Product Description
Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil-immersed power transformer by Chaotai Power. Revel in its remarkable advantages of low loss, minimal noise, and outstanding efficiency. This engineering marvel not only promotes energy savings but also reduces environmental pollution. Unlike ordinary oil-immersed transformers, this fully sealed version eliminates the need for an oil conservator. Instead, it cleverly adjusts and compensates the oil volume through the elasticity of the corrugated oil tank's sheet. By encapsulating the transformer away from air exposure, it significantly retards oil degradation and insulation aging, thereby boosting operational reliability and rendering maintenance virtually unnecessary under normal operations.
1. Power Capacity: Ranging from 25 to 2500KVA, adaptable to 24KV, 30KV, 33KV, 35KV, 36KV, and other specifications as per customer requirements.
4. Tapping Range: Offers flexibility with ±5 %, ±2x2.5 %, and ±4x2.5 % adjustments.
5. Frequency: Operates seamlessly at either 50Hz or 60Hz.
6. Phases: Available in both three-phase and single-phase configurations.
7. Connection Symbol: Configurable as Dyn11 or Yyn0, with bespoke options available upon request.
8. Short-Circuit Impedance: Designed to meet standard impedance requirements.
9. Altitude: Suitable for installations not exceeding 1000m in elevation. Ambient temperature should not exceed 40°C. If these conditions are not met, we will adjust the parameters to comply with standards.
In accordance with these standard adjustments.
Power Capacity: Robust range of 25-2500KVA.
Voltage Capacity: Customizable to meet 10KV to 36KV needs.
Voltage Level: Tailored solutions available.
Type of Voltage Regulation: Choose between off-circuit or on-load capabilities.
Tapping Range: Flexible settings at ±5%, ±2x2.5%, and ±4x2.5%.
Frequency: Compatible with both 50Hz and 60Hz systems.
Phases: Offered in three-phase or single-phase options.
Connection Symbol: Options include Dyn11, Yyn0, or as bespoke configurations.
Short-Circuit Impedance: Consistent with standard impedance specifications.
Altitude: Installations suitable for up to 1000m elevation, with ambient temperatures not exceeding 40°C.
If these conditions aren't met, we will adjust the parameters to align with standards.
The fully sealed oil-immersed power transformer by Chaotai Power is masterfully engineered to deliver low loss, minimal noise, and exceptional efficiency—driving energy savings and minimizing pollution.
In contrast to ordinary transformers, this fully sealed variant eliminates the oil conservator. It innovatively adjusts oil volume through the elasticity of its corrugated oil tank sheet. This design isolates the transformer from air, slowing oil deterioration and insulation aging, enhancing operational reliability, and reducing the need for maintenance in normal operation.
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 at the forefront of electrical integration as a distinguished high-tech enterprise. With an esteemed team devoted to research, development, production, and service excellence, we bring over 15 years of rich industry experience to the table, ensuring that we lead with innovation and expertise.
Our diverse product portfolio features high-voltage solid-state soft starters, capacitor cabinets, sophisticated high and low voltage switchgear, state-of-the-art gas-insulated switchgear, and robust substations. These products are the backbone of various sectors, widely implemented across energy and chemical industries, metal smelting operations, electric power grids, industrial manufacturing hubs, and more. From academic institutions and cutting-edge research facilities to the medical and pharmaceutical spheres, our solutions cater to municipal commerce, water conservancy projects, hydropower initiatives, road traffic systems, and both commercial and residential areas, ensuring efficiency and reliability.
Driven by a relentless pursuit of technological innovation, Zhejiang ChaoTai adheres to the philosophy of 'smart manufacturing.' By integrating top-tier technical talent, we significantly bolster our core competencies, providing unparalleled services aimed at crafting the finest brand in the industry. Since our inception, we have charted a remarkable journey of growth, consistently transforming from inception to excellence. Our strategic focus rests on a modern business ethos that emphasizes quality for survival, market orientation, development through an impeccable reputation, and efficiency through precise management. We are pledged to 'technology as our compass, standardized management, exceptional quality, and ultimate customer satisfaction'—principles that underpin our competitive edge in the market. Our commitment is unwavering as we advance the fields of transmission and distribution in China's electric power landscape, setting ambitious targets for speed, strength, and superior solutions. Integrity forms our bedrock, quality is our hallmark, service is our prime commitment, and customer satisfaction remains our eternal mission. As we strive for excellence and innovation, we aim to construct a brand synonymous with trustworthiness. Your recognition fuels our dedication, and we extend heartfelt gratitude to our loyal clients for their unwavering support. Zhejiang ChaoTai eagerly anticipates partnering with you to forge a future brimming with promise.
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.
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