Product Description



Oil Immersed Series Transformer:
Introducing the remarkable S11-M series, a fully sealed oil-immersed power transformer thoughtfully crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer is a paragon of energy efficiency, characterized by its minimal energy usage, whisper-quiet operation, and unparalleled efficiency. As a leading-edge energy solution, it significantly diminishes environmental pollution. Distinct from ordinary oil-immersed models, this advanced transformer discards the need for an oil conservator. With its innovative design, it effortlessly adjusts to oil volume variations thanks to the flexibility of the corrugated oil tank, effectively sealing the transformer from air exposure. This cutting-edge feature prevents oil degradation, slows down insulation aging, and vastly improves operational reliability, all while removing the need for maintenance during routine operations.
1. Power Capacity: Spanning from 25-2500KVA, with adaptability for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable to fit specific customer requirements 2. Voltage Level: Available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Offered in both Off-circuit or On-load variations for tailored performance
4. Tapping Range: Configurable options at ±5%, 2x2.5%, or ±4x2.5% to suit diverse operational needs
5. Frequency: Customizable options for either 50Hz or 60Hz to match global standards
6. Phases: Versatile availability in Three-phase or single-phase configurations for comprehensive applications
7. Connection Symbol: Offered as Dyn11, Yyn0, with bespoke customization options available as required for specialized setups
8. Short-circuit Impedance: Meticulously designed with Standard Impedance for optimal performance and reliability
9. Operational Conditions: Optimized for altitudes up to 1000m and ambient temperatures below 40°C. Deviations from these conditions will prompt adjustments following standard industry protocols.
All necessary adjustments will adhere to rigorous industry standards, ensuring reliable and consistent performance.
Power Capacity: Ranging from an adaptable 25-2500KVA, ensuring a broad spectrum of energy requirements is met with precision.
Voltage Levels: Comprehensive range including 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV to cater to diverse applications.
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit or On-load options, ensuring flexibility for varied operational needs.
Tapping Range: Offered at versatile settings of ±5%, ±2x2.5%, ±4x2.5% to accommodate precise voltage requirements.
Frequency Options: Tailored availability in 50Hz or 60Hz modes, aligning with international standards.
Phases: Options include adaptable Three-phase or single-phase, ensuring suitability for diverse applications.
Connection Symbol: Configurable as Dyn11, Yyn0, with bespoke customization options available upon request for tailored solutions.
Short-circuit Impedance: Engineered with precision using Standard Impedance, ensuring consistent and dependable performance.
Operational Conditions: Designed for optimal performance at altitudes not exceeding 1000m, under ambient temperatures not exceeding 40°C.
In scenarios where conditions differ, we will perform necessary parameter adjustments, adhering strictly to standard guidelines for consistent performance.
This fully sealed oil-immersed power transformer, a marvel of innovation from Chaotai Power, is designed for low energy consumption, whisper-quiet operation, and exceptional efficiency, standing as a premiere energy-saving solution that significantly minimizes pollution.
Unlike traditional oil-immersed transformers, this fully sealed design forgoes the oil conservator, adeptly managing oil volume variations through 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 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 innovation and technological brilliance in the sphere of electrical integration. Our esteemed high-tech enterprise is marked by a dedicated R&D, production, and service team, all of whom are backed by a remarkable legacy of over 15 years of invaluable industry expertise. Our unyielding commitment to excellence solidifies our esteemed position as a leader in innovation, consistently setting benchmarks across the industry.
Our expansive and sophisticated product portfolio encompasses pioneering solutions such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These indispensable products are vital across a wide spectrum of industries, from energy and chemical sectors to metal smelting, electric power grids, and industrial manufacturing. Furthermore, we extend our transformative influence to academia, healthcare, municipal commerce, water management, hydropower, and road traffic, impacting both commercial and residential applications. With pride, we empower the future through our innovative solutions, making a significant imprint across these crucial sectors.
Anchored in a philosophy of relentless technological advancement and 'smart manufacturing,' we are fervently committed to fostering a culture of excellence by integrating top-tier technical talents and inventive strategies. This strategic dedication enhances our core competencies, ensuring we deliver unmatched service value to our clients. Our growth narrative is a testament to our core values: evolving from modest beginnings to industry leadership through unyielding dedication and innovation. Our business strategy steadfastly emphasizes quality as the cornerstone of survival, market reputation as the path to development, and management efficiency as the gateway to profitability. Our pledge is to leverage '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 strive higher, extend further, and achieve more. Integrity, unparalleled quality, exceptional service, and customer satisfaction lie at the heart of our values. Our relentless pursuit of excellence propels us to perpetually innovate, establishing our brand as synonymous with trust. The recognition of our valued customers fuels our ambition. We extend heartfelt gratitude to our loyal customers, both new and longstanding, and warmly invite 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.