Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil-immersed power transformer, a remarkable innovation by Chaotai Power. This advanced transformer delivers exceptional performance characterized by low loss, minimal noise, and outstanding efficiency. Experience substantial energy savings while significantly reducing pollution. What sets this transformer apart is its unique design, which eliminates the need for an oil conservator. The oil volume changes are adeptly managed and compensated by the flexible corrugated sheet of the oil tank, ensuring the transformer remains isolated from air exposure. This design feature not only slows oil deterioration and insulation aging but also significantly enhances operational reliability, thus eliminating the need for routine maintenance.
1. Power Capacity: Ranging from 25KVA to 2500KVA, offering voltage options at 24KV, 30KV, 33KV, 35KV, 36KV, and customizable solutions to meet specific customer requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, and 20KV, with options for 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation for precise control.
4. Tapping Range: Enjoy flexibility with a tapping range of ±5%, along with options of ±2x2.5% and ±4x2.5% for optimized performance.
5. Frequency: Compatible with both 50Hz and 60Hz frequency requirements.
6. Phases: Available in both Three-phase and Single-phase configurations, tailored to your needs.
7. Connection Symbol: Arranged as Dyn11, Yyn0, or customized as per request to suit specific application demands.
8. Short-Circuit Impedance: Engineered to adhere to Standard Impedance norms, ensuring reliable performance.
9. Altitude and Temperature Conditions: Designed to function optimally at altitudes not exceeding 1000m, with ambient temperature not surpassing 40°C. If these conditions are not met, parameters will be adjusted accordingly to standard requirements.
Tailored adjustments to meet standard regulations ensure continued optimal performance.
Power Capacity: Offering a robust range from 25KVA up to 2500KVA for diverse application needs.
Voltage Options: Extensive array including 10KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV, catering to various requirements.
Voltage Level: Comprehensive options tailored to specific system demands.
Type of Voltage Regulation: Precision control with choices of Off-circuit or On-load regulation.
Tapping Range: Flexibility in operation with ±5%, ±2x2.5%, and ±4x2.5% options.
Frequency Adaptability: Supports both 50Hz and 60Hz systems for global compatibility.
Phases: Versatile options available in Three-phase and Single-phase.
Connection Symbol: Configurable as Dyn11, Yyn0, or tailored upon request.
Short-Circuit Impedance: Conforms to Standard Impedance for dependable performance.
Environmental Conditions: Designed for altitudes up to 1000m and temperatures up to 40°C, with customizable solutions for varying conditions.
In cases where standard conditions are not met, our products are adjustable to align with standard parameters, ensuring reliable performance.
The fully sealed oil-immersed power transformer from Chaotai Power showcases extraordinary attributes such as reduced loss, minimized noise, and exceptional efficiency. This not only promotes energy savings but also plays a crucial role in pollution reduction.
Unlike conventional oil-immersed transformers, this innovative fully sealed model dispenses with the oil conservator. Automatic adjustment and compensation for oil volume changes are achieved through the elastic properties of the corrugated oil tank sheet. This isolation from air exposure plays a pivotal role in decelerating oil degradation and insulation aging. It significantly boosts operational reliability and eliminates the need for continuous 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 advanced technology in the realm of electrical integration. Our high-tech enterprise boasts a dynamic R&D, production, and service team enriched with over 15 years of unparalleled industry experience, dedicated to pushing the boundaries of excellence.
Our product portfolio showcases cutting-edge innovations including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, advanced gas-insulated switchgear, and robust substations. These refined products are meticulously designed to meet the diverse demands across a myriad of sectors such as energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academic institutions, the medical and pharmaceutical realm, municipal commerce, water conservancy and hydropower, road traffic systems, as well as commercial and residential infrastructure.
Driven by the spirit of innovation and a commitment to 'smart manufacturing,' we actively integrate high-level technical expertise to amplify our core competencies. Our goal is to deliver exceptional value to our clients and to ascend as the premier brand in the industry. Since our inception, we have steadily evolved, transforming from a nascent setup into a distinguished entity of excellence. We adhere to a progressive business strategy centered on survival through superior quality, market responsiveness, development through an esteemed reputation, and operational efficiency through astute management. Our unwavering commitment is captured in our motto: 'technology as the guide, standardized management, exceptional quality, and customer satisfaction.' By enhancing our competitive edge in the market, we strive to lead the transmission and distribution sectors of China's electric power grid with agility, strength, and elevated objectives. Integrity is our cornerstone, quality is our promise, service is our hallmark, and customer satisfaction is our perpetual commitment. We pursue excellence, embrace continuous innovation, and are dedicated to forging a brand synonymous with trust. Your recognition fuels our drive. We extend our deepest gratitude to our loyal patrons for their unwavering support and look forward to forging a brighter future together with Senhang Technology as your trusted partner.
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.