Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series of fully sealed oil-immersed power transformers, a masterwork by Zhejiang Chaotai Complete Equipment Co., Ltd. This distinguished transformer is recognized for its outstanding features: low energy consumption, whisper-quiet operation, and impressive efficiency. It serves as an exemplary energy-saving solution by dramatically reducing environmental pollution and its ecological footprint. Unlike conventional models, this state-of-the-art transformer eliminates the necessity for an oil conservator. Its smart design autonomously adjusts for oil volume changes using the flexibility of the corrugated oil tank, thus sealing the transformer from air exposure. This innovative mechanism prevents oil degradation, slows down the aging of insulation, and significantly elevates operational reliability. Additionally, it ensures maintenance-free operations under normal conditions.
1. Power Capacity: Offering a versatile range from 25KVA to 2500KVA, with voltage options including 24KV, 30KV, 33KV, 35KV, and 36KV. Customizations are available to meet client specifications. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV to suit various applications. 3. Type of Voltage Regulation: Options for Off-circuit or On-load, tailored to your operational needs.
4. Tapping Range: Innovative flexibility with options at ±5%, 2x2.5%, and ±4x2.5%
5. Frequency: Choose between 50Hz or 60Hz to match your region's standards.
6. Phases: Available in three-phase or single-phase configurations, providing versatility to suit different requirements.
7. Connection Symbol: Configurations like Dyn11 and Yyn0 are available, with custom configurations on request.
8. Short-circuit Impedance: Conforms to standard impedance requirements, ensuring optimal performance.
9. Operational Conditions: Designed to operate efficiently at altitudes not exceeding 1000m and with ambient temperatures below 40°C. Adjustments will be made according to standard protocols if these conditions are not met.
All adjustments will adhere to the highest industry standards, ensuring reliability and safety.
Power Capacity: Ranging from 25KVA to 2500KVA, tailored to meet diverse power needs.
Voltage Levels: A wide selection ranging from 10KV to 36KV, offering flexibility for multiple applications.
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit or On-load options, customizable based on operational demands.
Tapping Range: Comprehensive options including ±5%, ±2x2.5%, and ±4x2.5% for precise adjustments.
Frequency Options: Versatile with both 50Hz and 60Hz options to suit international standards.
Phases: Configurable in three-phase or single-phase to meet specific requirements.
Connection Symbol: Standard options like Dyn11 and Yyn0, with customization available to meet unique needs.
Short-circuit Impedance: Engineered to meet standard impedance for reliable performance.
Operational Conditions: Optimal performance at altitudes up to 1000m and temperatures up to 40°C, with adjustments made as necessary per guidelines.
Should conditions differ from standard parameters, we will adjust accordingly, ensuring compliance with industry guidelines.
The fully sealed oil-immersed power transformer from Chaotai Power is a beacon of modern innovation, offering minimal energy loss, quiet operation, and exceptional efficiency. This transformer is an outstanding energy-saving solution, greatly reducing environmental pollution.
Differentiating itself from traditional oil-immersed transformers, this cutting-edge design removes the need for an oil conservator. It utilizes the elasticity of the corrugated oil tank sheet to automatically regulate oil volume, maintaining an air-isolated environment. This crucial feature not only prevents oil degradation and slows down insulation aging but also enhances reliability and eliminates the need for routine 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 prowess in the realm of electrical integration. As a distinguished high-tech enterprise, we boast a dedicated R&D, production, and service team, fortified by over 15 years of invaluable industry experience. Our relentless pursuit of excellence marks us as a leader in innovation.
Our diverse product portfolio features cutting-edge offerings such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These products have found their indispensable place 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, extending to both commercial and residential applications. We are proud to power the future with our transformative solutions.
Grounded in a philosophy of relentless technological innovation and 'smart manufacturing,' we are committed to fostering a culture of excellence by integrating high-caliber technical talents. This strategic focus serves to augment our core competencies, ensuring that we deliver unparalleled service value to our clients. Our journey of growth is a testament to our ethos: evolving from inception to industry leadership through unwavering dedication. Our business strategy remains anchored in innovation, with a steadfast commitment to quality as the cornerstone of survival, market reputation as the path to development, and management efficiency as the key to profitability. We pledge to harness 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision is to amplify our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that are faster, stronger, and higher. Integrity, unparalleled quality, exceptional service, and customer satisfaction comprise our core values. We are relentless in our pursuit of excellence, perpetually innovating to establish a brand synonymous with trust. The acknowledgment of our customers fuels our ambition. We extend heartfelt gratitude to our loyal customers, both new and longstanding, and warmly invite you to join Senhang Technology on a shared journey towards a brighter tomorrow.
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.