Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series fully sealed oil-immersed power transformer, a masterpiece by Chaotai Power. This revolutionary transformer is designed with cutting-edge technology to deliver an unparalleled trifecta of low loss, minimal noise, and exceptional efficiency. Experience remarkable energy savings and environmental preservation with this innovative solution. Distinct from traditional oil-immersed transformers, this fully sealed marvel eliminates the oil conservator, ingeniously adjusting oil volume through the dynamic elasticity of its corrugated oil tank. With its air-isolated design, it significantly mitigates oil deterioration and insulation aging, ensuring superior operational reliability and virtually maintenance-free performance during normal operation.
1. Power Capacity: Available from a versatile range of 25-2500KVA, with voltage levels of 24KV, 30KV, 33KV, 35KV, 36KV, and custom specifications to meet diverse customer demands. 2. Voltage Level: Offering flexibility with multiple options including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV, catering to a wide array of voltage requirements. 3. Type of Voltage Regulation: Choose between the precision of off-circuit regulation or the adaptability of on-load regulation, tailored to your specific needs.
4. Tapping Range: Exceptional versatility with options for ±5%, ±2x2.5%, and ±4x2.5% tapping range adjustments, providing precise control over voltage management.
5. Frequency: Designed to accommodate both 50Hz and 60Hz frequencies, ensuring compatibility with various global standards.
6. Phases: Available in both three-phase and single-phase configurations, offering flexibility for different application scenarios.
7. Connection Symbol: Configurable to Dyn11 or Yyn0, or tailored to your specific request, facilitating seamless integration into existing systems.
8. Short-Circuit Impedance: Engineered with standard impedance to guarantee safety and performance under short-circuit conditions.
9. Altitude and Temperature: Optimized for altitudes not exceeding 1000m and ambient temperatures not exceeding 40°C. If site conditions differ, we will expertly modulate parameters to meet your needs.
Adhering to standard specifications to ensure optimal performance in diverse environments.
Power Capacity: Spanning an impressive range of 25-2500KVA, our transformers accommodate a multitude of power requirements.
Versatile Voltage: Choose from an extensive voltage spectrum including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, tailored to your precise power needs.
Voltage Level:
Voltage Regulation: Opt for off-circuit or on-load regulation to achieve the desired voltage control and stability.
Tapping Range: Offering a precise range of adjustments with ±5%, ±2x2.5%, and ±4x2.5% options.
Frequency: Compatible with both 50Hz and 60Hz for diverse operational requirements.
Phases: Available in versatile three-phase or single-phase configurations to suit various applications.
Connection Symbol: Customizable to Dyn11 or Yyn0 formats, or as per your specific requirements.
Short-Circuit Impedance: Designed with standard impedance for reliable performance during short-circuit events.
Altitude and Temperature: Ideal for altitudes up to 1000m and ambient temperatures not exceeding 40°C.
Standard Compliance: Parameters are adjustable in accordance with standard specifications for optimal adaptability.
Discover the fully sealed oil-immersed power transformer from Chaotai Power, celebrated for its low loss, minimal noise, and outstanding efficiency. Achieve exceptional energy savings and environmental protection with this state-of-the-art solution.
Engineered for excellence, this fully sealed transformer foregoes the traditional oil conservator, dynamically adjusting oil volume through the innovative elasticity of the corrugated oil tank. Its air-isolated design prevents oil deterioration and insulation aging, enhancing reliability and eliminating 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. is a premier high-tech enterprise dedicated to the realm of electrical integration. Boasting a distinguished professional team specializing in R&D, production, and service, we leverage over 15 years of invaluable experience to excel in the industry.
Our impressive array of products encompasses high-voltage solid-state soft starters, capacitor cabinets, a range of high and low voltage switchgear, advanced gas-insulated switchgear, and state-of-the-art substations. Our solutions are at the heart of diverse industries including energy, chemicals, metal smelting, power grids, industrial manufacturing, academia, medical and pharmaceutical sectors, municipal commerce, water management, hydropower, road traffic, as well as residential and commercial domains.
Driven by technological innovation and a 'smart manufacturing' philosophy, we actively attract top-tier technical talents to bolster our core strength and deliver unparalleled customer value. Our relentless pursuit of excellence has seen us transform from inception to industry leader. We champion innovation, adhering to a modern business ethos that emphasizes quality for survival, market orientation for growth, reputation for development, and management for efficiency. Committed to advancing China's power and grid sectors, we prioritize 'technology leadership, standardized management, superior quality, and customer satisfaction.' Integrity forms our foundation, exceptional quality is our benchmark, supreme service is our promise, and customer satisfaction is our ultimate goal. Embracing excellence and innovation, we are steadfast in building a trustworthy brand. Your acknowledgment fuels our journey. We extend heartfelt gratitude to our loyal patrons and eagerly anticipate collaborating with you towards a brighter future. Together, with Senhang Technology, we will forge pathways to remarkable achievements.
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.