Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series fully sealed oil immersed power transformer, a remarkable innovation by Chaotai Power. This transformer is designed with a focus on performance, featuring low loss, minimal noise, and exceptional efficiency. Such features not only contribute to significant energy savings but also play a pivotal role in reducing environmental pollution. By eliminating the need for an oil conservator, our fully sealed transformer seamlessly adjusts and compensates for changes in oil volume using the corrugated sheet's elasticity. This design ensures the transformer remains isolated from air, thereby preventing and mitigating oil deterioration and insulation aging. As a result, this enhances operational reliability and minimizes the need for maintenance during regular operations.
1. Power Capacity: Ranging from 25KVA to an impressive 2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable choices to meet specific customer requirements. 2. Voltage Level: Versatile options including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between off-circuit or the dynamic on-load regulation.
4. Tapping Range: Offers flexibility with ±5 %, 2x2.5 %, and ±4x2.5 %.
5. Frequency: Compatible with both 50Hz and 60Hz, catering to global standards.
6. Phases: Available in both three-phase and single-phase configurations.
7. Connection Symbol: Options include Dyn11 and Yyn0, or tailored to your specific requirements.
8. Short-circuit Impedance: Adheres to standard impedance regulations.
9. Altitude and Temperature: Designed for altitudes not exceeding 1000m and ambient temperatures under 40°C. lf such conditions are exceeded, we offer parameter adjustments
in accordance with industry standards to ensure optimal performance.
Power Capacity: From a flexible range of 25KVA to a robust 2500KVA.
Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 24KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level:
Type of Voltage Regulation: Available in both off-circuit and on-load types.
Tapping Range: Flexibility with ranges of ±5%, ±2x2.5%, and ±4x2.5%.
Frequency: Compatible with 50Hz or 60Hz standards.
Phases: Offered in three-phase or single-phase options.
Connection Symbol: Options include Dyn11 and Yyn0, with custom configurations available.
Short-circuit Impedance: Complies with standard impedance metrics.
Altitude and Temperature: Suitable for locations up to 1000m elevation and temperatures below 40°C.
For conditions exceeding the standard, we provide parameter adjustments to align with regulatory standards.
The fully sealed oil immersed power transformer by Chaotai Power boasts low loss, quiet operation, and high efficiency, promoting energy savings and minimizing pollution.
In contrast to conventional oil immersed transformers, the fully sealed design eliminates the oil conservator, using the corrugated oil tank's elasticity for automatic oil volume adjustment. This approach isolates the transformer from air, hindering oil degradation and insulation aging, thus boosting reliability and reducing maintenance in typical operational scenarios.
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 sphere of electrical integration. As a distinguished high-tech enterprise, we boast a dynamic R&D, production, and service team, richly endowed with over 15 years of industry expertise.
Our core offerings are expansive, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. Our cutting-edge products are the backbone across a multitude of sectors such as energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, educational institutions, the medical and pharmaceutical realm, municipal commerce, water conservancy and hydropower, road transportation, and both commercial and residential projects.
We are steadfast in our commitment to technological advancement and embody the 'smart manufacturing' philosophy. To fortify our competitive edge, we actively recruit top-tier technical talent. Our relentless pursuit of innovation positions us to deliver unparalleled value and to forge the premier brand in our industry. Our journey is marked by a transformation from nascent beginnings to industry excellence. We prioritize quality and align our strategy to be market-driven, building our reputation and enhancing efficiency through astute management. Our dedication to 'technology-driven guidance, standardized management, superior quality, and customer satisfaction' enhances our competitive stance in the market. We are laser-focused on serving China's power and grid sectors with accelerated, robust, and elevated objectives. With integrity as our foundation, quality as our priority, and service as our essence, customer satisfaction remains our unwavering commitment. Our goals are defined by pursuing excellence, fostering innovation, and establishing a brand synonymous with trust. Your endorsement fuels our journey forward. Our deepest gratitude to our loyal patrons for their unwavering support, and Senhang Technology eagerly anticipates a collaborative future, crafting a brighter tomorrow 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.