Product Description



Oil Immersed Series Transformer: Explore the pinnacle of transformer technology with our oil-immersed series, designed for exceptional performance and longevity. This series ensures your power needs are met with precision and reliability.
The S11-M series fully sealed oil immersed power transformer, a pioneering creation by Chaotai Power, stands out for its remarkable low loss, minimal noise, and superior efficiency. Engineered to deliver outstanding energy savings and minimize pollution, this transformer revolutionizes the power industry. Diverging from traditional oil immersed transformers, the fully sealed variant eliminates the need for an oil conservator, with the corrugated oil tank's elasticity seamlessly compensating for oil volume changes. By isolating the transformer from air exposure, it effectively curtails oil degradation and insulation aging, bolstering operational reliability and obviating maintenance during standard operations.
1. Power Capacity: Tailored to meet diverse requirements, available from 25-2500KVA with voltage levels of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to customer specifications. 2. Voltage Level: Flexibly accommodating 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV, ensuring compatibility with varied systems. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation to suit your operational needs.
4. Tapping Range: Offering versatile adjustment options with ±5%, 2x2.5%, ±4x2.5%, granting precision in voltage management.
5. Frequency: Compatible with both 50Hz and 60Hz systems, providing flexibility for global applications.
6. Phases: Available in both three-phase and single-phase configurations to cater to a wide range of applications.
7. Connection Symbol: Configurable as Dyn11 or Yyn0, with adaptability for custom requests.
8. Short-Circuit Impedance: Designed to adhere to standard impedance requirements, ensuring safe and efficient operation.
9. Altitude is not exceeding 1000m, ambient temperature not exceeding 40°C. If these conditions are not met, parameters will be modulated in accordance with standard specifications, ensuring optimal performance.
In case the standard altitude and temperature conditions are exceeded, our design allows for adjustments to meet the specific environmental demands, ensuring continued efficiency and reliability.
Power Capacity: Offering a wide range of power capacities from 25 to 2500KVA, to meet varying power requirements with precision.
Voltage Level: Our transformers support multiple voltage levels—10KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV—providing flexibility for diverse applications.
Voltage Level: Our product is designed to accommodate diverse voltage levels, offering unparalleled versatility in application.
Type of Voltage Regulation: Choose between Off-circuit or On-load voltage regulation, allowing for tailored solutions to meet your specific operational needs.
Tapping Range: Offering enhanced flexibility with options of ±5%, ±2x2.5%, and ±4x2.5%, our transformers ensure precision in voltage adjustments.
Frequency: Our transformers are compatible with both 50Hz and 60Hz frequency systems, providing global adaptability.
Phases: Available in both three-phase and single-phase configurations, providing the versatility needed for a wide array of applications.
Connection Symbol: Configurable as Dyn11 or Yyn0, or customizable to specific requirements, ensuring seamless integration with your existing systems.
Short-Circuit Impedance: Designed to meet standard impedance criteria, providing safety and efficiency in operation.
Our transformers are engineered to perform optimally at altitudes not exceeding 1000m and ambient temperatures not exceeding 40°C, with provisions for parameter adjustments if these conditions are exceeded.
Should the operating environment exceed standard conditions, our transformers are designed to adjust parameters accordingly, maintaining exceptional performance.
Chaotai Power's fully sealed oil immersed power transformers are engineered for excellence, characterized by low loss, low noise, and high efficiency. These transformers set a benchmark for energy conservation and pollution reduction.
Our fully sealed transformers stand apart from conventional oil immersed models by eliminating the oil conservator. The oil volume is dynamically managed through the corrugated oil tank's elasticity, isolating the transformer from air exposure to mitigate oil deterioration and insulation aging. This innovative design enhances operational reliability and reduces the need for maintenance during normal operation.
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 innovation in the realm of electrical integration. Distinguished as a high-tech enterprise, our professional R&D, production, and service team boasts over 15 years of exemplary industry experience, affirming our position as leaders in the field.
Our portfolio showcases an impressive array of products, including high-voltage solid-state soft starters, capacitor cabinets, and sophisticated high and low voltage switchgear, as well as cutting-edge gas-insulated switchgear and substations. These products are pivotal across diverse sectors, serving the dynamic needs of energy and chemical industries, metal smelting, electric power grids, and industrial manufacturing. Our influence extends to universities, research institutions, the medical and pharmaceutical fields, municipal commerce, water conservancy, hydropower, road traffic, and both commercial and residential areas, proving our versatility and widespread applicability.
Embracing the spirit of technological innovation and our 'smart manufacturing' philosophy, we prioritize the infusion of top-tier technical talents, thereby bolstering our core competitiveness. Our commitment is to offer unparalleled service value, continuously striving to forge a premier brand within the industry. From our inception, we have embarked on a remarkable journey, progressing from humble beginnings to achieving remarkable excellence. Our strategy is rooted in innovation, aligning with modern business principles: thriving through superior quality, aligning with market demands, enhancing reputation for growth, and optimizing management for efficiency. We are resolute in our dedication to 'technology as the beacon, standardized management, unparalleled quality, and ultimate customer satisfaction,' elevating our market competitiveness. Our ambition is to serve China's electric power and grid distribution fields with unparalleled speed, strength, and ambition. Integrity forms our foundation, quality is our benchmark, service is our crown jewel, and customer satisfaction is our unwavering credo. In our relentless pursuit of excellence and continuous innovation, we aim to build a brand that is synonymous with trustworthiness. Your recognition fuels our ambition. We extend heartfelt gratitude to our loyal customers for their steadfast support and affection. At Senhang Technology, we eagerly anticipate collaborating with you to shape 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.