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 remarkable transformer boasts significant advantages including exceptionally low loss, minimal noise, and unparalleled efficiency. Its innovative design ensures optimal energy conservation and minimizes environmental pollution. Unlike conventional oil-immersed transformers, this fully sealed model eliminates the need for an oil conservator. The oil volume changes are adeptly managed through the elasticity of the corrugated oil tank's sheets. By isolating the transformer from air exposure, it substantially curtails oil degradation and insulation aging, boosting operational reliability and requiring no maintenance during standard operations.
1. Power Capacity: From a robust 25KVA to an impressive 2500KVA, with available voltage levels of 24KV, 30KV, 33KV, 35KV, 36KV, and customized options to cater to specific customer requirements. 2. Voltage Level: Offering a range of options including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Available in both Off-circuit and On-load types, ensuring flexibility and adaptability to various operational needs.
4. Tapping Range: A versatile range of ±5%, 2x2.5%, and ±4x2.5%, designed to accommodate diverse electrical demands.
5. Frequency Options: Engineered to operate seamlessly on both 50Hz and 60Hz, allowing for broad international compatibility.
6. Phases: Available in both three-phase and single-phase configurations, ensuring suitability for various applications.
7. Connection Symbol: The transformer can be configured with Dyn11 or Yyn0 connection symbols, or customized as per specific requests.
8. Short-circuit Impedance: Designed to adhere to a standard impedance, ensuring stability and reliability.
9. Altitude Adaptability: Effective performance at altitudes not exceeding 1000 meters and ambient temperatures not surpassing 40°C.
In instances where conditions exceed these parameters, we will diligently adjust settings to align with standard specifications.
Power Capacity: Engineered to deliver between 25KVA and 2500KVA.
Voltage Specifications: Comprehensive voltage options include 10KV, 22KV, 30KV, 33KV, 35KV, 36KV, adaptable to a variety of needs.
Voltage Level:
Type of Voltage Regulation: Flexibility to choose between Off-circuit and On-load.
Tapping Range: Offers a dynamic range of ±5%, 2x2.5%, and ±4x2.5%.
Frequency Compatibility: Supports both 50Hz and 60Hz frequencies, making it suitable for global applications.
Phases: Available as three-phase or single-phase units, tailored to specific electrical requirements.
Connection Symbol: Options include Dyn11, Yyn0, with customization available as required.
Short-circuit Impedance: Conforms to standard impedance specifications for enhanced performance.
Altitude and Temperature Limits: Designed for operation below 1000 meters in altitude and temperatures under 40°C.
Adjustments will be made to ensure compliance with standard parameters if environmental conditions deviate.
The fully sealed oil-immersed power transformer crafted by Chaotai Power is a marvel of engineering, combining low loss, low noise, and high efficiency to promote energy savings and reduce pollution.
This cutting-edge fully sealed transformer eliminates the traditional oil conservator. Instead, it uses the elasticity of the corrugated oil tank's sheets to automatically manage oil volume changes. With its design isolated from air exposure, this transformer significantly delays oil degradation and insulation aging, enhancing reliability and negating the need for regular maintenance during typical 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. is a cutting-edge high-tech enterprise dedicated to the dynamic field of electrical integration. With an outstanding team specializing in R&D, production, and service, we boast over 15 years of rich industry experience, positioning us as a leader in innovation and quality.
Our distinguished product lineup encompasses high-voltage solid-state soft starters, sophisticated capacitor cabinets, versatile high and low voltage switchgear, state-of-the-art gas-insulated switchgear, and fully integrated substations. These products have found their niche across diverse sectors, including the energy and chemical industries, metal smelting operations, expansive electric power grids, cutting-edge industrial manufacturing, esteemed universities and research institutions, advanced medical and pharmaceutical sectors, bustling municipal commerce, strategic water conservancy and hydropower projects, efficient road traffic systems, as well as thriving commercial and residential developments.
We are unwavering in our commitment to technological innovation and the pioneering 'smart manufacturing' development philosophy. By continuously attracting top-tier technical talent, we elevate our core competitiveness, offering unparalleled value and exceptional services to our esteemed clientele. Our mission is to craft the industry's premier brand. Since our inception, we have consistently evolved, advancing from pioneering starts to reaching peaks of excellence. Driven by innovation, we adhere to a modern business ethos, where quality ensures survival, market dynamics guide us, reputation underpins our growth, and proficient management drives efficiency. We fervently commit to 'technology as the beacon, standardized management, unwavering quality, and customer satisfaction' in our pursuit of excellence in quality and talent management. This enhances our market position, empowering us to serve China's electric power and grid transmission and distribution fields with greater speed, strength, and ambition. We hold integrity as our foundation, quality as our priority, and service as our pinnacle, with customer satisfaction as our everlasting principle. Relentlessly pursuing excellence, fostering continuous innovation, and building a brand synonymous with trust are our steadfast development objectives. Your recognition fuels our journey. We extend our heartfelt gratitude to all our new and loyal customers for their unwavering support and affection. At Senhang Technology, we eagerly anticipate forging paths together, towards a future radiant with promise.
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.