Product Description



Advanced Oil Immersed Series Transformer:
The S11-M series fully sealed oil immersed power transformer, an innovation from Chaotai Power, offers unparalleled low loss, reduced noise, and exceptional efficiency. This remarkable design ensures substantial energy-saving benefits while minimizing environmental impact. In contrast to traditional oil immersed transformers, this state-of-the-art fully sealed variant eliminates the need for an oil conservator. Its oil volume is ingeniously managed through the flexible corrugated oil tank, which adjusts automatically, delivering improved reliability and reducing the need for regular maintenance. The transformer remains isolated from air, thereby significantly preventing oil degradation and insulation wear, guaranteeing enhanced operational dependability and longevity.
1. Power Capacity: Ranging from 25KVA to 2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable solutions to meet specific customer requirements. 2. Voltage Level: Offers 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV options. 3. Voltage Regulation Type: Available as Off-circuit or On-load configurations.
4. Tapping Range: Offers flexibility with options such as ±5% and 2x2.5%, ±4x2.5%.
5. Frequency: Compatible with both 50Hz and 60Hz settings.
6. Phases: Available in both Three-phase and Single-phase configurations.
7. Connection Symbol: Standard configurations include Dyn11 and Yyn0, with customizations available upon request.
8. Short-circuit Impedance: Adheres to Standard Impedance protocols.
9. Altitude parameters ensure optimal functioning below 1000m, and ambient temperature not exceeding 40°C. Should conditions deviate, parameter adjustments can be seamlessly modulated.
Compliance with industry standards is maintained for modifications.
Power capacity options range between 25KVA and 2500KVA.
Voltage Options: Comprehensive levels such as 10KY, 13.8KY, 20KY, 22KY, 30KV, 33KV, 35KV, and 36KV.
Voltage Level: Versatile array of options available.
Type of Voltage Regulation: Choose between Off-circuit and On-load types.
Tapping Range: Offers nuanced options such as ±5%, ±2x2.5%, and ±4x2.5%.
Frequency: Designed for operation at either 50Hz or 60Hz.
Phases: Configurations include both Three-phase and Single-phase.
Connection Symbol: Options include Dyn11 and Yyn0, with bespoke requests accommodated.
Short-circuit Impedance: Meets Standard Impedance requirements.
Altitude and Temperature: Suitable for altitudes under 1000m, with ambient temperatures not exceeding 40°C.
Adjustments to design parameters are possible to align with standard requirements if environmental conditions vary.
Chaotai Power’s fully sealed oil immersed power transformer offers distinct advantages including minimal loss, quiet operation, and high efficiency, contributing to valuable energy conservation and reduced environmental impact.
This advanced transformer, in contrast to conventional models, eliminates the oil conservator, utilizes a dynamic corrugated oil tank for oil volume adjustments, and remains isolated from air. This design substantially prevents oil degradation and insulation aging, promoting superior operational reliability and eliminating the need for regular 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 at the forefront of technological advancement as a high-tech enterprise specializing in electrical integration. With a seasoned team excelling in research, development, production, and service, the company boasts over 15 years of profound industry expertise.
Our remarkable array of products includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and state-of-the-art substations. These innovative solutions are widely sought after across an impressive range of sectors including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, medical and pharmaceutical sectors, municipal commerce, water conservancy, hydropower, road traffic management, as well as commercial and residential areas.
Embracing technological innovation under the philosophy of 'smart manufacturing,' we actively recruit top-tier technical talent, fortifying our core competitiveness to deliver unparalleled value to our clientele. Since inception, Zhejiang ChaoTai has transformed remarkably, achieving excellence by adhering to a modern business ethos of quality-driven survival, market responsiveness, reputation-fueled growth, and management-led efficiency. Our steadfast commitment revolves around 'technology as the guide, standardized management, superior quality, and customer satisfaction,' enhancing our market presence in China's power transmission and distribution sectors with ambitious goals of rapid advancement. With a foundation built on integrity, an unwavering commitment to quality, superior service, and customer satisfaction, we pursue excellence and continuous innovation, aiming to cultivate a trusted brand. Your trust fuels our progress, and we extend our gratitude to all patrons, both new and longstanding, for your support and loyalty. Zhejiang ChaoTai Complete Equipment Co., Ltd., alongside Senhang Technology, eagerly anticipates collaborating with you to forge 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.