Product Description
Oil Immersed Series Transformer:
Introducing the S11-M series, a marvel of engineering by Chaotai Power: a fully sealed oil-immersed power transformer that promises unparalleled performance. Revel in its low loss, quiet operation, and high efficiency—hallmarks of a product designed to save energy and curtail pollution. Unlike its ordinary counterparts, this transformer eliminates the need for an oil conservator, as the innovative design allows automatic adjustment of oil volume via the corrugated oil tank's sheet elasticity. This design keeps the transformer isolated from air, reducing oil deterioration and insulation aging, bolstering operational reliability, and ensuring maintenance-free performance.
1. Power Capacity: Offering a versatile range from 25 to 2500KVA, with voltage options of 24KV, 30KV, 33KV, 35KV, 36KV, and customized solutions to meet specific customer needs. 2. Voltage Level: Choose from 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV for optimal performance. 3. Type of Voltage Regulation: Available in off-circuit or on-load variations to suit diverse application requirements.
4. Tapping Range: Flexible options include ±5%, 2x2.5%, and ±4x2.5% to accommodate varying conditions.
5. Frequency: Engineered for compatibility with both 50Hz and 60Hz systems.
6. Phases: Configurable as either three-phase or single-phase, according to your specific needs.
7. Connection Symbol: Offered in Dyn11, Yyn0 configurations, with options for customization as requested.
8. Short-Circuit Impedance: Designed to adhere to standard impedance regulations for enhanced safety and performance.
Altitude is not exceeding 1000m, ambient temperature not exceeding 40°C. Should these conditions not be met, we will adjust parameters accordingly.
Adherence to standards ensures all parameters are modulated appropriately.
Power Capacity: Capable of delivering consistent power from 25KVA to 2500KVA.
Voltage Levels: Ranging from 10KV to 36KV, including 10KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV, our transformers cater to various requirements.
Voltage Level:
Type of Voltage Regulation: Choose between off-circuit and on-load to match your operational needs.
Tapping Range: Adaptable tapping options at ±5%, ±2x2.5%, and ±4x2.5%.
Frequency: Suitable for both 50Hz and 60Hz applications.
Phases: Available in three-phase or single-phase options.
Connection Symbol: Configurations available in Dyn11, Yyn0, or customized as per your request.
Short-Circuit Impedance: Built to comply with standard impedance specifications.
Altitude is not exceeding 1000m, ambient temperature not exceeding 40°C.
Should environmental conditions fall outside these parameters, rest assured that our standards allow for parameter modulation to maintain optimal performance.
The fully sealed oil-immersed power transformer by Chaotai Power offers unmatched advantages: low loss, minimal noise, and remarkable efficiency, leading to significant energy savings and reduced environmental impact.
In comparison to conventional oil-immersed transformers, our fully sealed design omits the oil conservator, relying on the elasticity of the corrugated oil tank to adjust oil volume. This isolation from air prevents rapid deterioration of oil and insulation, enhancing reliability and ensuring maintenance-free operation under normal 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
Introducing Zhejiang ChaoTai Complete Equipment Co., Ltd., a beacon of innovation in the realm of electrical integration. We are a pioneering high-tech enterprise, boasting a professional team dedicated to research & development, production, and service, all underpinned by over 15 years of rich industry experience.
Our esteemed product line features high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, cutting-edge gas-insulated switchgear, and comprehensive substations. These exceptional products are trusted across diverse sectors, including energy and chemicals, metal smelting, electric power, industrial manufacturing, tertiary education and research, healthcare and pharmaceuticals, municipal commerce, water conservancy and hydropower, road traffic infrastructure, as well as commercial and residential projects.
Guided by our commitment to technological innovation and the philosophy of 'smart manufacturing,' we actively attract top-tier technical talent to elevate our core competitiveness. Our mission is to deliver unparalleled value to our clients and shape the most esteemed brand in our industry. Since inception, we have forged a path of relentless progress, transforming from conception to excellence. Our strategy is rooted in survival through quality, driven by market orientation, and fueled by reputation and management efficiency. Our devotion to 'technology as our compass, standardized processes, superior quality, and utter customer satisfaction’ enriches our quality and talent management, sharpening our competitive edge in the market. We pledge to serve China’s power transmission and distribution sectors with heightened speed, strength, and ambition. With integrity as our cornerstone, quality as our hallmark, exceptional service as our promise, and customer satisfaction as our ultimate goal, we relentlessly pursue excellence, continuous innovation, and the cultivation of a reliable brand. Your trust inspires us. We extend heartfelt gratitude to all our loyal customers for their enduring support. Senhang Technology eagerly anticipates our collaborative journey towards an even 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}