Product Description



Oil Immersed Series Transformer:
The S11-M series, a fully sealed oil-immersed power transformer crafted by Chaotai Power, boasts remarkable features like low loss, minimal noise, and impressive efficiency. This translates into exceptional energy-saving benefits and minimized pollution. Unlike ordinary oil-immersed transformers, this advanced model eliminates the oil conservator and utilizes the elasticity of corrugated sheets in the oil tank to automatically adjust and compensate for changes in oil volume. This innovative design ensures the transformer remains isolated from air, preventing oil deterioration and insulation aging while enhancing reliability and eliminating the need for maintenance during standard operations.
1. Power Capacity: Ranging from 25-2500KVA, available in 24KV, 30KV, 33KV, 35KV, 36KV, and customized options tailored to customer requirements. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load configurations.
4. Tapping Range: Options include ±5%, ±2x2.5%, ±4x2.5% to suit specific needs.
5. Frequency: Designed for 50Hz or 60Hz operations.
6. Phases: Available in both Three-phase and Single-phase configurations.
7. Connection Symbol: Dyn11, Yyn0, or tailored as per customer requests.
8. Short-Circuit Impedance: Standard impedance levels ensure optimal performance.
Altitude should not exceed 1000m, with ambient temperature up to 40°C. If these conditions are not met,
we will adjust parameters to meet industry standards, ensuring reliable performance.
Power Capacity: Offers a robust range from 25-2500KVA.
Voltage Levels include: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV.
Voltage Level:
Type of Voltage Regulation: Flexibility with Off-circuit or On-load regulation.
Tapping Range: Providing options like ±5%, ±2x2.5%, ±4x2.5% to cater to varying demands.
Frequency: Compatible with both 50Hz and 60Hz systems.
Phases: Configurable in Three or Single-phase systems to suit diverse applications.
Connection Symbol: Options such as Dyn11, Yyn0, or as per specific customer requirements.
Short-Circuit Impedance: Maintains standard impedance for consistent performance.
Altitude limit is 1000m, and the ambient temperature should not exceed 40°C to ensure optimum functioning.
If these environmental conditions are exceeded, we will fine-tune parameters to comply with industry standards.
Chaotai Power's fully sealed oil-immersed transformer is engineered to deliver low loss, reduced noise, and high efficiency, ensuring substantial energy savings and minimal environmental impact.
In contrast to traditional oil-immersed transformers, this fully sealed model eliminates the oil conservator. It smartly adjusts oil volume changes using the corrugated sheet's elasticity in the oil tank, keeping the transformer air-tight. This design significantly delays oil and insulation deterioration, enhancing operational reliability and negating routine 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 innovation in electrical integration, marking its place as a high-tech enterprise. With a legacy of over 15 years of unparalleled industry experience, we boast a team of dedicated professionals in R&D, production, and service, all committed to pushing the boundaries of what's possible.
Our diverse product line encompasses high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. Proudly serving a spectrum of sectors, our products power the energy and chemical industries, bolster metal smelting operations, enhance electric power grids, elevate industrial manufacturing, and support the educational endeavors of universities and research institutions. Our footprint extends further into the medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower projects, road traffic systems, and both commercial and residential domains.
Embracing the spirit of 'smart manufacturing,' we spearhead technological innovation, attracting high-caliber technical talent to elevate our core competitiveness. Our mission is to deliver unmatched value to our clients while forging the industry's premier brand. From our humble beginnings, we've evolved, consistently achieving milestones and setting new standards of excellence. Guided by a commitment to quality, market orientation, reputation-driven growth, and management efficiency, we uphold a modern business ethos. Our quality management revolves around technology, standardized processes, exceptional quality, and unwavering customer satisfaction. Integrity remains our foundation, quality our hallmark, and service our pledge, ensuring customer satisfaction as our perpetual goal. We are relentless in our pursuit of excellence and innovation, crafting a brand that inspires trust. Your trust propels us forward, and we extend our heartfelt gratitude to our esteemed clients, past and present. Together with Senhang Technology, we eagerly anticipate a collaborative journey towards a brighter future.
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.