Product Description
Oil Immersed Series Transformer:
Introducing the S11-M series fully sealed oil immersed power transformer from Chaotai Power, epitomizing cutting-edge energy solutions with its exceptional features of low loss, minimal noise, and outstanding efficiency. This transformer excels in delivering substantial energy savings and reducing environmental pollution. Unlike conventional oil immersed transformers, the fully sealed design eliminates the oil conservator, with oil volume fluctuations intelligently adjusted and compensated by the advanced elasticity of the corrugated oil tank sheets. By ensuring isolation from air, it significantly retards oil deterioration and insulation aging, thus enhancing operational reliability and eliminating the need for maintenance during normal operation.
1. Power Capacity: Ranging from 25 to 2500KVA, with operational voltages of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable options to meet specific customer requirements. 2. Voltage Level: Offering flexibility with levels such as 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Available in both off-circuit and on-load configurations to suit diverse operational needs.
4. Tapping Range: With precision tapping options of ±5%, 2x2.5%, and ±4x2.5%, ensuring optimal performance and adaptability.
5. Frequency: Compatible with both 50Hz and 60Hz frequency standards.
6. Phases: Available in both three-phase and single-phase configurations for varied applications.
7. Connection Symbol: Options include Dyn11 and Yyn0, or customized configurations upon request.
8. Short-Circuit Impedance: Engineered to standard impedance specifications, ensuring reliability and efficiency.
9. Altitude and Temperature: Operational at altitudes not exceeding 1000m and ambient temperatures not exceeding 40°C. Should conditions exceed these parameters, adjustments will be made to meet standard requirements.
Adjustments in accordance with standard requirements for unique conditions.
Power Capacity: A versatile range between 25 and 2500KVA to accommodate various power needs.
Operational Voltage Levels: Options include 10KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV, offering vast adaptability.
Voltage Level Options:
Voltage Regulation Type: Configurable for both off-circuit and on-load operations.
Tapping Range: Precision options of ±5%, ±2x2.5%, ±4x2.5% to ensure efficiency.
Frequency Compatibility: Designed to operate seamlessly on 50Hz or 60Hz.
Phase Options: Available in three-phase or single-phase configurations for tailored solutions.
Connection Symbol Options: Dyn11, Yyn0, or custom configurations available.
Short-Circuit Impedance: Built to standard impedance for optimal performance.
Operational Conditions: Suitable for altitudes not exceeding 1000m and temperatures not exceeding 40°C.
Custom Modulations: Parameters will be adjusted in compliance with standards if environmental conditions exceed specifications.
The fully sealed oil immersed power transformer by Chaotai Power offers unparalleled advantages including low loss, reduced noise levels, and extraordinary efficiency, efficiently promoting energy savings and minimizing pollution.
Compared to traditional oil immersed transformers, this advanced fully sealed model eliminates the oil conservator. The innovative design automatically adjusts oil volume changes using the elasticity of the corrugated tank sheets. Isolated from air exposure, it effectively prevents oil degradation and insulation aging, enhancing reliability and eliminating maintenance during standard 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 technological prowess in the realm of electrical integration. As a high-tech enterprise, we boast a skilled and dedicated R&D, production, and service team, each a master of their craft with over 15 years of invaluable industry experience. Our passion for excellence drives us to engineer solutions that meet the needs of a constantly evolving marketplace.
Our distinguished product lineup includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These cutting-edge offerings are trusted and deployed across a wide spectrum of sectors—ranging from the energy and chemical industries to metal smelting, power grids, industrial manufacturing, and more. Our products illuminate universities and research institutions, underpin the medical and pharmaceutical sectors, energize municipal commerce, and support the infrastructure of water conservancy, hydropower, road traffic, and residential areas, seamlessly integrating into the fabric of modern living.
At Zhejiang ChaoTai, we champion technological advancement and 'smart manufacturing' as cornerstones of our strategic vision. By actively nurturing high-level technical talents, we continually bolster our core competitiveness, delivering unparalleled value to our clients. Our company's journey has been one of relentless progress—from humble beginnings to a position of prominence, driven by a commitment to innovation. Our corporate ethos rests on quality for survival, reputation for development, and management for efficiency. We pledge to uphold 'technology as our guide, standardized management, superior quality, and unwavering customer satisfaction' to enhance our market position. Serving the transmission and distribution sectors of China's power and grid industry with unmatched agility and ambition is our mission. Trust, quality, and service are the pillars of our enduring success, with customer satisfaction as our guiding star. We are dedicated to continuous innovation and excellence, building a brand that earns your trust. We express our heartfelt gratitude to our loyal customers for their unwavering support, and we, at Senhang Technology, eagerly anticipate new opportunities to collaborate and create 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.
Audited Supplier 
){kind=link}