Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a state-of-the-art, fully sealed oil-immersed power transformer by Chaotai Power. This marvel is engineered for excellence with its superior low-loss, low-noise, and high-efficiency capabilities. Experience significant energy savings and reduced environmental impact. Unlike conventional models, this transformer eliminates the need for an oil conservator. The dynamic oil volume is effortlessly managed by the intelligent design of the corrugated oil tank, offering automatic adjustments and compensation. Our innovation isolates the transformer from air exposure, substantially delaying oil degradation and insulation aging. This enhances operational reliability and ensures maintenance-free performance under standard conditions.
1. Power Capacity: Ranging from 25 to 2500KVA, adaptable for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to meet specific customer requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV.
4. Tapping Range: ±5%, 2x2.5%, ±4x2.5%
5. Frequency: Compatible with 50Hz or 60Hz
6. Phases: Available in Three or Single phase configurations
7. Connection Symbol: Dyn11, Yyn0 (or customized as needed)
8. Short-Circuit Impedance: Standard Impedance
9. Altitude suitability: Operational at altitudes not exceeding 1000m, with an ambient temperature threshold of 40°C. Should these parameters be surpassed,
we will adjust the transformer specifications to align with industry standards.
Power Capacity: Expertly designed to support 25-2500KVA
Voltage Level: Flexible to accommodate 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV
Voltage Level:
Type of Voltage Regulation: Options include Off-circuit or On-load regulation
Tapping Range: Precision settings available at ±5%, ±2x2.5%, ±4x2.5%
Frequency: Versatile compatibility with either 50Hz or 60Hz
Phases: Configurable for Three or Single phase systems
Connection Symbol: Options include Dyn11, Yyn0 (or per request)
Short-Circuit Impedance: Engineered to standard impedance
Suitable Conditions: Operates efficiently at altitudes below 1000m and ambient temperatures up to 40°C
In circumstances where these conditions are exceeded, parameter adjustments will be made to adhere to industry standards.
At the forefront of innovation, the fully sealed oil-immersed power transformer by Chaotai Power is designed with low-loss, low-noise, and high-efficiency attributes, delivering exceptional energy conservation and minimal environmental impact.
The fully sealed transformer by Chaotai Power surpasses typical oil-immersed transformers by eliminating the oil conservator. The transformer adeptly manages oil volume fluctuations through the elasticity of its corrugated oil tank, effectively isolating it from air exposure to prolong oil life and prevent insulation degradation. This design boosts operational reliability and negates the need for maintenance during regular 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

Welcome to Zhejiang ChaoTai Complete Equipment Co., Ltd., a pioneering high-tech enterprise dedicated to the forefront of electrical integration. With over 15 years of industry experience, our esteemed professional team excels in research and development, production, and service, ensuring cutting-edge solutions for our clientele.
Our diverse portfolio of products includes state-of-the-art high-voltage solid-state soft starters, advanced capacitor cabinets, comprehensive high and low voltage switchgear, innovative gas-insulated switchgear, and robust substations. Our offerings are trusted and employed across a wide spectrum of industries such as energy and chemical sectors, metal smelting, electric power grids, industrial manufacturing, academic and research institutions, healthcare and pharmaceuticals, municipal commerce, water conservancy and hydropower, road traffic systems, and both commercial and residential developments.
We are staunch advocates of technological innovation, embracing the 'smart manufacturing' ethos. By actively recruiting high-caliber technical talents, we aim to substantially bolster our core competencies, delivering unparalleled value to our customers while aspiring to be the industry's leading brand. Since inception, we have transformed from inception to excellence, guided by a commitment to progress and modern business practices. Our philosophy is rooted in quality-driven survival, reputation-led development, and efficiency-focused management. We remain steadfast in our commitment to 'technology as the compass, standardized management, superior quality, and customer satisfaction,' all crucial to our competitive edge in the market. Our dedication serves China's power transmission and distribution sectors with increased speed, strength, and ambition. Integrity and quality serve as our pillars, while exceptional service and customer satisfaction remain our eternal objectives. Striving for excellence and consistent innovation in building a reliable brand, your acknowledgment fuels our passion. We deeply appreciate the enduring support and loyalty from our new and longstanding customers. Together with Senhang Technology, we eagerly anticipate a collaborative journey towards a brighter future.
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.