Product Description



Oil Immersed Series Transformer:
Introducing the remarkable S11-M series, a fully sealed oil-immersed power transformer from Zhejiang Chaotai Complete Equipment Co., Ltd., designed to revolutionize the industry. This extraordinary transformer is a paragon of efficiency, boasting attributes like reduced energy loss, whisper-quiet operation, and superior high-efficiency performance. It stands as a stellar example of energy-conserving technology, designed to significantly cut down pollution and lessen environmental impacts. Unlike its traditional counterparts, this cutting-edge model does away with the oil conservator, featuring an intelligent design that automatically manages oil volume changes through the elasticity of the corrugated oil tank, thus maintaining an air-tight seal. This avant-garde feature not only slows down oil degradation and insulation aging but also enhances reliability, ensuring maintenance-free operation during normal functioning.
1. Power Capacity: Spanning from 25KVA to 2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and customization available to meet specific client needs. 2. Voltage Level: Providing versatility with options ranging from 10KV to 22KV, including popular levels like 11KV, 13.8KV, and 15KV. 3. Type of Voltage Regulation: Choose between Off-circuit and On-load to suit your unique requirements.
4. Tapping Range: Flexibility with options including ±5%, 2x2.5%, and ±4x2.5% for precise adjustments.
5. Frequency: Offering adaptability with options of either 50Hz or 60Hz to match varied regional power standards.
6. Phases: Configurable as either Three-phase or Single-phase to align with your specific operational needs.
7. Connection Symbol: Standard configurations include Dyn11 and Yyn0, with customization options available to meet your specifications.
8. Short-circuit Impedance: Engineered to standard impedance values for optimized performance under various conditions.
9. Operational Conditions: Suitable for altitudes up to 1000m and an ambient temperature below 40°C. We ensure adjustments based on standard protocols if conditions exceed these parameters.
All necessary adjustments are performed in strict adherence to industry standards, ensuring quality and reliability.
Power Capacity: From a versatile range of 25KVA up to a robust 2500KVA, designed to meet diverse energy demands.
Voltage Levels: Offering flexibility with a spectrum of levels including 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV, catering to various application needs.
Voltage Level Overview:
Type of Voltage Regulation: Options available for Off-circuit or On-load settings to tailor to specific operational needs and efficiencies.
Tapping Range: Allows for precision and optimization with ranges of ±5%, ±2x2.5%, and ±4x2.5%.
Frequency Options: Choose between 50Hz or 60Hz to accommodate different regional electricity standards.
Phases: Designed for flexibility, available in Three-phase or Single-phase configurations to suit a variety of installations.
Connection Symbol: Offers standard connection options such as Dyn11 and Yyn0, with the ability to customize as needed.
Short-circuit Impedance: Crafted to standard impedance levels, ensuring reliability and performance under varying conditions.
Operational Conditions: Engineered for altitudes up to 1000m and temperatures not exceeding 40°C, with protocol-driven adjustments for exceeding conditions.
In the event that operational conditions deviate, we commit to making all necessary parameter modifications in compliance with standard guidelines, maintaining optimal performance.
The fully sealed oil-immersed power transformer from Chaotai Power epitomizes cutting-edge innovation, blending low energy loss, serene operation, and unmatched efficiency to deliver a top-tier energy-saving solution that substantially reduces pollution.
Setting a new standard, this fully sealed transformer eliminates the traditional oil conservator, adeptly managing oil volume shifts with the elasticity of the corrugated oil tank. This ensures it remains isolated from air, a crucial feature that not only staves off oil degradation and insulation aging but also amplifies operational reliability, rendering regular maintenance unnecessary.
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 beacon of technological prowess in the realm of electrical integration. As a distinguished high-tech enterprise, we boast a dedicated R&D, production, and service team, fortified by over 15 years of invaluable industry experience. Our relentless pursuit of excellence marks us as a leader in innovation.
Our diverse product portfolio features cutting-edge offerings such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These products have found their indispensable place across a multitude of sectors including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic, extending to both commercial and residential applications. We are proud to power the future with our transformative solutions.
Grounded in a philosophy of relentless technological innovation and 'smart manufacturing,' we are committed to fostering a culture of excellence by integrating high-caliber technical talents. This strategic focus serves to augment our core competencies, ensuring that we deliver unparalleled service value to our clients. Our journey of growth is a testament to our ethos: evolving from inception to industry leadership through unwavering dedication. Our business strategy remains anchored in innovation, with a steadfast commitment to quality as the cornerstone of survival, market reputation as the path to development, and management efficiency as the key to profitability. We pledge to harness 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision is to amplify our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that are faster, stronger, and higher. Integrity, unparalleled quality, exceptional service, and customer satisfaction comprise our core values. We are relentless in our pursuit of excellence, perpetually innovating to establish a brand synonymous with trust. The acknowledgment of our 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 a shared journey 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.