Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil-immersed power transformer by Chaotai Power, renowned for its outstanding performance in delivering efficient and sustainable energy. This innovative transformer boasts remarkable features such as low loss, low noise, and exceptional efficiency, translating into substantial energy savings and reduced environmental impact. Unlike conventional oil-immersed transformers, our fully sealed design eliminates the need for an oil conservator. The dynamic adjustment of oil volume is seamlessly handled by the corrugated sheet's elasticity in the oil tank, ensuring isolation from air, which significantly curtails oil degradation and insulation aging. This enhances operational reliability and minimizes the need for maintenance during routine operations.
1. Power Capacity: Ranging from 25 to 2500KVA with voltage ratings of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable options according to customer requirements.
4. Tapping Range: Versatile adjustments with ±5%, 2x2.5%, and ±4x2.5%.
5. Frequency: Compatible with both 50Hz and 60Hz.
6. Phases: Available in both three-phase and single-phase configurations.
7. Connection Symbol: Versatile options include Dyn11, Yyn0, or as per specific requests.
8. Short-Circuit Impedance: Built to standard impedance specifications.
9. Altitude is not exceeding 1000m, and ambient temperature not exceeding 40°C. If conditions differ, we will adjust parameters to meet standards.
Modulation of parameters will be conducted in accordance with industry standards if required conditions are unmet.
Power capacity: Offering a robust range from 25 to 2500KVA.
Voltage levels include IOkYAky, 1OY, I a. D SKY, 2OKY, 22KY, 2ANV, 3OKV, 33KV, 35KV, and 36KV.
Voltage Level:
Type of Voltage Regulation: Options available for off-circuit or on-load regulation.
Tapping Range: Flexible adjustments with ±5%, ±2x2.5%, and ±4x2.5%.
Frequency: Suitable for 50Hz or 60Hz systems.
Phases: Designed for three-phase or single-phase applications.
Connection Symbol: Configurations include Dyn11, Yyn0, or as requested by clients.
Short-Circuit Impedance: Adheres to standard impedance guidelines.
Altitude constraints: Not exceeding 1000m, with ambient temperatures not exceeding 40°C.
Parameter adjustments will be aligned with industry standards if standard conditions are not met.
The fully sealed oil-immersed power transformer from Chaotai Power is engineered for low loss, minimal noise, and high efficiency, ensuring remarkable energy savings and pollution reduction.
Our fully sealed transformer surpasses ordinary oil-immersed models by eliminating the need for an oil conservator. The advanced design enables automatic oil volume adjustment via the corrugated sheet's elasticity, maintaining isolation from air. This innovative approach curtails oil deterioration and insulation aging, boosting operational reliability and reducing maintenance during regular use.
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 pioneer in electrical integration, celebrated for our high-tech solutions. Our exceptional team, boasting over 15 years of experience, specializes in research and development, production, and unparalleled service. We are dedicated to delivering outstanding innovation and technological advancements.
Our impressive portfolio showcases an array of cutting-edge products, including high-voltage solid-state soft starters, innovative capacitor cabinets, versatile high and low voltage switchgear, advanced gas-insulated switchgear, and robust substations. Our solutions have a strong presence across diverse sectors such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academic institutions, medical and pharmaceutical sectors, municipal commerce, water conservancy, hydropower, road traffic, as well as commercial and residential zones, offering reliability and efficiency.
Driven by the spirit of 'smart manufacturing,' we prioritize technological innovation and embrace a philosophy of continuous growth. By attracting top-tier technical experts, we elevate our core competencies to offer unparalleled value to our clients and strive to establish a leading brand in our industry. Since our inception, we have transformed from a fledgling entity to a beacon of excellence, guided by principles of quality, reputation, and strategic management. Our commitment to 'technology as the guide, standardized management, excellent quality, and customer satisfaction' fuels our ambition to enhance our market presence and power China's electric transmission and distribution sectors with unmatched agility and ambition. Upholding integrity, prioritizing quality, and ensuring premium service, customer satisfaction remains our enduring promise. We pursue a trajectory of excellence and innovation, earnestly building a brand synonymous with trust. Your trust propels our journey forward. We extend our heartfelt gratitude to all our esteemed clients, past and present, for your steadfast support. Together with Senhang Technology, we eagerly anticipate creating a brighter future hand in hand.
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.