Product Description



Oil Immersed Series Transformer:
Introducing the extraordinary S11-M series, a fully sealed oil-immersed power transformer meticulously engineered by Zhejiang Chaotai Complete Equipment Co., Ltd. This distinguished transformer boasts unparalleled characteristics including minimal energy consumption, low operational noise, and exceptional efficiency. As an exemplary energy solution, it significantly curtails environmental pollution. In stark contrast to conventional oil-immersed variants, this sophisticated model eliminates the necessity of an oil conservator. Its intelligent design autonomously adjusts to oil volume shifts utilizing the corrugated oil tank's flexibility, effectively sealing the transformer from air exposure. This state-of-the-art feature prevents oil degradation, retards insulation aging, and markedly enhances operational reliability, all the while eliminating the need for maintenance in routine operations.
1. Power Capacity: Ranges from 25-2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to meet customer specifications 2. Voltage Level: Available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Offered in both Off-circuit or On-load variations
4. Tapping Range: Configurable at ±5%, 2x2.5%, or ±4x2.5%
5. Frequency: Options for either 50Hz or 60Hz
6. Phases: Available in Three-phase or single-phase configurations
7. Connection Symbol: Offered as Dyn11, Yyn0, with customization options as required
8. Short-circuit Impedance: Designed with Standard Impedance
9. Operational Conditions: Suitable for altitudes not exceeding 1000m and ambient temperatures below 40°C. Should these conditions not be met, adjustments in parameters will follow standard industry protocols.
All necessary adjustments will be in strict compliance with industry standards.
Power Capacity: Ranging from 25-2500KVA
Voltage Levels: Spanning 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit or On-load options
Tapping Range: Offered at ±5%, ±2x2.5%, ±4x2.5%
Frequency Options: Available in 50Hz or 60Hz modes
Phases: Options include Three-phase or single-phase
Connection Symbol: Configurable as Dyn11, Yyn0, with customization options available upon request
Short-circuit Impedance: Engineered with Standard Impedance
Operational Conditions: Designed for altitudes not exceeding 1000m, with ambient temperatures not exceeding 40°C
In cases where conditions differ, we will perform necessary parameter adjustments in adherence to standard guidelines.
This fully sealed oil-immersed power transformer, a marvel of innovation from Chaotai Power, is crafted for low energy loss, whisper-quiet operation, and exceptional efficiency. It stands as a premier energy-saving solution, dramatically reducing pollution.
Unlike conventional oil-immersed transformers, this fully sealed design forgoes the oil conservator. It adeptly manages oil volume variations with the elasticity of the corrugated oil tank sheet, ensuring the transformer remains isolated from air. 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. stands as a luminary in the world of electrical integration, seamlessly blending state-of-the-art technology with unmatched innovation. Celebrated as a prestigious high-tech enterprise, our formidable R&D, production, and service teams thrive on over 15 years of profound industry experience. With an unwavering pursuit of excellence, we solidify our stature as pioneers, consistently setting new industry standards and surpassing benchmarks.
Our expansive and cutting-edge product suite encompasses groundbreaking solutions like high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, sophisticated gas-insulated switchgear, and comprehensive substations. These pivotal products are indispensable across a spectrum of industries, including the energy and chemical sectors, metal smelting, electric power grids, and industrial manufacturing. Our transformative influence extends seamlessly into academia, healthcare, municipal commerce, water management, hydropower, and road traffic, enriching both commercial and residential spaces. We proudly shape the future with our innovative solutions, leaving a profound impact on these essential sectors.
Guided by a philosophy of relentless technological advancement and 'smart manufacturing,' we champion a culture of excellence by integrating elite technical talents with pioneering strategies. This strategic focus enhances our core competencies, allowing us to deliver unparalleled service value to our clients. Our journey from modest beginnings to industry leadership is a tribute to our core values: unwavering dedication and groundbreaking innovation. Our business strategy remains firmly anchored on quality as the foundation for survival, market reputation as the pathway to growth, and management efficiency as the catalyst for profitability. We commit to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management efforts. Our strategic vision is to amplify our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that soar higher, extend further, and achieve greater outcomes. Integrity, unmatched quality, exceptional service, and customer satisfaction are the cornerstone of our values. Our relentless pursuit of excellence fuels continual innovation, establishing our brand as a hallmark of trust. The appreciation of our esteemed customers propels our ambition. We express deep gratitude to our loyal customers, both new and longstanding, and warmly invite you to join Zhejiang Chaotai 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.