Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series fully sealed oil immersed power transformer by Chaotai Power. This state-of-the-art transformer boasts an array of features such as low loss, reduced noise, and exceptional efficiency. It not only provides an impressive energy-saving performance but also minimizes environmental impact. What sets it apart from conventional oil-immersed transformers is its innovative fully sealed design, which eliminates the need for an oil conservator. The transformer cleverly adjusts for oil volume changes through the elasticity of the corrugated sheet in its corrugated oil tank. By being completely isolated from the air, the transformer significantly retards oil degradation and insulation aging, ensuring enhanced operational reliability and eliminating the need for maintenance during typical operations.
1. Power Capacity: 25-2500KVA, suitable for voltage levels of 24KV, 30KV, 33KV, 35KV, 36KV, and other customized requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV variations. 3. Type of Voltage Regulation: Options for Off-circuit or On-load voltage regulation.
4. Tapping Range: ±5%, with additional settings of ±2x2.5% and ±4x2.5% to cater to diverse needs.
5. Frequency: Options for both 50Hz and 60Hz frequencies.
6. Phases: Available in both three-phase and single-phase configurations.
7. Connection Symbol: Standard configurations of Dyn11, Yyn0, or as requested by customers.
8. Short-circuit Impedance: Designed with standard impedance to ensure operational stability.
9. Altitude: Suitable for altitudes not exceeding 1000m and an ambient temperature not exceeding 40°C. If these conditions are not met, we will modulate parameters to adhere to standard requirements.
Ensuring compliance with standard parameters under non-standard conditions.
Power Capacity: Ranging from 25KVA to 2500KVA to suit a wide variety of applications.
Voltage Levels: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level: Tailored voltage levels to meet varied power requirements.
Type of Voltage Regulation: Choose between Off-circuit or On-load to suit your specific operational needs.
Tapping Range: Flexible range settings include ±5%, ±2x2.5%, and ±4x2.5% to accommodate different load conditions.
Frequency: Compatible with both 50Hz and 60Hz to ensure versatility in usage.
Phases: Configurable as either three-phase or single-phase depending on application needs.
Connection Symbol: Options include Dyn11 or Yyn0, with custom configurations available upon request.
Short-circuit Impedance: Adheres to standard impedance values to ensure safety and reliability.
Environmental Adaptability: Suitable for altitudes up to 1000m and ambient temperatures up to 40°C.
Parameter Modulation: Should environmental conditions exceed typical ranges, we can adjust parameters to maintain optimal performance.
Chaotai Power's fully sealed oil immersed power transformer is renowned for its low loss, whisper-quiet operation, and impressive efficiency. This transformer delivers superior energy savings and significantly reduces environmental pollution.
The fully sealed design of this transformer eliminates the traditional oil conservator, with oil volume changes automatically managed by the corrugated sheet's elasticity within the oil tank. This innovation isolates the transformer from air exposure, providing substantial protection against oil degradation and insulation aging, thus enhancing reliability and minimizing maintenance during standard operations.
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 at the forefront of cutting-edge technology as a distinguished high-tech enterprise in the realm of electrical integration. With a dedicated team of seasoned experts in R&D, production, and service, boasting over 15 years of industry expertise, we are poised to deliver exceptional innovations and solutions.
Our comprehensive product portfolio encompasses high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, sophisticated gas-insulated switchgear, and robust substations. These state-of-the-art products are engineered to serve a diverse array of sectors, including energy and chemical industries, metal smelting, electric power grids, and industrial manufacturing. From academic institutions to medical and pharmaceutical sectors, municipal commerce, water conservancy, hydropower, road traffic management, and both commercial and residential spaces, our solutions are integral to modern infrastructure.
At the heart of Zhejiang ChaoTai, technological innovation and 'smart manufacturing' philosophies drive our relentless pursuit of excellence. By attracting top-tier technical talents, we continually elevate our core competitive advantage, delivering unmatched value and service to our clientele. Our journey from inception has been marked by remarkable achievements, evolving from nascent stages to industry excellence. We steadfastly adhere to a visionary business ethos: ensuring survival through unparalleled quality, capturing market share through stellar reputation, and maximizing efficiency through astute management. Embracing technology as our beacon and standardized management as our foundation, we commit to delivering exemplary quality and customer satisfaction, enhancing our market edge. Our unwavering principles are rooted in integrity, supreme service, and customer satisfaction. Continuous innovation and the pursuit of excellence underscore our mission to forge a reputable and reliable brand. We express heartfelt gratitude to our customers, whose dedication propels us forward. As we continue to innovate and excel, Zhejiang ChaoTai looks forward to collaborations that pave the way for 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.