Product Description



Oil Immersed Series Transformer: A pinnacle of engineering brilliance, redefining power management excellence.
Introducing the extraordinary S11-M series by Zhejiang Chaotai Complete Equipment Co., Ltd., a masterpiece in transformer innovation. This fully sealed oil-immersed power transformer is a testament to meticulous engineering, boasting minimal energy consumption, whisper-quiet operation, and superior efficiency. As an exemplary energy solution, it significantly reduces environmental pollution. Unlike traditional counterparts, this advanced model eliminates the need for an oil conservator. Its ingenious design automatically adjusts to oil volume changes via the flexible corrugated oil tank, ensuring the transformer is sealed from air exposure. This state-of-the-art feature prevents oil degradation, slows insulation aging, and greatly enhances operational reliability, all while removing the need for maintenance in routine operations.
1. Power Capacity: Engineered to offer a range from 25-2500KVA, with voltage options including 24KV, 30KV, 33KV, 35KV, 36KV, and customizable options tailored to customer specifications. 2. Voltage Level: Available in an array of levels including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV to suit diverse needs. 3. Type of Voltage Regulation: Offered in Off-circuit or On-load variations to meet varied operational demands.
4. Tapping Range: Flexibly adjustable at ±5%, 2x2.5%, or ±4x2.5% for precise voltage control.
5. Frequency: Adaptable to either 50Hz or 60Hz to align with global standards.
6. Phases: Available in versatile Three-phase or single-phase configurations, catering to specific requirements.
7. Connection Symbol: Offered as Dyn11, Yyn0, with bespoke customization options to fit unique specifications.
8. Short-circuit Impedance: Designed with Standard Impedance for consistent performance.
9. Operational Conditions: Optimized for altitudes up to 1000m and ambient temperatures below 40°C. If these parameters are exceeded, we adjust according to industry-standard protocols.
All necessary adjustments will be in strict compliance with industry standards, ensuring unparalleled performance.
Power Capacity: Spanning options from 25-2500KVA to meet every power need.
Voltage Levels: A comprehensive range spanning 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, accommodating diverse applications.
Voltage Level Overview: A wide selection to address all voltage level requirements with precision.
Type of Voltage Regulation: Available in both Off-circuit or On-load options for tailored functionality.
Tapping Range: Offered at ±5%, ±2x2.5%, ±4x2.5% to deliver customizable voltage adjustments.
Frequency Options: Available in adaptable 50Hz or 60Hz modes, ensuring compatibility with various systems.
Phases: Available options include Three-phase or single-phase to cater to diverse operational needs.
Connection Symbol: Configurable as Dyn11, Yyn0, with tailored customization options available upon request for precise application.
Short-circuit Impedance: Expertly engineered with Standard Impedance for reliable functionality.
Operational Conditions: Carefully designed for altitudes not exceeding 1000m, with ambient temperatures not exceeding 40°C.
In situations where conditions differ, we will perform necessary parameter adjustments in strict adherence to standard guidelines, ensuring optimal performance.
This fully sealed oil-immersed power transformer from Chaotai Power represents a marvel of innovation, designed for low energy loss, whisper-quiet operation, and exceptional efficiency. It stands as a premier energy-saving solution, dramatically reducing pollution.
Unlike conventional oil-immersed transformers, this innovative fully sealed design omits the oil conservator. It expertly manages oil volume variations with the elasticity of the corrugated oil tank sheet, ensuring the transformer remains isolated from air. This vital feature not only prevents oil degradation and insulation aging but also enhances reliability and eradicates 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. is a shining beacon of cutting-edge innovation in the electrical integration arena. As a prestigious high-tech enterprise, our company distinguishes itself with dedicated R&D, production, and service teams, supported by an impressive legacy of over 15 years of invaluable industry expertise. Our unwavering commitment to excellence emphasizes our leadership in innovation, consistently setting industry benchmarks.
Our diverse and advanced product portfolio showcases pioneering solutions, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These essential products play a crucial role across diverse industries, ranging from energy and chemical sectors to metal smelting, electric power grids, and industrial manufacturing. Moreover, our influence extends to academia, healthcare, municipal commerce, water management, hydropower, and road traffic, impacting both commercial and residential applications. We proudly empower the future with transformative solutions, making a substantial impact across these vital sectors.
Rooted in a philosophy of relentless technological advancement and 'smart manufacturing,' we cultivate a culture of excellence by integrating top-tier technical talents and innovative strategies. This strategic commitment bolsters our core competencies, ensuring unparalleled service value for our clients. Our growth testament embodies our core values: evolving from humble beginnings to industry leadership through dedication and innovation. Our business strategy focuses fiercely on quality as the cornerstone of survival, market reputation as the development avenue, and management efficiency as the profitability key. 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 seeks to heighten market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations aiming higher, reaching further, and achieving more. Integrity, unmatched quality, exceptional service, and customer satisfaction remain at the heart of our values. Our relentless pursuit of excellence propels perpetual innovation, establishing our brand as synonymous with trust. The acknowledgment of our valued customers fuels our ambition. We extend heartfelt gratitude to our loyal customers, both new and longstanding, warmly inviting you to join Zhejiang Chaotai 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.