Product Description



Oil Immersed Series Transformer: Experience a new era of energy transformation with our oil-immersed series that promises efficiency and sustainability.
The S11-M series fully sealed oil-immersed power transformer, developed and expertly crafted by Zhejiang Chaotai, boasts unparalleled advantages. Its low loss, minimal noise, and remarkable efficiency signify a breakthrough in energy-saving, significantly reducing pollution. The fully sealed design eliminates the need for an oil conservator, with oil volume changes automatically adjusted and compensated by the corrugated oil tank's elasticity. This innovative transformer is isolated from external air, effectively preventing oil deterioration and insulation aging, thereby enhancing operational reliability and eliminating the need for regular maintenance.
1. Power Capacity: Ranging from 25 to 2500KVA, with flexibility to accommodate 24KV, 30KV, 33KV, 35KV, 36KV, and other specifications tailored to customer requirements. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Available in both Off-circuit and On-load configurations.
4. Tapping Range: A versatile range offering ±5%, ±2x2.5%, and ±4x2.5% adjustments to meet diverse operational needs.
5. Frequency: Designed to operate seamlessly at both 50Hz and 60Hz frequencies.
6. Phases: Flexible options available in both three-phase and single-phase configurations.
7. Connection Symbol: Configurable as Dyn11 or Yyn0, with custom requests accommodated.
8. Short-circuit Impedance: Engineered to meet standard impedance requirements, ensuring reliable performance.
9. Altitude: Designed for optimal performance at altitudes not exceeding 1000m and ambient temperatures below 40°C. If conditions differ, parameters will be adjusted in
accordance with standard regulations to ensure consistent functionality.
Power Capacity: Expertly crafted to provide a range from 25-2500KVA, tailored for varied needs.
Voltage Levels: Customizable options including 10KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV to fit specific power requirements.
Voltage Level: Featuring a spectrum of options to suit your unique distribution needs.
Type of Voltage Regulation: Choose between Off-circuit or On-load for optimal control and efficiency.
Tapping Range: Featuring a comprehensive range for fine-tuning: ±5%, ±2x2.5%, ±4x2.5%.
Frequency: Operates efficiently at either 50Hz or 60Hz, accommodating various grid requirements.
Phases: Available in both three-phase and single-phase, engineered for diverse applications.
Connection Symbol: Options include Dyn11 and Yyn0, with flexibility for specific requests.
Short-circuit Impedance: Built to match standard impedance, ensuring dependability and safety.
Altitude: Optimized for settings up to 1000m and temperatures not exceeding 40°C.
If operational conditions exceed these parameters, we will adjust settings in accordance with standard practices to maintain performance.
The fully sealed oil-immersed power transformer from Chaotai Power offers low loss, minimal noise, and exceptional efficiency. Achieving outstanding energy-saving results, it also reduces environmental impact significantly.
This fully sealed transformer surpasses ordinary oil-immersed models by eliminating the need for an oil conservator. The oil volume is automatically adjusted through the corrugated oil tank's elasticity, keeping the transformer isolated from air. This design effectively prevents oil degradation and insulation aging, boosting operational reliability and minimizing maintenance requirements.
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 innovation as a distinguished high-tech enterprise, masterfully navigating the realm of electrical integration. Boasting a formidable team dedicated to research and development, production, and unparalleled service, we pride ourselves on over 15 years of invaluable industry expertise.
Our exceptional product lineup encompasses high-voltage solid-state soft starters, sophisticated capacitor cabinets, cutting-edge high and low voltage switchgear, advanced gas-insulated switchgear, and robust substations. These state-of-the-art products seamlessly integrate into a myriad of sectors, including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, esteemed universities and research institutions, the medical and pharmaceutical landscape, municipal commerce, water conservancy, hydropower, road traffic systems, and diverse commercial and residential environments.
Dedicated to relentless technological advancement and embracing the 'smart manufacturing' ethos, we continually attract top-tier technical talent to bolster our core competitive edge. Our mission is to deliver unparalleled service to our clients while steadfastly working towards becoming the preeminent brand in our industry. From humble beginnings, our company has soared, evolving from inception to excellence through our unwavering commitment to innovation. Our modern business strategy thrives on quality-driven survival, market-oriented growth, reputation-led development, and management-fueled efficiency. We steadfastly adhere to the guiding principles of 'technology leadership, standardized management, superior quality, and customer-centric satisfaction.' These tenets fortify our market position, empowering us to exceed in serving China's electric power transmission and distribution sectors with renewed vigor and ambition. Anchored in integrity, prioritizing quality, and elevating service, customer satisfaction remains our eternal commitment. Our relentless pursuit of excellence, innovation, and brand trustworthiness defines our development objectives. Your continued recognition fuels our passion. We extend our heartfelt gratitude to all our esteemed customers for their unwavering support and affection. Together with Senhang Technology, we eagerly anticipate forging 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.