Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a groundbreaking fully sealed oil immersed power transformer by Chaotai Power. This state-of-the-art transformer boasts remarkable attributes, including minimal energy loss, whisper-quiet operation, and superior efficiency. These features culminate in exceptional energy savings and a significant reduction in environmental impact. Innovative in its design, this transformer eliminates the traditional oil conservator. Instead, it ingeniously utilizes the corrugated sheet's elasticity within the oil tank to automatically adjust and compensate for oil volume changes. This design keeps the transformer isolated from the air, effectively preventing oil degradation and insulation aging, thereby boosting operational reliability and eliminating the need for maintenance during normal operations.
1. Power Capacity: 25-2500KVA, 24KV, 30KV, 33KV, 35KV, 36KV, and other specifications tailored to customer requirements. 2. Voltage Level: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load alternatives.
4. Tapping Range: Versatile settings include ±5%, ±2x2.5%, and ±4x2.5%.
5. Frequency: Available in both 50Hz and 60Hz variants.
6. Phases: Options for both three-phase and single-phase configurations.
7. Connection Symbol: Dyn11, Yyn0 (or tailored as requested).
8. Short-circuit Impedance: Follows standard impedance specifications.
9. Altitude: Suitable for locations not exceeding 1000m above sea level, with ambient temperatures not surpassing 40°C. If these conditions are not met, parameter adjustments will be made to comply with standards.
We ensure compliance with set standards for unparalleled performance.
Power Capacity: Ranging from 25-2500KVA to meet diverse needs.
IOkY Aky 10Y I a. D SKY .20KY 22KY 2ANV 30KV, 33KV, 35KV, 36KV.
Voltage Level: Comprehensive range to cover your requirements.
Type of Voltage Regulation: Adaptable to Off-circuit or On-load applications.
Tapping Range: Select from ±5%, ±2x2.5%, or ±4x2.5% to suit your needs.
Frequency: Compatible with both 50Hz and 60Hz systems.
Phases: Configurable for either three-phase or single-phase setups.
Connection Symbol: Dyn11, Yyn0 (customizable as required).
Short-circuit Impedance: Adheres to standard impedance guidelines.
Altitude Suitability: Engineered for performance up to 1000m and temperatures up to 40°C.
Should conditions exceed these parameters, adjustments will be made to align with industry standards.
Chaotai Power's fully sealed oil immersed transformer is a marvel of modern engineering, delivering low loss, minimal noise, and outstanding efficiency for optimal energy conservation and environmental protection.
Unlike conventional transformers, this advanced model omits the oil conservator, utilizing the corrugated oil tank's elasticity for automatic oil volume adjustment and compensation. This design innovation ensures isolation from air, mitigating oil degradation and insulation aging, thus enhancing operational reliability and negating maintenance in 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. proudly stands as a beacon of high-tech innovation in the realm of electrical integration. With a dedicated and highly skilled team of researchers, developers, and service professionals boasting over 15 years of illustrious industry experience, we lead the charge in groundbreaking advancements.
Our premier product lineup encompasses a diverse range of industry-leading solutions, including high-voltage solid-state soft starters, state-of-the-art capacitor cabinets, versatile high and low voltage switchgear, cutting-edge gas-insulated switchgear, and robust substations. These advanced products are trusted across a multitude of sectors, such as the dynamic energy and chemical industries, the demanding metal smelting processes, and the essential electric power grids. Additionally, our solutions fuel the innovation of industrial manufacturing, foster the growth of universities and research institutions, support the vital operations of medical and pharmaceutical sectors, enhance municipal commerce, and fortify the infrastructures of water conservancy and hydropower. Our influence extends to road traffic management and enriches commercial and residential developments, showcasing our commitment to excellence and versatility.
Embracing a philosophy of relentless technological innovation and 'smart manufacturing,' our company zealously recruits top-tier technical talents to bolster core competencies. This strategic focus positions us to deliver unparalleled value and elevate the industry standard. From our humble inception to our current status of preeminence, we have continually evolved—transforming from nothing into something, and then from something to exemplary excellence. Our steadfast dedication to progress is mirrored in our commitment to crafting a superior brand renowned throughout the sector. By adhering to a business ethos that marries quality-driven survival, market-centric development, and reputation-fueled expansion, we achieve efficiency and excellence through meticulous management. Our resolve centers around using technology as a guiding beacon, standardized management as a cornerstone, exceptional quality as our hallmark, and customer satisfaction as our unwavering pledge. We eagerly aim to elevate the standards of China's electric power and grid sectors with swift, robust, and ambitious objectives. Upholding integrity as our foundation, we prioritize quality, elevate service, and guarantee customer satisfaction as our eternal mission. Our pursuit of excellence and relentless innovation propels us to build a brand that is synonymous with trust and reliability. We cherish your recognition as our driving force, expressing heartfelt gratitude to all our valued new and long-standing customers for their unwavering support and affection. Together with Senhang Technology, we aspire to forge a brighter future, hand in hand.
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.