Product Description



Oil Immersed Series Transformer:
Zhejiang Chaotai Complete Equipment Co., Ltd. proudly presents the S11-M series fully sealed oil immersed power transformer. This exceptional innovation boasts remarkable advantages including low loss, minimal noise, and high efficiency. Its energy-saving capabilities significantly reduce pollution, making it an eco-friendly choice. In contrast to conventional oil immersed transformers, our state-of-the-art fully sealed design eliminates the oil conservator. The oil volume adapts automatically, thanks to the elasticity of the corrugated sheets in the oil tank. This design maintains isolation from air, thereby preventing oil deterioration and insulation aging, while boosting operational reliability. Enjoy seamless performance without the hassle of regular maintenance under standard operations.
1. Power Capacity: Available in a range from 25KVA to an impressive 2500KVA, adaptable to your specific requirements. 2. Voltage Level: Supported levels include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and up to 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation to suit your operational demands.
4. Tapping Range: Offers extensive versatility with options like ±5 %, 2x2.5 %, and ±4x2.5 % for precise customization.
5. Frequency: Designed to operate efficiently at both 50Hz and 60Hz frequencies.
6. Phases: Flexible configurations available in both Three or Single phase systems.
7. Connection Symbol: Configurable as Dyn11,Yyn0, or tailor-made as per your requirements.
8. Short-circuit Impedance: Conforms to standard impedance, ensuring reliable operation.
9. Altitude: Not exceeding 1000m, with ambient temperatures not exceeding 40°C.
If the environmental conditions differ, rest assured as we will adjust parameters in alignment with industry standards.
Power capacity ranging from 25KVA to a robust 2500KVA.
Extensive Voltage Range: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV.
Voltage Level: Available in multiple configurations for a variety of applications.
Type of Voltage Regulation: Offers flexibility with Off-circuit or On-load regulation as per your needs.
Tapping Range: Features diverse settings like ±5%, 2x2.5%, and ±4x2.5% for optimal adaptability.
Frequency: Compatible with standard frequencies of 50Hz and 60Hz.
Phases: Available in Three or Single phase, catering to different operational setups.
Connection Symbol: Options include Dyn11, Yyn0, or as customized per request.
Short-circuit Impedance: Meets standard impedance requirements for dependable performance.
Altitude and temperature limits: Not exceeding 1000m in altitude and 40°C in ambient temperature.
Should environmental conditions deviate, we ensure parameter adjustments to adhere to established standards.
The fully sealed oil immersed power transformer, crafted by Chaotai Power, offers unmatched low loss, reduced noise, and superior efficiency. Its energy-saving prowess contributes to pollution reduction, making it an ideal choice for sustainable power solutions.
Unlike traditional oil immersed transformers, this cutting-edge fully sealed model eliminates the need for an oil conservator. Its unique design allows automatic adjustment and compensation of oil volume using the corrugated tank's elasticity. The transformer remains isolated from air, effectively slowing oil deterioration and insulation aging, thus improving operational reliability and eliminating the need for maintenance during normal 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. is a distinguished high-tech enterprise dedicated to pioneering advancements in electrical integration. With a sophisticated blend of expertise spanning over 15 years, our exceptional R&D, production, and service team stands at the forefront of innovation in the industry.
Our distinguished product lineup encompasses high-voltage solid-state soft starters, sophisticated capacitor cabinets, advanced high and low voltage switchgear, cutting-edge gas-insulated switchgear, and state-of-the-art substations. Our innovative solutions seamlessly integrate into a myriad of sectors including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academic research, medical and pharmaceutical fields, municipal commerce, water conservancy and hydropower, road traffic systems, as well as vibrant commercial and residential communities.
Firmly rooted in a philosophy of technological innovation and 'smart manufacturing,' we are committed to propelling our company forward by recruiting top-tier technical talent to boost our core competitive edge. Our mission is to deliver unparalleled service, aspiring to establish ourselves as the preeminent brand in the industry. Since our inception, we have embarked on a transformative journey—from humble beginnings to remarkable excellence. Our commitment to innovation is unwavering, and we adhere to a modern business ethos focused on quality-driven survival, market-oriented development, reputation-based growth, and management-led efficiency. Guided by our core principles of 'technology as the guide, standardized management, superior quality, and customer satisfaction,' we continually advance our market competitiveness. Our unwavering commitment is to serve the transmission and distribution sectors of China's electric power and grid with robust, ambitious goals. Integrity is the bedrock of our operations, quality is our hallmark, service is our pledge, and customer satisfaction remains our eternal commitment. Our relentless pursuit of excellence, continuous innovation, and steadfast dedication to building a trustworthy brand are the cornerstones of our enduring success. Your recognition fuels our passion, and we deeply appreciate the unwavering support and affection from both new and loyal customers. Senhang Technology eagerly anticipates collaborating with you to forge a brighter, more 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.