Product Description



Oil Immersed Series Transformer: Embark on a journey of unparalleled performance with our oil-immersed series transformers, designed to meet the most demanding outdoor power distribution needs.
The S11-M series fully sealed oil immersed power transformer by Chaotai Power is a marvel of modern engineering, offering low loss, reduced noise, and exceptional energy efficiency. This remarkable transformer not only promises a superior energy-saving effect but also significantly curtails pollution. Unlike traditional models, it eliminates the need for an oil conservator, with oil volume changes being expertly managed through the elasticity of its corrugated oil tank. Enclosed from ambient air, it effectively mitigates oil deterioration and insulation aging, bolstering operational reliability and ensuring maintenance-free performance under normal conditions.
1. Power Capacity: With capacities ranging from 25 to 2500KVA, and voltage capabilities of 24KV, 30KV, 33KV, 35KV, and 36KV, our transformers cater to diverse power distribution requirements. Customization is available to meet specific client needs. 2. Voltage Level: Our offerings include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between off-circuit and on-load regulation to suit your operational preferences.
4. Tapping Range: Experience flexibility with options of ±5%, 2x2.5%, and ±4x2.5% tapping adjustments.
5. Frequency: Available in both 50Hz and 60Hz, ensuring compatibility with various power systems worldwide.
6. Phases: Designed for versatility, our transformers support both three-phase and single-phase applications.
7. Connection Symbol: Configurable to Dyn11, Yyn0, or as per your specific requirements.
8. Short-circuit Impedance: Standard impedance levels are maintained to ensure optimal performance.
9. Altitude: Guaranteed performance at altitudes not exceeding 1000m, with ambient temperatures up to 40°C. If conditions deviate, parameter adjustments are available to align with established standards.
Our commitment is to adapt and modulate parameters to meet industry standards, ensuring consistent and reliable performance regardless of environmental challenges.
Power Capacity: Our range extends from 25 to 2500KVA, ensuring that we meet a wide spectrum of power distribution needs.
Voltage Specifications: Supporting 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV configurations.
Voltage Level: Crafted to accommodate various voltage levels, ensuring compatibility and adaptability across different systems.
Voltage Regulation: Options include off-circuit or on-load regulation, providing flexibility and precision control over voltage settings.
Tapping Range: Our transformers feature a versatile tapping range of ±5%, ±2x2.5%, and ±4x2.5% for fine-tuned power distribution.
Frequency Options: Available in 50Hz or 60Hz, ensuring global compatibility and efficiency.
Phases: Tailored for both three-phase and single-phase applications, offering comprehensive solutions for various scenarios.
Connection Symbol: Configurable options include Dyn11, Yyn0, and custom configurations as required.
Short-circuit Impedance: Engineered to standard impedance specifications, providing reliable and consistent performance.
Environmental Conditions: Designed for altitudes up to 1000m and temperatures not exceeding 40°C, with adaptability for other conditions as needed.
We offer parameter adjustments in accordance with industry standards to ensure optimum performance under varying conditions.
Our fully sealed, oil-immersed power transformers by Chaotai Power are distinguished by their low loss, minimal noise, and high efficiency. These attributes contribute to significant energy savings and reduced environmental impact.
When compared to traditional oil-immersed transformers, our fully sealed models eliminate the need for an oil conservator. They automatically adjust oil volume through the corrugated oil tank's elasticity, isolating the unit from air exposure. This design innovation prevents oil deterioration and insulation aging, enhancing operational reliability and eliminating routine maintenance during regular 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 proudly as a high-tech leader in the realm of electrical integration. With a formidable team dedicated to R&D, production, and service, we bring over 15 years of distinguished industry expertise to the table.
Our flagship products encompass a range of cutting-edge solutions including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These products are essential across a multitude of sectors, supporting energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, and more. Our reach extends into universities and research institutions, the medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower, road traffic systems, and both commercial and residential landscapes.
Firmly dedicated to technological advancement, we embrace the 'smart manufacturing' philosophy, drawing in top-tier technical talent to elevate our core competencies. Our mission is to deliver unparalleled value to our clients while forging an esteemed brand within our industry. From inception to excellence, our journey has been marked by continuous progress and innovation. We steadfastly adhere to a business model grounded in quality, market responsiveness, reputational growth, and operational proficiency. With our guiding principles of 'technology-led initiatives, standardized management, superior quality, and customer fulfillment,' we are enhancing our competitive edge in the market. Our commitment is unwavering: to excel in serving China's electric power and grid sectors with unmatched speed, strength, and ambition. Upholding integrity, prioritizing quality, delivering exceptional service, and ensuring client satisfaction remain our core tenets. Our pursuit of excellence and perpetual innovation fuels the creation of a dependable brand. Your trust propels us forward, and we extend heartfelt gratitude to both new and loyal clients for your steadfast support. Together with Senhang Technology, let's unite our efforts to craft a promising 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.