Product Description



Oil Immersed Series Transformer:
The S11-M series fully sealed oil immersed power transformer, masterfully engineered by Chaotai Power, boasts remarkable features including low loss, muted operation, and superior efficiency. It is designed to deliver exceptional energy-saving performance while minimizing environmental impact. Distinct from conventional oil immersed transformers, this innovative version eliminates the oil conservator. The oil volume dynamically adjusts through the flexible, corrugated oil tank, ensuring the transformer's separation from air. This design mitigates oil degradation and slows insulation aging, enhancing operational reliability and virtually eliminating maintenance needs during normal operation.
1. Power Capacity: 25-2500KVA, 24KV, 30KV, 33KV, 35KV, 36KV, with additional options tailored to customer specifications. 2. Voltage Level: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Options include Off-circuit or On-load.
4. Tapping Range: ±5% with increments of 2x2.5% or ±4x2.5%.
5. Frequency: Available in 50Hz or 60Hz.
6. Phases: Configurable for Three or Single phase systems.
7. Connection Symbol: Options include Dyn11, Yyn0, or customized upon request.
8. Short-circuit Impedance: Standard Impedance.
9. Altitude: Suitable for installations at altitudes not exceeding 1000m, with ambient temperatures maintained below 40°C. If operational conditions fall outside these parameters, we will adjust specifications to meet standard requirements.
Any deviation from standard conditions prompts us to adjust specifications to meet standard requirements.
Power Capacity: Spanning 25-2500KVA to suit diverse applications.
Voltage Ratings: IOkYAky, 1 OY, D SKY, 2OKY, 22KY, 2ANV, 30KV, 33KV, 35KV, 36KV.
Voltage Level Options:
Voltage Regulation: Choose between Off-circuit and On-load adjustments.
Tapping Range: Flexible adjustments of ±5%, ±2x2.5%, ±4x2.5%.
Frequency Selection: 50Hz or 60Hz.
Phase Configuration: Available in Three or Single phase.
Connection Symbol Choices: Dyn11, Yyn0, or customized as per client needs.
Short-circuit Impedance: Adheres to Standard Impedance metrics.
Operational Conditions: Altitude up to 1000m, ambient temperature up to 40°C.
Should standard conditions not be met, we will tailor specifications to ensure compliance with industry standards.
The fully sealed oil immersed power transformer from Chaotai Power is designed to deliver minimal loss, reduced noise, and peak efficiency, paving the way for outstanding energy savings and lowered environmental impact.
In contrast to standard oil immersed transformers, the fully sealed design eliminates the oil conservator. It deftly manages oil volume changes with the corrugated oil tank's elasticity, keeping the transformer air-isolated to prevent oil degradation and slow down insulation aging. This results in robust operational reliability and maintenance-free normal 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. stands as a beacon of innovation and excellence in the realm of electrical integration. Proudly recognized as a high-tech enterprise, we boast a dynamic blend of professional R&D, state-of-the-art production, and unparalleled service teams, all of whom bring over 15 years of industry mastery to the table.
Our distinguished product repertoire features high-voltage solid-state soft starters, sophisticated capacitor cabinets, versatile high and low voltage switchgear, advanced gas-insulated switchgear, and robust substations. These cutting-edge solutions power a multitude of sectors, including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower, road traffic management, and diverse commercial and residential applications.
Driven by an unwavering commitment to technological innovation and our forward-thinking 'smart manufacturing' philosophy, we are dedicated to attracting top-tier technical talents. This strategy not only bolsters our core competitiveness but also ensures the delivery of unmatched value to our customers. From our humble beginnings, we have transformed and ascended to the pinnacle of excellence through relentless innovation, steadfast adherence to quality, and a market-driven approach that emphasizes reputation and efficiency. Our management ethos is guided by 'technology as the guide, standardized management, excellent quality, and customer satisfaction.' These principles enhance our market prowess and align with our mission to elevate China's electric power and grid sectors with aspirations of greater speed, strength, and ambition. At the heart of our values lie integrity, quality, supreme service, and unwavering customer satisfaction. Our journey towards excellence and innovation is grounded in building a brand that commands trust and recognition. We extend our heartfelt gratitude to our esteemed customers, both new and longstanding, for their unwavering support and affection. Zhejiang ChaoTai Complete Equipment Co., Ltd. eagerly anticipates forging a brighter future together with you, 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.