Product Description



Oil Immersed Series Transformer:
The S11-M series, a fully sealed oil-immersed power transformer crafted by Chaotai Power, stands out with its remarkable attributes of low loss, subdued noise, and exceptional efficiency. These features collectively ensure an impressive energy-saving effect while minimizing pollution. Distinct from standard oil-immersed transformers, this advanced model eliminates the need for an oil conservator. The transformation in oil volume is seamlessly managed by the flexible corrugated sheet of the corrugated oil tank, providing an automatic adjustment. This innovative design keeps the transformer detached from air exposure, effectively slowing down the oil's deterioration and insulation aging. As a result, operational reliability is significantly enhanced, eliminating the necessity for maintenance during standard operation.
1. Power Capacity: 25-2500KVA, with adaptable options for 24KV, 30KV, 33KV, 35KV, 36KV, and tailored specifications per customer requirements. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation.
4. Tapping Range: ±5%, plus 2x2.5%, or an extended ±4x2.5% for versatile application.
5. Frequency: Selectable between 50Hz and 60Hz to suit varied regional standards.
6. Phases: Available in both Three-phase and Single-phase configurations.
7. Connection Symbol: Configurations include Dyn11, Yyn0, or can be customized as per specific requests.
8. Short-circuit Impedance: Adheres to the Standard Impedance norms for optimal performance.
9. Altitude and Temperature: Suitable for altitudes up to 1000m and ambient temperatures not exceeding 40°C. If conditions deviate, parameters will be adjusted accordingly.
Conformity with standards ensures reliable performance adjustments where required.
Power Capacity: Ranging from 25 to 2500KVA with diverse applications.
Voltage Versatility: Including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, to 36KV.
Voltage Level: Offering flexibility to meet varied requirements.
Voltage Regulation: Options include Off-circuit and On-load types for precise control.
Tapping Range: Variable for precise enhancement ±5%, ±2x2.5%, ±4x2.5%.
Frequency: Choice between 50Hz or 60Hz for global compatibility.
Phases: Available in both Three-phase and Single-phase to cater to diverse needs.
Connection Symbol: Customizable settings like Dyn11, Yyn0, or other specified options.
Short-circuit Impedance: Strict adherence to standard impedance for reliable operation.
Environmental Adaptation: Designed for altitudes not exceeding 1000m and temperatures up to 40°C.
In case of deviation from standard conditions, necessary parameter adjustments will be made in line with standards.
Chaotai Power's fully sealed oil-immersed power transformer excels with its low loss, low noise, and high efficiency, ensuring exceptional energy conservation while reducing pollution.
The fully sealed transformer innovatively eliminates the oil conservator, adjusting oil volume dynamically with a flexible corrugated oil tank sheet. By insulating the transformer from air exposure, it prevents acceleration of oil and insulation aging, bolstering operational reliability and obviating maintenance under normal conditions.
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 proudly as a beacon of innovation in the realm of electrical integration. As a high-tech enterprise, we boast a team of distinguished professionals in R&D, production, and service, equipped with over 15 years of pioneering experience in the industry.
Our diverse suite of products encompasses high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These cutting-edge solutions are indispensable across a multitude of sectors: from energy and chemical industries to metal smelting and power grids; from industrial manufacturing to universities, research institutions, and the medical and pharmaceutical domains; extending to municipal commerce, water conservancy and hydropower, road traffic, as well as commercial and residential developments.
At the core of our ethos is technological innovation, harmonizing with our 'smart manufacturing' development philosophy. By attracting top-tier technical talent, we continually elevate our core competencies, ensuring we deliver unparalleled value to our customers while building the industry's preeminent brand. Since inception, our trajectory has been marked by relentless progress—transforming from inception to excellence. Innovation is our lifeline, underpinning our modern business strategy: thriving on quality, flourishing in the marketplace, advancing through reputation, and achieving efficiency through astute management. Our guiding principles 'technology as the guide, standardized management, superior quality, and customer satisfaction,' steer our quality and talent management efforts, amplifying our market presence. We are resolute in serving China's electric power and grid transmission and distribution sectors with ever-accelerating objectives. Integrity is our foundation, quality is our hallmark, service is our creed, and customer satisfaction is the essence of our mission. Our relentless pursuit of excellence and innovation fortifies our commitment to building a trusted brand. Your recognition fuels our drive forward. We extend our heartfelt gratitude to our esteemed clientele, both new and longstanding, for their unwavering support. Senhang Technology eagerly anticipates collaborating with you to forge a brighter future 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.