Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series from Chaotai Power, a groundbreaking fully sealed oil-immersed power transformer crafted to perfection. Revel in its extraordinary advantages such as minimal energy loss, whisper-quiet operation, and peak efficiency, all contributing to outstanding energy savings and environmental protection. This transformer revolutionizes the conventional design by eliminating the oil conservator. It ingeniously adapts to oil volume changes using the flexible corrugated oil tank, effectively isolating the transformer from air exposure. This ingenious design prolongs the integrity of the oil, mitigates insulation degradation, boosts operational reliability, and ensures maintenance-free use under normal conditions.
1. Power Capacity: Ranges from 25 to 2500KVA, adaptable to 24KV, 30KV, 33KV, 35KV, 36KV, or customized to meet customer specifications. 2. Voltage Level: Offers versatile options including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit and On-load configurations.
4. Tapping Range: Options include ±5 %, 2x2.5 %, and ±4x2.5 % for precise performance adjustments.
5. Frequency: Configurable to operate seamlessly at either 50Hz or 60Hz.
6. Phases: Available in both three-phase and single-phase models for varied applications.
7. Connection Symbol: Standard options include Dyn11 and Yyn0, with custom configurations upon request.
8. Short-Circuit Impedance: Adheres to the standard impedance for optimal performance.
9. Altitude: Operational up to 1000m, with ambient temperatures not exceeding 40°C. Should these conditions not suffice, we will adjust parameters to align with standard specifications.
In the event environmental conditions exceed specifications, adjustments will be made to ensure conformity with established standards.
Power Capacity: Spanning from 25 to 2500KVA, designed for a wide range of applications.
Voltage Levels Available: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, as well as higher range options such as 30KV, 33KV, 35KV, and 36KV.
Voltage Level Options:
Voltage Regulation Type: Choose between Off-circuit and On-load for tailored performance.
Tapping Range Variants: ±5%, ±2x2.5%, and ±4x2.5% for customized tuning.
Frequency Configurations: Designed to accommodate both 50Hz and 60Hz.
Phase Availability: Options include both three-phase and single-phase designs.
Connection Symbols: Standard configurations include Dyn11 and Yyn0, with flexible options upon request.
Short-circuit Impedance: Designed to meet standard impedance requirements.
Operational Conditions: Suitable for altitudes up to 1000m, with ambient temperatures not exceeding 40°C.
When environmental conditions exceed standard parameters, necessary adjustments are made to comply with industry standards.
The fully sealed oil-immersed power transformer from Chaotai Power stands out with its remarkable benefits: minimal energy loss, quiet operation, and high efficiency. Experience significant energy savings and a reduction in environmental impact.
This advanced fully sealed transformer sets a new benchmark by eliminating the oil conservator. It deftly adjusts to changes in oil volume via the corrugated oil tank's elasticity, effectively preventing air exposure. This design innovation significantly slows oil degradation and insulation aging, boosts operational reliability, and maintains a maintenance-free status during standard operations.
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 in the domain of electrical integration, and is recognized as a high-tech enterprise of repute. Our journey is powered by a team of seasoned professionals passionate about Research & Development, production, and exceptional service, boasting over 15 years of rich industry experience.
Our extensive product portfolio features cutting-edge solutions including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and sophisticated substations. These products have garnered widespread application across diverse sectors, embracing energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, universities and research institutions, medical and pharmaceutical fields, municipal commerce, water conservancy and hydropower, road traffic management, and both commercial and residential zones.
Our commitment to technological innovation is unwavering, guided by the philosophy of 'smart manufacturing.' We actively recruit top-tier technical talents to significantly elevate our core competitiveness, offering unparalleled services to our cherished customers and aspiring to establish the industry's most esteemed brand. Since our inception, we have charted an impressive trajectory of growth, transforming from a nascent stage to one of excellence. Emphasizing continuous innovation, we pursue a modern business ethos of quality-driven survival, market-focused strategies, reputation-led development, and management-enhanced efficiency. Our guiding principles of 'technology leadership, standardized management, superior quality, and customer satisfaction' underpin our dedication to excellence in quality and technical talent management. We relentlessly aim to bolster our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations of unprecedented speed, strength, and ambition. Our foundational values pivot around integrity, prioritizing quality, and delivering outstanding service with customer satisfaction as our perpetual mission. We pledge to pursue excellence, foster continuous innovation, and forge a brand synonymous with trustworthiness. Your recognition fuels our motivation. We extend heartfelt gratitude to all our loyal customers, both new and old, for their unwavering support and affection. Zhejiang ChaoTai Complete Equipment Co., Ltd. eagerly anticipates collaborating with you to forge a brighter 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.