Product Description



Oil Immersed Series Transformer:
Introducing the extraordinary S11-M series, meticulously crafted by Zhejiang Chaotai Complete Equipment Co., Ltd., this fully sealed oil-immersed power transformer sets a new benchmark. It boasts outstanding characteristics like minimal energy consumption, low operational noise, and remarkable efficiency. As a paragon of energy solutions, it significantly reduces environmental pollution. This advanced model surpasses conventional oil-immersed transformers by eliminating the need for an oil conservator. Its ingenious design adjusts to oil volume changes using the corrugated oil tank's flexibility, safeguarding the transformer from air exposure. This cutting-edge feature not only prevents oil degradation and insulation aging but also greatly enhances operational reliability, all while eliminating the requirement for maintenance during routine operations.
1. Power Capacity: Spanning from 25-2500KVA, with versatile options for 24KV, 30KV, 33KV, 35KV, 36KV, and can be tailored to meet specific customer requirements 2. Voltage Level: Available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Provided in both Off-circuit or On-load versions
4. Tapping Range: Configurable at ±5%, 2x2.5%, or ±4x2.5%
5. Frequency: Adaptable options for either 50Hz or 60Hz
6. Phases: Offered in Three-phase or single-phase setups
7. Connection Symbol: Available as Dyn11, Yyn0, with customizable options as per requirements
8. Short-circuit Impedance: Designed with Standard Impedance
9. Operational Conditions: Optimized for altitudes not exceeding 1000m and ambient temperatures below 40°C. Should these parameters vary, adjustments will adhere to standard industry protocols.
All necessary modifications will strictly comply with industry standards.
Power Capacity: Offering a range between 25-2500KVA
Voltage Levels: Encompassing 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit or On-load options
Tapping Range: Offered at ±5%, ±2x2.5%, ±4x2.5%
Frequency Options: Available in 50Hz or 60Hz modes
Phases: Options include Three-phase or single-phase
Connection Symbol: Customizable as Dyn11, Yyn0, with options available upon request
Short-circuit Impedance: Engineered with Standard Impedance
Operational Conditions: Built for altitudes not exceeding 1000m, with ambient temperatures staying below 40°C
In scenarios where conditions differ, we will perform necessary parameter adjustments following standard guidelines.
This fully sealed oil-immersed power transformer, a marvel of innovation from Chaotai Power, combines low energy loss, whisper-quiet operation, and exceptional efficiency. It stands as a premier energy-saving solution, significantly mitigating pollution.
Unlike conventional oil-immersed transformers, this fully sealed design dispenses with the oil conservator. It skillfully manages oil volume variations using the elasticity of the corrugated oil tank sheet, ensuring the transformer remains air-isolated. This crucial feature prevents oil degradation, retards insulation aging, and enhances reliability, eliminating 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 luminous symbol of state-of-the-art innovation in the domain of electrical integration. Celebrated as a high-tech powerhouse, our firm excels with a devoted R&D, production, and service team, fueled by a rich heritage of over 15 years of industry acumen. Our steadfast pursuit of superiority solidifies our role as trailblazers, consistently setting the gold standard across the sector.
Our extensive and sophisticated array of products features groundbreaking innovations like high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These indispensable solutions are pivotal across a multitude of fields, spanning energy, chemical industries, metal smelting, electric power grids, and industrial manufacturing. We further extend our impact to education, healthcare, municipal commerce, water management, hydropower, and road traffic, serving both commercial and residential spheres. Proudly, we drive the future with our transformative solutions, leaving an indelible mark on these essential sectors.
Driven by a philosophy of continuous technological progress and 'smart manufacturing,' we are devoted to fostering a culture of excellence by merging premier technical expertise and visionary strategies. This pursuit enhances our foundational strengths, guaranteeing exceptional service value for our clients. Our evolution from modest beginnings to industry leadership is a testament to our core principles: unwavering commitment and groundbreaking innovation. Our business strategy resolutely emphasizes quality as the bedrock of survival, market reputation as the path to growth, and management efficiency as the catalyst for profitability. We pledge to embrace 'technology as the guide, standardized management, exceptional quality, and customer satisfaction' as the cornerstones of our quality and talent management endeavors. Our ambitious vision seeks to elevate market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that soar higher, stretch further, and accomplish more. Integrity, peerless quality, excellent service, and customer satisfaction form the essence of our values. Our relentless quest for excellence propels us to ceaselessly innovate, making our brand synonymous with trust. The recognition of our esteemed customers drives our ambition. We extend heartfelt thanks to our cherished customers, both new and longstanding, and warmly invite you to join Zhejiang Chaotai in a shared journey 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.