Product Description



Oil Immersed Series Transformer:
The S11-M Series fully sealed oil immersed power transformer, innovatively developed and manufactured by Chaotai Power, stands out with its remarkable features of low loss, minimal noise, and outstanding efficiency. This high-performance transformer is designed to deliver excellent energy savings and reduce environmental pollution. Unlike traditional oil immersed transformers, this advanced model eliminates the need for an oil conservator. Instead, the transformer smartly adapts to changes in oil volume through the elasticity of its corrugated oil tank sheets. This unique design feature ensures the transformer remains isolated from the air, effectively preventing oil degradation and insulation aging. As a result, it significantly enhances operational reliability and eliminates the need for maintenance during regular operation.
1. Power Capacity: From 25 to an impressive 2500KVA, with voltage options ranging from 24KV to 36KV, and customizable to meet specific customer requirements. 2. Voltage Level: Flexible configurations available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation to suit your needs.
4. Tapping Range: Offers an adjustable range of ±5%, with options for 2x2.5% and ±4x2.5%, providing flexibility in voltage settings.
5. Frequency: Compatible with both 50Hz and 60Hz power systems.
6. Phases: Available in both three-phase and single-phase configurations, catering to diverse applications.
7. Connection Symbol: Standard configurations of Dyn11, Yyn0, or customizable as per request.
8. Short-circuit Impedance: Designed to meet standard impedance requirements, ensuring reliable performance.
9. Altitude: Suitable for altitudes not exceeding 1000 meters, with temperature conditions not surpassing 40°C for optimal performance.
In cases where standard conditions can't be met, parameters will be adjusted to comply with standard specifications.
Power Capacity: Offers a versatile range from 25 to 2500KVA, accommodating various power needs.
Voltage Level: Flexible options from 10KV up to 36KV, ensuring adaptability to different requirements.
Voltage Level:
Type of Voltage Regulation: Adaptable with Off-circuit or On-load options to suit different operational demands.
Tapping Range: Provides a flexible ±5% with additional 2x2.5% and ±4x2.5% options for precise voltage control.
Frequency: Fully compatible with both standard 50Hz and 60Hz frequency systems.
Phases: Offering robust three-phase and versatile single-phase options to meet varied application needs.
Connection Symbol: Configurable with Dyn11, Yyn0, or tailored according to requirements.
Short-circuit Impedance: Built to adhere to standard impedance levels for consistent performance.
Altitude: Optimally designed for use at altitudes up to 1000 meters, with ambient temperatures not exceeding 40°C.
When standard conditions are not met, we will adjust parameters to align with standard protocols.
Chaotai Power's fully sealed oil immersed power transformer is engineered to deliver exceptional advantages in terms of low energy loss, subdued noise levels, and superior efficiency. This progressive design not only realizes significant energy savings but also contributes to environmental preservation by reducing pollution.
In comparison to conventional oil immersed transformers, our fully sealed model does away with the traditional oil conservator. It ingeniously accommodates oil volume changes via the flexible corrugated sheets of the oil tank, effectively isolating the transformer from air exposure. This innovation prevents oil deterioration and insulation aging, boosts operational reliability, and eradicates the need for 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. shines as a beacon of innovation in the electrical integration industry. As a high-tech enterprise, we proudly boast a dedicated and professional team specializing in research and development, production, and unparalleled customer service. With over 15 years of expertise, we are committed to excellence and technological advancement.
Our diverse product lineup features high-voltage solid-state soft starters, robust capacitor cabinets, versatile high and low voltage switchgear, advanced gas-insulated switchgear, and comprehensive substation solutions. These cutting-edge products find applications across an extensive range of sectors, including energy, chemicals, metal smelting, power grids, industrial manufacturing, academia, medical and pharmaceutical industries, municipal and commercial domains, water conservancy and hydropower, road traffic management, and residential and commercial infrastructures.
Embracing a philosophy of 'smart manufacturing,' we are dedicated to technological innovation and growth by attracting top-tier technical talent, enhancing our core competitiveness and delivering valuable services to our esteemed clientele. Since our inception, we have transformed from a humble beginning to achieving industry excellence. Our forward-thinking approach revolves around maintaining quality, being market-driven, developing a sterling reputation, and optimizing efficiency through management excellence. We are steadfast in our commitment to 'technology as the beacon, standardized management, superior quality, and customer satisfaction,' ensuring our competitive edge in the market. Our ambition is to empower China's electric power and grid transmission sectors with unparalleled speed, strength, and ambition. Integrity, quality, supreme service, and relentless pursuit of customer satisfaction remain our guiding principles. We strive for excellence, foster innovation, and aim to establish a brand synonymous with trust. Your support fuels our journey. We extend heartfelt gratitude to our loyal and new customers, and look forward to collaborating with you 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.