Product Description



Oil Immersed Series Transformer: Experience the next level of innovation and durability with our advanced oil-immersed series transformers, designed for optimal energy efficiency and minimal environmental impact.
The S11-M series fully sealed oil-immersed power transformer, meticulously developed and produced by Chaotai Power, stands out with its superior attributes of low loss, minimal noise, and exceptional efficiency. It delivers remarkable energy-saving benefits while significantly curbing pollution. Unlike conventional oil-immersed transformers, our fully sealed variant eliminates the need for an oil conservator. The oil volume changes are deftly managed and adjusted via the elasticity of the corrugated oil tank's sheet, ensuring the transformer remains hermetically isolated from the air. This design innovation prevents oil degradation, slows insulation aging, bolsters operational reliability, and eliminates the need for routine maintenance.
1. Power Capacity: Ranging from 25-2500KVA, adaptable to 24KV, 30KV, 33KV, 35KV, 36KV, alongside customization to meet clients' specific requirements. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, ensuring a perfect fit for diverse applications. 3. Type of Voltage Regulation: Available with Off-circuit or On-load regulation to suit varying operational needs.
4. Tapping Range: Versatile options of ±5%, ±2x2.5%, and ±4x2.5% to cater to precise voltage adjustments.
5. Frequency: Designed to operate seamlessly at either 50Hz or 60Hz, offering flexibility for different regional standards.
6. Phases: Available in both Three-phase and Single-phase configurations to match specific project requirements.
7. Connection Symbol: Configurable to Dyn11, Yyn0, or as customized per project demands.
8. Short-circuit Impedance: Built to meet Standard Impedance specifications, ensuring reliable performance.
9. Altitude: Suitable for installation at altitudes not exceeding 1000m, with operational integrity sustained at ambient temperatures not exceeding 40°C.
Should environmental conditions exceed these parameters, we will adjust specifications to align with industry standards, ensuring reliable operation regardless of location.
Power Capacity: From 25KVA to a robust 2500KVA, our transformers are engineered to meet diverse power demands with unwavering performance.
Voltage Level: Comprehensive range including 10KV, 22KV, 30KV, 33KV, 35KV, and 36KV, tailored to specific operational needs.
Voltage Level: Offering a broad spectrum of voltage levels to ensure compatibility with various power systems and infrastructures.
Type of Voltage Regulation: Choose between Off-circuit or On-load voltage regulation to best suit your operational requirements.
Tapping Range: Options including ±5%, ±2x2.5%, and ±4x2.5% to enable precise control over voltage adjustments.
Frequency: Adaptable to either 50Hz or 60Hz, accommodating various international electrical standards.
Phases: Available in both three-phase and single-phase to meet the unique demands of different electrical systems.
Connection Symbol: Flexibility in configuration with options like Dyn11 and Yyn0, or tailored as per client specifications.
Short-Circuit Impedance: Built to conform with standard impedance ratings, ensuring reliability and safety.
Altitude and Ambient Conditions: Optimal performance guaranteed at altitudes up to 1000m and ambient temperatures not exceeding 40°C.
In cases where environmental conditions exceed the specified limits, we ensure adjustments in design to maintain compliance with industry standards.
Our fully sealed oil-immersed power transformer, crafted by Chaotai Power, boasts unparalleled advantages like minimal loss, reduced noise, and outstanding efficiency. It provides significant energy savings and environmental benefits.
Unlike conventional models, our fully sealed transformer dispenses with the oil conservator. The oil volume alterations are seamlessly managed through the corrugated oil tank's flexible sheet, keeping the transformer air-isolated. This design innovation mitigates oil and insulation degradation, enhances reliability, and eliminates routine maintenance demands.
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 dynamic world of electrical integration. As a distinguished high-tech enterprise, we boast an impressive professional team specializing in research and development, production, and service, all backed by over 15 years of rich industry experience. Our commitment is to deliver excellence in every facet of our operations.
Our product portfolio is a testament to our expertise and includes an array of advanced solutions such as high-voltage solid-state soft starters, cutting-edge capacitor cabinets, versatile high and low voltage switchgear, efficient gas-insulated switchgear, and robust substations. These products are designed to meet the diverse needs of industries like energy and chemical sectors, metal smelting, power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, transportation infrastructure, and both commercial and residential development, ensuring seamless performance and reliability.
Driven by a relentless pursuit of technological innovation, we embrace the principles of 'smart manufacturing' to elevate our core competitiveness. By welcoming top-tier technical talents, we fortify our capabilities to provide unmatched value to our clientele while striving to establish a preeminent industry brand. Since our inception, we have charted a remarkable journey from fledgling beginnings to industry excellence, fueled by an unwavering dedication to quality, reputation, and managerial efficiency. Our credo is 'technology as the guide, excellence in management, superior quality, and customer delight,' a philosophy that enhances our competitive edge in serving China's power transmission and distribution sectors. Integrity, quality, service, and customer satisfaction are at the heart of our mission. We are committed to perpetual innovation and excellence, cultivating a brand that earns trust and admiration. Your support is our inspiration, and we extend heartfelt gratitude to our valued clients, both new and long-standing. Together with Senhang Technology, we are poised to craft a future brimming with promise and success.
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.