Product Description



Oil Immersed Series Transformer:
Introducing the extraordinary S11-M series, a fully sealed oil-immersed power transformer, meticulously crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This distinguished masterpiece showcases remarkable features such as minimal energy consumption, whisper-quiet operation, and exceptional efficiency. As a beacon of energy innovation, it significantly reduces environmental pollution. Unlike conventional oil-immersed models, this elegant design eliminates the need for an oil conservator. The intelligent construction adapts seamlessly to oil volume changes through the flexible corrugated oil tank, ensuring the transformer is protected from air exposure. This state-of-the-art feature not only prevents oil degradation and retards insulation aging but also significantly boosts operational reliability, while also eliminating the need for maintenance during regular operations.
1. Power Capacity: Offering a versatile range from 25-2500KVA, with adaptable options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to fit customer needs. 2. Voltage Level: Available in an array of options including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Provided in both Off-circuit or On-load variations for optimal flexibility.
4. Tapping Range: Expertly configurable at ±5%, 2x2.5%, or ±4x2.5% to meet diverse application requirements.
5. Frequency: Available options for either 50Hz or 60Hz to suit a variety of operational needs.
6. Phases: Available in versatile configurations of Three-phase or single-phase, tailored to meet specific application needs.
7. Connection Symbol: Offered as Dyn11, Yyn0, with options for customization as required, ensuring compatibility with various systems.
8. Short-circuit Impedance: Engineered with Standard Impedance to ensure reliable operation across different conditions.
9. Operational Conditions: Optimized for altitudes not exceeding 1000m, with ambient temperatures kept below 40°C. Should these conditions vary, parameter adjustments adhere to standard industry protocols.
All necessary adjustments will be strictly aligned with industry standards, ensuring uncompromising quality and performance.
Power Capacity: Offering a versatile range from 25-2500KVA to suit a variety of power needs.
Voltage Levels: Covering 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV for comprehensive application coverage.
Voltage Level Overview:
Type of Voltage Regulation: Available in flexible Off-circuit or On-load options for precise control.
Tapping Range: Offered at versatile settings of ±5%, ±2x2.5%, ±4x2.5% to meet various operational demands.
Frequency Options: Available in 50Hz or 60Hz modes, providing adaptability to different power systems.
Phases: Options include adaptable Three-phase or single-phase configurations to meet diverse requirements.
Connection Symbol: Configurable as Dyn11, Yyn0, with customizable options available upon request for tailored setups.
Short-circuit Impedance: Thoughtfully engineered with Standard Impedance for robust and reliable performance.
Operational Conditions: Expertly designed for altitudes not exceeding 1000m, with ambient temperatures maintained below 40°C, ensuring optimal functionality.
In situations where conditions differ, we will meticulously perform necessary parameter adjustments, strictly adhering to standard guidelines.
This fully sealed oil-immersed power transformer, a marvel of innovation from Chaotai Power, is crafted for minimal energy loss, whisper-quiet operation, and unparalleled efficiency. Standing as a premier energy-saving solution, it significantly reduces pollution.
Unlike conventional oil-immersed transformers, this fully sealed design eliminates the oil conservator. It expertly manages oil volume variations with the elasticity of the corrugated oil tank sheet, ensuring the transformer is well-protected from air exposure. This crucial feature not only prevents oil degradation and insulation aging but also enhances reliability and eliminates the need 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. radiates as a leader of pioneering technology and breakthrough innovation in the field of electrical integration. Celebrated as a high-tech titan, our company is characterized by our elite R&D, production, and service teams, fortified by over 15 years of invaluable industry experience. Our steadfast dedication to excellence reinforces our leadership stature in innovation, as we consistently set new standards across the industry.
Our cutting-edge product portfolio showcases revolutionary solutions like high-voltage solid-state soft starters, capacitor cabinets, versatile high and low voltage switchgear, gas-insulated switchgear, and comprehensive substations. These vital products are indispensable across numerous industries, from energy and chemicals to metal smelting, power grids, and industrial manufacturing. Furthermore, our reach extends into academia, healthcare, municipal commerce, water management, hydropower, and road traffic, impacting both commercial and residential domains. We proudly lead the future with our transformative solutions, making a profound impact across these critical sectors.
Guided by a philosophy of unyielding technological progress and 'smart manufacturing,' we are devoted to fostering a culture of excellence by integrating premier technical talents and innovative strategies. This strategic focus strengthens our core competencies, ensuring unparalleled service value for our clients. Our evolution from modest origins to industry leadership is a testament to our core values: quality as survival's cornerstone, market reputation as development's path, and management efficiency as profitability's key. Our commitment is to leverage 'technology as the guide, standardized management, superior quality, and customer satisfaction' as pillars of our quality and management ambitions. Our strategic vision aims to enhance our market competitiveness, serving China's electric power sectors with aspirations that soar higher and stretch further. Integrity, peerless quality, outstanding service, and customer satisfaction form the essence of our values. Our relentless pursuit of excellence fuels continuous innovation, establishing our brand as synonymous with trust. The recognition from our esteemed customers fuels our aspirations. We extend heartfelt thanks to loyal customers, both new and longstanding, and warmly invite you to join Zhejiang Chaotai on a shared journey 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.