type of Voltage Regulation: Available in both Off-circuit and On-load configurations for adaptable performance.
4. Tapping Range: Offering flexibility with options of ±5%, 2x2.5%, ±4x2.5% to cater to various operational demands.
5. Frequency: Compatible with both 50Hz and 60Hz frequencies, ensuring broad applicability.
6. Phases: Available in versatile three-phase or single-phase formats to match your specific needs.
7. Connection Symbol: Standard configurations include Dyn11, Yyn0, with custom options available upon request.
8. Short-circuit Impedance: Engineered to standard impedance specifications for reliability.
9. Operational Conditions: Designed for elevations up to 1000m, with ambient temperatures kept below 40°C. Should conditions exceed these limits, parameter adjustments will be seamlessly integrated, adhering to standard protocols.
All parameter adjustments conform strictly to set industry standards.
Power Capacity: Ranges impressively from 25KVA to 2500KVA, providing exceptional versatility.
Voltage Levels: Offering options of 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV for comprehensive coverage.
Voltage Level Overview:
Type of Voltage Regulation: Choose between reliable Off-circuit or On-load mechanisms to suit your operational needs.
Tapping Range: Customizable options of ±5%, ±2x2.5%, ±4x2.5% for enhanced adaptability.
Frequency Options: Operational at both 50Hz and 60Hz to suit varied requirements.
Phases: Tailored in either three-phase or single-phase setups to align with diverse specifications.
Connection Symbol: Options include Dyn11, Yyn0, with further customization available upon inquiry.
Short-circuit Impedance: Designed to meet standard impedances, ensuring consistent performance.
Operational Conditions: Suited for altitudes not surpassing 1000m and temperatures not exceeding 40°C for peak performance.
In cases of deviation from these conditions, we will implement necessary parameter adjustments, always adhering to rigorous standard guidelines.
Chaotai Power's fully sealed oil-immersed power transformer exemplifies innovation, featuring minimal energy loss, silent operation, and maximized efficiency. It provides a superb energy-saving solution, significantly minimizing pollution.
Contrasting sharply with traditional oil-immersed transformers, this state-of-the-art fully sealed design omits the need for an oil conservator. It adeptly manages oil volume changes utilizing the elasticity of the corrugated oil tank sheet, ensuring the transformer remains securely air-isolated. This crucial feature not only prevents oil degradation and slows insulation aging but also amplifies reliability and negates the necessity 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. shines as a paragon of technological excellence in the electrical integration landscape. As a prestigious high-tech enterprise, we proudly present a dedicated team specializing in R&D, production, and service, bolstered by over 15 years of invaluable experience in the industry. Our unyielding commitment to excellence positions us at the forefront of innovation and technological advancement.
Our extensive and diverse product portfolio showcases pioneering solutions such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These state-of-the-art products have become essential in a wide array of sectors including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, road traffic, and more. We are dedicated to powering the future with solutions that transform industries and enhance everyday life, spanning both commercial and residential applications.
Firmly rooted in a philosophy of relentless technological innovation and 'smart manufacturing,' we are committed to nurturing a culture of excellence by integrating top-tier technical talents. This strategic focus enhances our core competencies, ensuring we provide unparalleled service value to our clients. Our growth journey is a testament to our ethos: evolving from inception to industry leadership through unwavering dedication and innovative spirit. Our business strategy is firmly anchored in innovation, with a steadfast commitment to quality as our cornerstone for survival, market reputation as the path to development, and management efficiency as the key to profitability. We pledge to use 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the foundations of our quality and talent management initiatives. Our strategic vision aims to amplify market competitiveness, serving China's electric power and grid transmission and distribution sectors with ambitions that are faster, stronger, and higher. Integrity, unmatched quality, exceptional service, and ultimate customer satisfaction are our core values. We are unwavering in our pursuit of excellence, perpetually innovating to create a brand synonymous with trust and reliability. The recognition from our valued customers fuels our ambition. We extend heartfelt gratitude to our loyal customers, both new and longstanding, and warmly invite you to join Senhang Technology on an inspiring journey towards a brighter tomorrow together.
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.