Product Description



Oil Immersed Series Transformer:
Introducing the distinguished S11-M series fully sealed oil-immersed power transformer, masterfully engineered and produced by Zhejiang Chaotai Complete Equipment Co., Ltd. This extraordinary transformer captivates with its superb qualities of low energy dissipation, whisper-quiet operation, and unmatched efficiency. It stands as a paragon of energy conservation, dramatically diminishing pollution and minimizing environmental footprint. Unlike conventional oil-immersed transformers, this cutting-edge model dispenses with the traditional oil conservator. Its intelligent design self-adjusts and compensates for oil volume variations through the elasticity of the corrugated oil tank, ensuring the transformer remains impeccably sealed from air exposure. This pioneering feature safeguards against oil degradation, decelerates insulation aging, and significantly amplifies operational reliability, all while eradicating the necessity for maintenance during regular operations.
1. Power Capacity: An impressive range of 25-2500KVA, capable of handling voltage tiers of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to meet specific customer specifications 2. Voltage Level: Flexible options available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation to suit your needs.
4. Tapping Range: Achievable options include ±5%, 2x2.5%, ±4x2.5% to ensure precise control.
5. Frequency: Configurable to operate at either 50Hz or 60Hz, accommodating various requirements.
6. Phases: Available in versatile configurations of three-phase or single-phase to match diverse applications.
7. Connection Symbol: Dyn11, Yyn0 with the possibility of customization to align with specific needs.
8. Short-circuit Impedance: Complies with Standard Impedance, ensuring optimal performance under stress.
9. Operational Conditions: Designed for altitudes not exceeding 1000m, with an ambient temperature ceiling of 40°C. Should conditions deviate, adjustments will be performed following standard protocols.
All adjustments will be meticulously executed in accordance with industry standards.
Power Capacity: A versatile range of 25-2500KVA to meet diverse energy demands.
Voltage Levels: A comprehensive selection including 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV.
Voltage Level Overview:
Type of Voltage Regulation: Options include Off-circuit or On-load for precise control.
Tapping Range: Offering flexibility with ±5%, ±2x2.5%, ±4x2.5% for nuanced adjustments.
Frequency Options: Available in both 50Hz and 60Hz for diverse application needs.
Phases: Available configurations include three-phase or single-phase to fit various operational requirements.
Connection Symbol: Configurable as Dyn11, Yyn0 with customization options available.
Short-circuit Impedance: Maintains Standard Impedance for robust performance.
Operational Conditions: Engineered for altitudes not exceeding 1000m and ambient temperatures up to 40°C.
If operational conditions differ, we ensure all necessary parameter adjustments are made in compliance with standard guidelines.
This fully sealed oil-immersed power transformer, a hallmark of innovation by Chaotai Power, offers exceptional low energy loss, serene operation, and high efficiency. It is an exemplary energy-saving solution, drastically reducing pollution.
Unlike traditional oil-immersed transformers, this fully sealed design forgoes the oil conservator. It autonomously regulates oil volume changes using the corrugated oil tank's elasticity, ensuring the transformer is air-isolated. This critical feature prevents oil degradation and insulation aging, enhances reliability, and eliminates the need 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. is a shining example of technological brilliance in the field of electrical integration. As a renowned high-tech enterprise, we are proud to have a dedicated team for R&D, production, and service, strengthened by over 15 years of invaluable industry expertise. Our unwavering commitment to excellence distinguishes us as a pioneer in innovation.
Our extensive product line is filled with state-of-the-art solutions including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These essential products have become integral across a wide array of industries like energy, chemical sectors, metal smelting, power grids, industrial manufacturing, education, healthcare, municipal commerce, water management, hydropower, and road traffic, reaching both commercial and residential areas. We take pride in leading the way to a future empowered by our transformative offerings.
Rooted in a philosophy of unyielding technological advancement and 'smart manufacturing,' we are committed to fostering a culture of excellence by integrating high-caliber technical talents. This strategic emphasis enhances our core strengths, ensuring we deliver unmatched service value to our clients. Our growth journey is a testament to our ethos: growing 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 promise 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 enhance 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 are at the heart of our core values. We tirelessly pursue excellence, constantly innovating to establish a brand synonymous with trust. The acknowledgment of our customers propels our ambition. We express our deepest 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.