Product Description



Oil Immersed Series Transformer:
The S11-M series, a fully sealed oil immersed power transformer crafted by Zhejiang Chaotai Complete Equipment Co., Ltd., epitomizes innovation with its low loss, low noise, and high efficiency. This powerhouse paves the way for significant energy savings while minimizing environmental impact. In contrast to traditional counterparts, this advanced transformer eliminates the need for an oil conservator. Instead, it employs the remarkable flexibility of the corrugated oil tank's sheet to automatically adjust and compensate for changes in oil volume. Being isolated from air, it slows oil degradation and insulation aging, thereby boosting reliability and largely negating the need for maintenance under normal conditions.
1. Power Capacity: From a robust 25KVA up to a formidable 2500KVA, accommodating a range of voltage levels including 24KV, 30KV, 33KV, 35KV, 36KV, and others tailored to customer specifications. 2. Voltage Level: Choose from 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Available in Off-circuit or On-load models.
4. Tapping Range: Precision options include ±5%, ±2x2.5%, ±4x2.5%.
5. Frequency: Optimized for both 50Hz and 60Hz usage.
6. Phases: Configurable in Three or Single phase options.
7. Connection Symbol: Flexible configurations available with Dyn11, Yyn0, or as per request.
8. Short-Circuit Impedance: Complies with Standard Impedance.
9. Altitude: Operates seamlessly at altitudes not exceeding 1000m and ambient temperatures up to 40°C. If conditions vary, adjustments are made according to standards.
Standard adjustments ensure optimal performance under varying environmental conditions.
Power Capacity: Generous range from 25-2500KVA to meet diverse needs.
Voltage Level Options: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV - delivering flexibility and precision.
Voltage Level:
Type of Voltage Regulation: Versatile options with Off-circuit or On-load regulation.
Tapping Range: Offers range adjustments of ±5%, ±2x2.5%, ±4x2.5% for precision control.
Frequency: Adaptable for both 50Hz and 60Hz requirements.
Phases: Available in Three or Single phase to suit various applications.
Connection Symbol: Customize with Dyn11, Yyn0, or upon request.
Short-Circuit Impedance: Ensures adherence to Standard Impedance specifications.
Altitude: Functional below 1000m with temperatures not exceeding 40°C.
In the event of non-standard conditions, parameter adjustments are made to comply with established standards.
The fully sealed oil immersed power transformer by Chaotai Power offers remarkable advantages including low loss, minimal noise, and outstanding efficiency, translating into excellent energy savings and minimal environmental footprint.
This innovative transformer contrasts with ordinary models by eliminating the oil conservator. It uses the elasticity of the corrugated oil tank sheet to adjust and compensate for oil volume changes, isolating the transformer from air to prevent oil degradation and insulation aging, enhancing operational reliability and minimizing 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 technological innovation in the realm of electrical integration. As a pioneering high-tech enterprise, we boast a distinguished team of R&D, production, and service professionals who bring over 15 years of rich industry expertise to the table.
Our product line is diverse and cutting-edge, encompassing high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These products have found their vital applications across a multitude of sectors including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, educational and research institutions, medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower projects, road traffic, and both commercial and residential areas. They are integral to enhancing efficiency and reliability in these industries.
Embracing a philosophy rooted in technological innovation and 'smart manufacturing,' we are committed to elevating our core competitiveness by introducing top-tier technical talent. Our mission is to deliver unparalleled value to customers while sculpting the industry's leading brand. Since our inception, we have journeyed from nonexistence to excellence through relentless progress. Our approach is modern, emphasizing survival through exceptional quality, market-focus, reputation-driven development, and efficiency with strategic management. Anchored by the tenets of 'technology leadership, standardization, superior quality, and customer satisfaction,' we enhance our market presence to better serve China's electric power and grid sectors with ambitions of speed, strength, and superior goals. Integrity, quality, service, and customer satisfaction are the pillars of our philosophy. We are passionately dedicated to achieving excellence, fostering innovation, and cultivating a brand our clients trust implicitly. Your trust is our inspiration. We extend our heartfelt gratitude to our loyal customer base for their unwavering support. Together with Senhang Technology, we eagerly anticipate forging a brighter future hand in hand.
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.