Product Description



Oil Immersed Series Transformer:
The S11-M series fully sealed oil immersed power transformer, a remarkable innovation by Chaotai Power, is engineered to deliver outstanding performance with a focus on sustainability. Designed to minimize energy loss and noise pollution, this transformer boasts high efficiency, contributing significantly to energy conservation while reducing environmental impact. Distinctively, this advanced transformer eliminates the need for an oil conservator, leveraging a corrugated oil tank that dynamically adjusts and compensates for oil volume changes through its elastic corrugated sheet. This design ensures the transformer remains isolated from air exposure, effectively preventing oil deterioration and insulation aging. As a result, it enhances operational reliability, offering a maintenance-free experience during standard operations.
1. Power Capacity: Ranges from 25-2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable specifications to meet specific customer requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation for optimal performance.
4. Tapping Range: Offers flexibility with ±5%, ±2x2.5%, or ±4x2.5% adjustments.
5. Frequency: Compatible with both 50Hz and 60Hz frequencies.
6. Phases: Available in both three-phase and single-phase configurations.
7. Connection Symbol: Configured as Dyn11, Yyn0, or tailored as per client requests.
8. Short-Circuit Impedance: Meets standard impedance requirements for dependable performance.
9. Altitude: Suitable for altitudes not exceeding 1000m, and ambient temperatures not surpassing 40°C. If these conditions are not met, we offer parameter adjustments aligned with industry standards.
We tailor parameter modulation in accordance with standard guidelines to ensure optimal performance across various conditions.
Power Capacity: Spanning 25-2500KVA to cater to diverse needs.
Voltage Levels: Options include 10KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Regulation Type:
Select Off-circuit or On-load voltage regulation for customized control.
Tapping Range: Providing options for ±5%, ±2x2.5%, or ±4x2.5% adaptability.
Frequency Compatibility: Designed for 50Hz or 60Hz operations.
Phases: Configurable as three or single phase to suit various applications.
Connection Symbol: Options include Dyn11, Yyn0, or customized to specification.
Short-Circuit Impedance: Adheres to standard impedance requirements.
Operational Conditions: Altitude should not exceed 1000m, with ambient temperatures capped at 40°C.
For conditions that deviate, we adjust parameters to meet standard compliance and ensure seamless operation.
Our fully sealed oil immersed power transformer by Chaotai Power stands out with its low-loss, noise-reducing, and high-efficiency design, making it an environmental champion that aids in substantial energy conservation and pollution reduction.
In contrast to conventional oil immersed transformers, our fully sealed model eliminates the oil conservator, utilizing an elastic corrugated sheet within the corrugated oil tank to automatically manage oil volume changes. This innovation keeps the transformer air-sealed, preventing oil degradation and insulation aging. It bolsters operational reliability, offering maintenance-free performance under normal operating conditions.
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 electrical integration, proudly classed as a high-tech enterprise. Our dedicated R&D, production, and service teams bring over 15 years of unparalleled industry expertise and passion. We deliver excellence from concept to completion.
Our comprehensive product lineup includes high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, cutting-edge gas-insulated switchgear, and robust substations. These world-class products find their application in a diverse array of sectors such as energy and chemical industries, metal smelting, expansive electric power grids, industrial manufacturing marvels, esteemed universities and research institutions, essential medical and pharmaceutical sectors, bustling municipal commerce, vital water conservancy and hydropower, essential road traffic systems, as well as thriving commercial and residential areas, making our solutions integral to progress.
At Zhejiang Chaotai, we steadfastly embrace the philosophy of 'smart manufacturing' through relentless technological innovation. By attracting top-tier technical talent, we elevate our core competitiveness, delivering unparalleled value and cementing our status as an industry leader. Our journey has been marked by continuous progress, evolving from humble beginnings to industry excellence. Our unwavering commitment to quality, reputation-driven growth, and efficiency through management forms the backbone of our modern business strategy. We are resolute in guiding technology, championing standardized management, and delivering exceptional quality, all while ensuring customer delight. Our mission is to dominate China's power distribution sector with unmatched speed, strength, and ambition. Integrity, quality, and service are our foundational pillars, with customer satisfaction as our ultimate goal. We pursue excellence, foster continuous innovation, and aim to build a brand synonymous with trust. Your support propels us forward, and we extend heartfelt gratitude to our new and loyal customers. Together with Senhang Technology, we aspire to craft 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.