Product Description



Oil Immersed Series Transformer:
Introducing the revolutionary S11-M series fully sealed oil immersed power transformer, meticulously crafted by Chaotai Power. This innovative marvel stands out with its exceptional low loss, minimal noise, and superior efficiency, delivering a remarkable energy-saving performance while significantly reducing pollution. Distinct from the standard oil immersed transformers, this fully sealed variant ingeniously eliminates the oil conservator. It boasts a self-regulating oil volume adjustment, effortlessly managed through the elasticity of the corrugated sheet within the corrugated oil tank. Encapsulated and shielded from the external atmosphere, this transformer is designed to curb the deterioration of oil and slow down insulation aging. It enhances operational reliability, ensuring maintenance-free operation under standard conditions.
1. Power Capacity: 25-2500 KVA, 24KV, 30KV, 33KV, 35KV, 36KV, with customizable options to suit customer needs. 2. Voltage Level: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Off-circuit or On-load modifications.
4. Tapping Range: Versatile options include ±5%, 2x2.5%, ±4x2.5% for tailored performance.
5. Frequency: Available in both 50Hz and 60Hz to accommodate diverse operational environments.
6. Phases: Choose between Three or Single phase configurations for optimal application.
7. Connection Symbol: Dyn11, Yyn0, or custom symbols upon request.
8. Short-Circuit Impedance: Conforms to Standard Impedance protocols.
9. Altitude Consideration: Operational altitude not exceeding 1000m and ambient temperature not exceeding 40°C. If these conditions are not met, we diligently adapt parameters to comply with international standards.
In such scenarios, parameter modulation is done in accordance with recognized standards.
Power Capacity: Ranges from 25 to 2500 KVA, ensuring versatility and adaptability.
Voltage Specifications: 10KV, 11KV, 13.8KV, 15KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, meeting diverse electrical requirements.
Voltage Level: Diverse levels to match specific electrical needs.
Type of Voltage Regulation: Options for Off-circuit or On-load, tailored to your precise specifications.
Tapping Range: Multiple settings like ±5%, ±2x2.5%, ±4x2.5% ensure adaptability.
Frequency: Designed for compatibility with 50Hz or 60Hz power systems.
Phases: Available in Three or Single phase configurations to best suit your electrical setup.
Connection Symbol: Options include Dyn11, Yyn0, or customized as per request for optimal integration.
Short-Circuit Impedance: Adheres strictly to Standard Impedance guidelines.
Operational Conditions: Altitude should not exceed 1000m, with temperature conditions not surpassing 40°C.
Should these operational conditions not align, we are committed to adjusting parameters in accordance with stringent standards.
The cutting-edge fully sealed oil-immersed power transformer, an exclusive development by Chaotai Power, offers unparalleled low loss, minimal noise, and extraordinary efficiency. It is a beacon of energy-saving potential, significantly curtailing pollution.
In comparison to the conventional oil-immersed transformer, this fully sealed transformer eliminates the need for an oil conservator. Oil volume changes are seamlessly handled by the flexible corrugated sheet within the oil tank. This design effectively isolates the transformer from air exposure, mitigating oil degradation and retardation of insulation aging. It ensures enhanced reliability in operation and negates the need for maintenance during regular use.
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 as a leading high-tech enterprise in the dynamic realm of electrical integration. Our dedicated team, seasoned with over 15 years of industry expertise, excels in research, development, production, and service, ensuring pioneering solutions in the electrical sector.
Our diverse portfolio includes cutting-edge high-voltage solid-state soft starters, advanced capacitor cabinets, robust high and low voltage switchgear, state-of-the-art gas-insulated switchgear, and efficient substations. These products are integral to a myriad of industries such as energy, chemical, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water conservancy, hydropower, road traffic, and both commercial and residential sectors, showcasing our versatility and wide-ranging applicability.
Embracing innovation and embodying our 'smart manufacturing' philosophy, we diligently recruit top-tier technical talents to amplify our core competitive edge, while consistently delivering exceptional value to our clientele. Our journey from inception reflects a path of relentless progress, evolving from humble beginnings to a benchmark of excellence. Anchored in our principles of quality as a foundation, market adaptability, reputation-driven growth, and management-led efficiency, we are devoted to 'technology-driven leadership, standardized management, impeccable quality, and ultimate customer satisfaction.' These tenets fortify our market position, empowering us to set ambitious targets in serving China's electric power and grid distribution sectors with unprecedented speed, strength, and ambition. Integrity remains our bedrock, quality is our creed, unparalleled service is our promise, and customer delight is our everlasting commitment. Driven by a passion for excellence, perpetual innovation, and the creation of a reliable brand, our development objectives remain steadfast. Your trust and support fuel our journey. We extend heartfelt gratitude to both new and loyal patrons for your unwavering support. Zhejiang ChaoTai Complete Equipment Co., Ltd. eagerly anticipates collaborating with you to architect a brighter, prosperous future together.
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.