Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a pinnacle of innovation by Zhejiang Chaotai Complete Equipment Co., Ltd. Our fully sealed oil-immersed power transformer boasts an array of benefits, including unparalleled low loss, whisper-quiet operation, and exceptional efficiency. This powerhouse of technology is engineered to achieve remarkable energy savings and significantly minimize environmental impact. Unlike conventional transformers, our design eliminates the need for an oil conservator. The adaptability of the corrugated oil tank allows for dynamic oil volume adjustment, ensuring a seamless, self-regulating experience. By being hermetically sealed from the atmosphere, this transformer mitigates oil degradation and insulation aging, substantially boosting operational reliability while drastically reducing the need for routine maintenance.
1. Power Capacity: Ranging from 25KVA to an impressive 2500KVA, available in voltage variations like 24KV, 30KV, 33KV, 35KV, 36KV, and custom specifications to meet diverse client requirements. 2. Voltage Level: Offering flexibility with options like 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load mechanisms to suit specific application needs.
4. Tapping Range: Precision engineered with options of ±5%, ±2x2.5%, ±4x2.5% for optimal performance.
5. Frequency: Compatible with both 50Hz and 60Hz grid requirements.
6. Phases: Available in both Three-phase and single-phase configurations.
7. Connection Symbol: Configurable as Dyn11, Yyn0, or as per specific requests to ensure seamless integration.
8. Short-circuit Impedance: Designed with industry-standard impedance levels for robust performance.
9. Altitude: Operational up to 1000 meters above sea level, with an ambient temperature threshold of 40°C. If standard conditions are surpassed, parameters will be adjusted accordingly.
All adaptations are performed in strict accordance with international standards to guarantee reliability and safety.
Power Capacity: From a versatile 25KVA to a formidable 2500KVA.
Voltage Level Options: Extending from 10KV to 22KV, and more, including 30KV, 33KV, 35KV, and 36KV to cater to an array of requirements.
Voltage Level:
Type of Voltage Regulation: Available in both Off-circuit and On-load configurations.
Tapping Range: Offers ±5%, ±2x2.5%, ±4x2.5% for tailored operational efficiency.
Frequency Compatibility: Suited for either 50Hz or 60Hz systems.
Phases: Offered in both Three-phase and single-phase models.
Connection Symbol: Configurations include Dyn11, Yyn0, and customized options as per requirements.
Short-circuit Impedance: Adheres to standard impedance for secure and stable performance.
Altitude & Temperature: Thrives at altitudes up to 1000m and temperatures not exceeding 40°C.
Should conditions exceed specified limits, parameter adjustments will be made in line with established standards.
Chaotai Power introduces a cutting-edge fully sealed oil-immersed power transformer, engineered to deliver low loss, reduce noise, and maximize efficiency, leading to substantial energy savings and minimized environmental impact.
This advanced transformer design removes the need for an oil conservator. The corrugated oil tank's unique elasticity allows for precise oil volume regulation, ensuring the system remains isolated from external elements. This isolation prevents oil degradation and insulation aging, which enhances operational reliability while reducing maintenance needs during standard 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 as a beacon of innovation in the realm of electrical integration. As a high-tech enterprise, we pride ourselves on our dynamic and skilled R&D, production, and service teams, boasting over 15 years of dedicated industry experience.
Our extensive portfolio features high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, advanced gas-insulated switchgear, and sophisticated substations. These products are integral across myriad sectors, including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, educational and research institutions, medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower, road traffic management, as well as commercial and residential developments.
Driven by a commitment to technological innovation, Zhejiang ChaoTai embraces the 'smart manufacturing' philosophy. We actively recruit top-tier technical talent to fortify our core competencies and deliver unparalleled value to our clientele. Our journey, marked by relentless progress from inception to excellence, is fueled by a business ethos centered on quality. We aim for market leadership through stellar reputation, operational efficiency, and management prowess. Our credo, 'technology as the guide, standardized management, and customer satisfaction,' underpins our relentless pursuit of market competitiveness in China's electric power transmission and distribution sectors. Upholding integrity, prioritizing quality, emphasizing exceptional service, and ensuring customer satisfaction form the bedrock of our mission. Our unwavering dedication to excellence and innovation propels us towards building a brand synonymous with trust. We extend heartfelt gratitude to our esteemed patrons, both new and longstanding, whose support and affection empower us. Together with Senhang Technology, we are excited to forge a future characterized by shared success and visionary collaboration.
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.