Product Description



Oil Immersed Series Transformer:
The S11-M series, a fully sealed oil-immersed power transformer, is a groundbreaking creation by Chaotai Power. It boasts remarkable features such as low loss, minimal noise, and superior efficiency, ensuring excellent energy conservation and reduced pollution. Unlike conventional oil-immersed transformers, this design eliminates the oil conservator, with oil volume changes being automatically managed by the corrugated oil tank's elastic sheets. This innovation effectively isolates the transformer from air exposure, significantly curbing oil degradation and insulation aging, thereby enhancing reliability and minimizing the need for maintenance during normal operations.
1. Power Capacity: Ranges from 25 to 2500KVA, available in 24KV, 30KV, 33KV, 35KV, 36KV, or customized as per client requirements. 2. Voltage Level: Available options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation.
4. Tapping Range: Offers flexibility with ±5 %, ±2x2.5 %, or ±4x2.5 % adjustments.
5. Frequency: Compatible with both 50Hz and 60Hz power systems.
6. Phases: Available in either three or single-phase configurations.
7. Connection Symbol: Options available include Dyn11, Yyn0, or as per specific requests.
8. Short-Circuit Impedance: Designed with a standard impedance for optimal performance.
9. Altitude is not exceeding 1000m; ambient temperature should not exceed 40°C. If these conditions are unmet, we can adjust parameters accordingly.
If standard conditions are not met, we will adjust parameters to ensure compliance with industry standards.
Power Capacity: Flexible range from 25 to 2500KVA to suit diverse needs.
Voltage Levels: Extensive range including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 24KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level:
Type of Voltage Regulation: Select from Off-circuit or On-load based on application.
Tapping Range: ±5%, ±2x2.5%, ±4x2.5% for versatile operational control.
Frequency: Operates at either 50Hz or 60Hz to accommodate different regions.
Phases: Available as Three-phase or Single-phase for varied application requirements.
Connection Symbol: Configurable as Dyn11, Yyn0, or customized as required.
Short-Circuit Impedance: Maintains a standard impedance for efficient operational stability.
Altitude: Suitable for installations not exceeding 1000m, with ambient temperatures up to 40°C.
If environmental conditions are not met, we modify the parameters to conform to standard specifications.
The fully sealed oil-immersed power transformer from Chaotai Power is a marvel of modern engineering, characterized by its low-loss, low-noise, and high-efficiency performance, which translates to significant energy savings and reduced environmental impact.
Innovatively designed, the fully sealed transformer eliminates the traditional oil conservator, with oil volume fluctuations being adeptly managed by the corrugated oil tank's elasticity. Completely isolated from air, this design significantly mitigates oil and insulation aging, bolstering operational reliability and eliminating the need for 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. is a cutting-edge high-tech enterprise, passionately dedicated to pioneering advancements in electrical integration. Boasting an elite R&D, production, and service team, our company draws on over 15 years of rich industry expertise to transform innovative ideas into exceptional solutions.
Our diverse and sophisticated product portfolio encompasses high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These products are the foundation of numerous sectors including energy and chemical industries, metal smelting, and electric power grids. We extend our impact across industrial manufacturing, academia, the medical field, municipal commerce, water conservancy and hydropower, road traffic, and both commercial and residential domains.
Embracing a philosophy of relentless innovation and 'smart manufacturing', we are tireless in our pursuit of excellence by integrating top-tier technical talent. This commitment magnifies our core strength, enabling us to provide unmatched value and aspire to industry leadership. From our humble beginnings, we have ascended through a journey of transformation and excellence, anchored in quality, reputation, and efficient management. Guided by our principles: 'Technology as the beacon, standardization as the foundation, quality as the hallmark, and customer satisfaction as the ultimate goal', we consistently elevate our market presence. Our mission is to serve China's power and grid sectors with unprecedented speed, strength, and ambition. We hold integrity as our cornerstone, prioritize quality, exalt service, and cherish customer satisfaction as our perpetual ethos. Striving for brilliance and trustworthy brand creation, we see your recognition as our greatest motivation. We express heartfelt gratitude to our cherished customers for their unwavering support, and Senhang Technology eagerly anticipates crafting a bright future hand in hand with you.
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.