Product Description



Oil Immersed Series Transformer:
Introducing the extraordinary S11-M series: a groundbreaking, fully sealed oil-immersed power transformer meticulously crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer epitomizes superior energy solutions, boasting unrivaled traits such as minimal energy consumption, low operational noise, and outstanding efficiency. Its cutting-edge design significantly reduces environmental pollution and sets it apart from traditional oil-immersed options by eliminating the need for an oil conservator. Ingeniously engineered, this model masterfully adapts to oil volume changes with the flexibility of its corrugated oil tank, sealing the transformer from air exposure. This innovative feature not only prevents oil degradation and retards insulation aging but also greatly enhances operational reliability, negating the necessity for regular maintenance. Experience transformative efficiency and reliability with this state-of-the-art energy solution.
1. Power Capacity: With a versatile range from 25-2500KVA, encompassing options for 24KV, 30KV, 33KV, 35KV, 36KV, and fully customizable to meet each unique customer specification 2. Voltage Level: Available options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Choose from Off-circuit or On-load variations.
4. Tapping Range: Highly configurable at ±5%, 2x2.5%, or ±4x2.5% for tailored performance.
5. Frequency: Offered in adaptable options for either 50Hz or 60Hz to suit varying needs.
6. Phases: Available in robust Three-phase or adaptable single-phase configurations.
7. Connection Symbol: Offered in Dyn11, Yyn0 configurations, with extensive customization options available as required.
8. Short-circuit Impedance: Precision-engineered with Standard Impedance for reliable performance.
9. Operational Conditions: Designed to function optimally at altitudes not exceeding 1000m and ambient temperatures below 40°C. If these conditions are not met, adjustments in parameters will conform to standard industry protocols.
All necessary adjustments will be rigorously in compliance with established industry standards to ensure peak performance and reliability.
Power Capacity: Spanning an impressive range from 25-2500KVA.
Voltage Levels: Offering a broad spectrum from 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, to 36KV.
Voltage Level Overview:
Type of Voltage Regulation: Available in versatile options including Off-circuit or On-load for precise control.
Tapping Range: Available in configurations of ±5%, ±2x2.5%, ±4x2.5% for enhanced versatility.
Frequency Options: Provided in adaptable variants of 50Hz or 60Hz to match operational demands.
Phases: Offering the flexibility of Three-phase or single-phase options to meet specific needs.
Connection Symbol: Customizable as Dyn11, Yyn0, with additional customization opportunities upon request.
Short-circuit Impedance: Expertly designed with Standard Impedance for reliable and consistent performance.
Operational Conditions: Optimized for altitudes up to 1000m and ambient temperatures capped at 40°C.
In cases where operational conditions differ, we are committed to performing all necessary parameter adjustments in strict adherence to standard guidelines.
This fully sealed oil-immersed power transformer from Chaotai Power is an emblem of innovative genius. Engineered for minimal energy wastage, silent operation, and remarkable efficiency, it emerges as a leading energy-saving solution, significantly diminishing pollution.
Setting itself apart from conventional oil-immersed transformers, this advanced fully sealed design does away with the oil conservator. It ingeniously manages oil volume variations through the elasticity of its corrugated oil tank sheet, ensuring complete air isolation. This pivotal feature safeguards against oil degradation, delays insulation aging, and enhances reliability, eliminating the necessity for routine maintenance altogether.
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 at the forefront of electrical integration with a reputation for groundbreaking technology and innovation. As a prestigious high-tech enterprise, our company boasts a rich tapestry of over 15 years of industry experience, supported by dedicated R&D, production, and service teams. Our steadfast commitment to excellence has solidified our leadership role in pioneering innovation, consistently setting the highest benchmarks in the industry.
Our expansive product portfolio features advanced and 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 critical across a spectrum of industries, including energy, chemical, metal smelting, electric power grids, and industrial manufacturing. Our influence extends into academia, healthcare, municipal commerce, water management, hydropower, and road traffic, thriving in both commercial and residential arenas. We are proud to shape the future with transformative solutions, leaving a lasting impact across these vital sectors.
With a philosophy rooted in relentless technological progress and 'smart manufacturing,' we foster a culture of excellence through the integration of elite technical talents and innovative strategies. This strategic focus enhances our core competencies, ensuring unmatched service value for our clients. Our evolution from humble beginnings to industry leadership epitomizes our core values, driven by dedication and innovation. Our strategy prioritizes quality as the key to survival, reputation as the path to growth, and management efficiency as the catalyst for profitability. We are committed to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent initiatives. Our vision is to elevate market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations of reaching further and achieving greater success. At our core are integrity, unmatched quality, exceptional service, and customer satisfaction. Our relentless pursuit of excellence drives us to continual innovation, establishing our brand as a trusted name. The esteem of our valued customers fuels our ambition. We extend heartfelt appreciation to our loyal customers, both new and long-standing, 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.