Product Description



Oil-immersed Series Transformer:
The S11-M series fully sealed oil-immersed power transformer, a remarkable innovation by Zhejiang Chaotai Complete Equipment Co., Ltd., boasts an array of superior attributes including low loss, minimal noise, and exceptional efficiency. These features culminate in a highly effective energy-saving solution that significantly mitigates environmental impact. Unlike conventional oil-immersed transformers, our fully sealed variant eliminates the need for an oil conservator. The fluctuating oil volume is adeptly managed through the sophisticated elasticity of the corrugated sheet in the oil tank, ensuring seamless, automated adjustments and compensation. This design effectively isolates the transformer from atmospheric exposure, thereby stalling oil degradation and insulating aging, ultimately reinforcing operational reliability and negating the necessity for routine maintenance under standard operational conditions.
1. Power Capacity: Ranges from 25 to 2500 KVA with options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable specifications as per client needs. 2. Voltage Level: Offers various levels including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Available in either Off-circuit or On-load configurations, catering to diverse operational requirements.
4. Tapping Range: An adaptable range offering ±5%, ±2x2.5%, and ±4x2.5% to suit various technical demands.
5. Frequency: Flexible operation at either 50Hz or 60Hz, accommodating international standards.
6. Phases: Configurable for Three-phase or Single-phase applications, enhancing versatility.
7. Connection Symbol: Options include Dyn11, Yyn0, or custom arrangements as specified, providing tailored connection solutions.
8. Short-circuit Impedance: Adheres to Standard Impedance specifications, ensuring consistent performance.
Operating parameters are modulated to meet conditions should the altitude exceed 1000m or ambient temperature surpass 40°C. 9. Altitude not exceeding 1000m, with ambient temperature constraints.
Modifications align with established standards to accommodate environmental variables.
Power Capacity: Efficiently ranging from 25 to 2500 KVA, catering to diverse power requirements.
Voltage Levels: Comprehensive options including 10KV, 11KY, 13.8KV, 15KY, 17.5KV, 20KY, 22KV, 30KV, 33KV, 35KV, and 36KV, ensuring adaptability across various applications.
Voltage Level:
Type of Voltage Regulation: Choose between Off-circuit or On-load to match specific operational preferences.
Tapping Range: Provides flexibility with ranges of ±5%, ±2x2.5%, ±4x2.5%.
Frequency: Operates effectively at either 50Hz or 60Hz, suitable for global use.
Phases: Available in Three or Single phase configurations to meet diverse technical needs.
Connection Symbol: Customize with Dyn11, Yyn0, or other preferred specifications.
Short-circuit Impedance: Conforms to Standard Impedance norms, ensuring reliable performance.
Altitude and Temperature: Designed to function optimally at altitudes not exceeding 1000m and ambient temperatures up to 40°C. Adjustments made as necessary to meet these conditions.
If deviations from standard conditions occur, parameters will be precisely modulated to ensure compliance with industry standards.
Our meticulously engineered fully sealed oil-immersed power transformer from Chaotai Power offers an exceptional blend of low loss, reduced noise, and heightened efficiency, achieving remarkable energy conservation and reduced pollution levels.
This advanced transformer design eliminates the traditional oil conservator, with its oil volume effortlessly regulated by the corrugated oil tank's elasticity. This isolates the system from air exposure, slowing oil and insulation deterioration, enhancing reliability, and negating the need for regular maintenance under standard 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. is a pioneering high-tech enterprise dedicated to revolutionizing the field of electrical integration. Boasting a stellar team of professionals in R&D, production, and service, we proudly hold over 15 years of rich industry expertise. Our seasoned team is committed to delivering cutting-edge solutions tailored to today's dynamic electrical needs.
Our product suite is diverse and robust, featuring high-voltage solid-state soft starters, capacitor cabinets, an array of high and low voltage switchgear, advanced gas-insulated switchgear, and state-of-the-art substations. These exceptional products are making a significant impact across numerous sectors, including the energy and chemical industries, metal smelting, electric power grids, and industrial manufacturing. Furthermore, our innovations extend their reach to academic institutions, the medical and pharmaceutical domains, municipal commerce, water conservation and hydropower projects, road traffic systems, and both commercial and residential developments, offering groundbreaking solutions that drive progress.
Innovation is at the heart of Zhejiang ChaoTai's philosophy. We passionately embrace technological advancements under the aegis of 'smart manufacturing,' welcoming elite technical talents to bolster our core competitiveness. Our mission is to deliver unmatched services and establish the finest brand in the electrical industry. Since our inception, we've evolved from modest beginnings to a beacon of excellence, guided by our commitment to innovation and a modern business strategy emphasizing quality, market orientation, reputation, and efficiency. Our guiding principles are rooted in technology, standardized management, superior quality, and customer satisfaction, enhancing our market stance and serving China's power transmission and distribution sectors with vigor. Integrity and quality form our foundation, while service excellence and customer satisfaction remain our perpetual goals. We steadfastly pursue excellence and innovation, striving to build a brand you can trust. Your support is our inspiration. We extend heartfelt gratitude to our cherished customers, both new and longstanding, and eagerly anticipate collaborating to forge a brighter future with Senhang Technology.
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.