Product Description
Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series fully sealed oil-immersed power transformer, a marvel crafted with precision by Zhejiang Chaotai Complete Equipment Co., Ltd. This extraordinary transformer redefines excellence with its remarkably low energy consumption, whisper-quiet functionality, and unparalleled efficiency. It stands as a beacon of eco-friendly technology, dramatically cutting down pollution and significantly reducing environmental impact. Unlike conventional oil-immersed transformers, this avant-garde model does away with the need for an oil conservator. Thanks to the innovative elastic properties of the corrugated oil tank, it autonomously adjusts and balances oil volume changes, ensuring a flawlessly sealed operation that protects the transformer from air exposure. This transformative feature not only averts oil degradation but also greatly extends the lifespan of insulation and enhances operational reliability, all while eliminating the need for routine maintenance under normal conditions.
1. Power Capacity: Offering a robust range from 25-2500KVA, with versatile options for 24KV, 30KV, 33KV, 35KV, and 36KV. Further customization is available to tailor to your specific needs. 2. Voltage Level: Provided in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV configurations. 3. Type of Voltage Regulation: Available with both Off-circuit and On-load regulation options, ensuring flexibility and adaptability.
4. Tapping Range: A selection that includes ±5%, 2x2.5%, and ±4x2.5% for precise adjustments.
5. Frequency: Choose from either 50Hz or 60Hz to suit your system's requirements.
6. Phases: Offered in both Three-phase and single-phase configurations, catering to diverse application needs.
7. Connection Symbol: Configurations include Dyn11, Yyn0, or fully customizable to meet your unique specifications.
8. Short-circuit Impedance: Equipped with Standard Impedance to ensure optimal performance.
9. Operational Conditions: Engineered for altitudes up to 1000m and ambient temperatures not exceeding 40°C. Should actual conditions differ, we will adjust parameters as per established protocols to ensure seamless operation.
All adjustments will rigorously conform to industry standards, guaranteeing safety and reliability.
Power Capacity: A robust range between 25-2500KVA, catering to various power demands.
Voltage Levels: A wide array of choices including 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV to meet diverse requirements.
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit and On-load options, offering flexibility to match your needs.
Tapping Range: Multiple options including ±5%, ±2x2.5%, and ±4x2.5%, enabling fine-tuned performance.
Frequency Options: Select the ideal frequency from 50Hz or 60Hz for your system.
Phases: Designed with versatility in mind, available in both Three-phase and single-phase.
Connection Symbol: Choose from Dyn11, Yyn0, or customize to fit specific requirements.
Short-circuit Impedance: Features Standard Impedance, ensuring consistent and reliable performance.
Operational Conditions: Suitable for installations at altitudes not exceeding 1000m, with ambient temperatures below 40°C.
If operating conditions deviate, we will implement necessary parameter adjustments, strictly adhering to standard guidelines to maintain performance integrity.
The fully sealed oil-immersed power transformer, an extraordinary innovation by Chaotai Power, excels with its exceptionally low energy loss, quiet operation, and superior efficiency. It serves as a pioneering energy-saving solution that significantly minimizes pollution.
Setting itself apart from traditional oil-immersed transformers, this fully sealed design eliminates the need for an oil conservator. It expertly manages oil volume changes through the elastic prowess of the corrugated oil tank sheet, ensuring that the transformer remains thoroughly insulated from air. This vital feature not only prevents oil deterioration and slows the aging of insulation but also greatly enhances reliability, removing the necessity for regular maintenance.
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 technological brilliance in the ever-evolving realm of electrical integration. As a distinguished high-tech enterprise, we boast a remarkable team skilled in R&D, production, and service, fortified by over 15 years of invaluable industry expertise. Our fervent dedication to achieving unparalleled excellence sets us apart as pioneers in groundbreaking innovation, making us an influential force in the industry.
Our expansive product portfolio is a testament to cutting-edge innovation, featuring state-of-the-art solutions such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These extraordinary products are indispensable across a multitude of sectors, including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their utility extends seamlessly into both commercial and residential applications. We take immense pride in our role of empowering the future with trailblazing solutions that shape tomorrow's landscape.
Driven by a philosophy of relentless technological advancement and 'smart manufacturing,' we are devoted to cultivating a culture of excellence through the integration of premier technical talents. This strategic focus enhances our core competencies, ensuring the delivery of unparalleled service value to our esteemed clients. Our incredible journey from inception to becoming industry leaders is a testament to our core values: innovation as our strategy, unwavering commitment to quality as our foundation, market reputation as our development pathway, and management efficiency as our profit engine. We are committed to harnessing 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision aims to elevate our market competitiveness, serving China's electric power and grid transmission and distribution sectors with ever-ascending aspirations. Integrity, superior quality, exceptional service, and customer satisfaction are the essence of our values. We relentlessly pursue excellence, continuously innovating to forge a brand synonymous with trust and reliability. The appreciation of our customers is the driving force behind our ambition. We extend our heartfelt gratitude to our loyal customers, both new and long-standing, and warmly invite you to join us on a shared journey with Senhang Technology towards a radiant 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}