Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series fully sealed oil immersed power transformer, a cutting-edge innovation by Chaotai Power. Designed with excellence, it boasts remarkable attributes such as low loss, minimal noise, and outstanding efficiency, ensuring superior energy-saving capabilities while significantly reducing environmental impact. Unlike traditional oil immersed transformers, this state-of-the-art model features the complete elimination of the oil conservator. The transformer expertly manages oil volume fluctuations through the sophisticated elasticity of the corrugated sheet within the corrugated oil tank. This ingenious design isolates the transformer from the air, effectively preventing oil deterioration and insulation aging, thereby enhancing operational reliability and minimizing maintenance needs during regular use.
1. Power Capacity: 25-2500KVA, available in 24KV, 30KV, 33KV, 35KV, 36KV, and customizable options to meet customer requirements. 2. Voltage Level: Ranges from 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, to 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation for optimal performance.
4. Tapping Range: Options include ±5% and 2x2.5%, as well as ±4x2.5% adjustments for precise control.
5. Frequency: Available in both 50Hz or 60Hz, catering to diverse electrical standards.
6. Phases: Versatility in design allows for both three-phase and single-phase configurations.
7. Connection Symbol: Configurable with Dyn11, Yyn0, or tailored to specific customer requests.
8. Short-Circuit Impedance: Engineered with standard impedance parameters for secure operations.
9. Altitude and Temperature: Designed for altitudes not exceeding 1000m with ambient temperatures under 40°C. Should conditions exceed these parameters, adjustments will be made in accordance with industry standards.
This ensures adherence to established guidelines for unparalleled performance.
Power Capacity: From a robust 25KVA to an impressive 2500KVA.
Voltage Specifications: Spanning a wide array from 10KV to 36KV, including intermediate values for tailored solutions.
Voltage Level:
Type of Voltage Regulation: Options include Off-circuit or On-load adjustments.
Tapping Range: Offers ±5%, ±2x2.5%, and ±4x2.5% for fine-tuned voltage management.
Frequency: Adaptable to either 50Hz or 60Hz systems.
Phases: Configurations are available in both three-phase and single-phase.
Connection Symbol: Customizable with Dyn11, Yyn0, or as needed by the client.
Short-Circuit Impedance: Built with standard impedance specifications.
Environmental Adaptability: Suitable for altitudes up to 1000m and temperatures below 40°C.
If environmental conditions exceed these specifications, adjustments will be made to maintain compliance and performance standards.
The fully sealed oil immersed power transformer by Chaotai Power sets a new standard with its reduced loss and noise, combined with high efficiency. It delivers exceptional energy-saving results and minimizes environmental pollution.
This innovative transformer, in contrast to traditional models, eliminates the need for an oil conservator. The elastic corrugated sheet of the corrugated oil tank smartly adjusts to oil volume changes. Isolated from air exposure, it effectively curtails oil deterioration and insulation aging, thereby boosting operational reliability and requiring virtually no maintenance during normal 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 at the forefront of the electrical integration industry, proudly standing as a high-tech enterprise. With a seasoned team of R&D, production, and service experts, we bring over 15 years of profound industry experience to the table, dedicated to delivering cutting-edge solutions.
Our exceptional product lineup encompasses high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and innovative substations. These robust products are integral in diverse sectors, including the versatile energy and chemical industries, metal smelting, expansive electric power grids, and comprehensive industrial manufacturing. Prestigious universities and research laboratories benefit from our technology, as do the thriving medical and pharmaceutical sectors. Our reach extends to municipal commerce, water conservancy and hydropower projects, road traffic infrastructure, and vibrant commercial and residential developments, ensuring we cater to a multitude of needs with precision and reliability.
Guided by the tenets of technological innovation and championing the philosophy of 'smart manufacturing,' we actively recruit top-tier technical talent to bolster our company's core strengths, offering unparalleled value to our clientele. Our ambition is to establish the leading brand within our industry. Since our inception, we have journeyed from inception to excellence, embracing innovation and a modern business strategy driven by quality assurance, market responsiveness, reputation development, and operational efficiency. We are steadfast in our commitment to 'technology as our compass, standardized management, superior quality, and customer satisfaction.' These principles enhance our competitive positioning in the market, empowering us to ambitiously serve China's electric power and grid sectors with elevated aspirations. Our foundational values are built on integrity, prioritizing quality, delivering exceptional service, and upholding customer satisfaction as our guiding principle. We are relentless in our pursuit of excellence and innovation, dedicated to building a brand synonymous with trustworthiness and reliability. Your support fuels our progress. We extend our heartfelt gratitude to all our loyal customers for their unwavering support. Senhang Technology eagerly anticipates collaborating with you to forge a brighter future together.
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.