Product Description



Oil Immersed Series Transformer:
The S11-M series fully sealed oil-immersed power transformer, a proud innovation by Chaotai Power, boasts superior features like low loss, minimal noise, and exceptional efficiency. These characteristics not only promote substantial energy conservation but also significantly reduce environmental pollution. Unlike ordinary oil-immersed transformers, this advanced model eliminates the need for an oil conservator. The adaptable corrugated oil tank automatically adjusts and compensates for the oil volume fluctuations, maintaining a constant isolation from air. This design innovation effectively delays oil deterioration and insulation aging, greatly enhancing operational reliability and negating the need for maintenance during regular operation.
1. Power Capacity: 25-2500KVA, with voltage options of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable configurations as per customer requirements. 2. Voltage Level: Available at 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV.
4. Tapping Range: Choose from ±5%, ±2x2.5%, or ±4x2.5% for precise voltage adjustments.
5. Frequency Options: Compatible with both 50Hz and 60Hz systems.
6. Phase Configuration: Available in Three-Phase or Single-Phase versions, offering versatility for various applications.
7. Connection Symbol: Options include Dyn11, Yyn0, or tailored to specific requests, offering flexible connection solutions.
8. Short-Circuit Impedance: Designed with Standard Impedance to ensure dependable performance and safety.
9. Altitude adaptability: Suitable for altitudes not exceeding 1000m, with an ambient temperature threshold of 40°C.
Should these conditions not be met, we will adjust parameters in alignment with standard requirements.
Power Capacity: Ranges from a versatile 25KVA to a robust 2500KVA, accommodating a wide array of power needs.
Voltage Capacity: Offering a spectrum from 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, to 22KV, ensuring compatibility with various systems.
Voltage Level: Provides multiple voltage levels for diverse applications and specific requirements.
Voltage Regulation: Available in Off-circuit or On-load types, catering to different operational preferences.
Tapping Range: Provides flexibility with options of ±5%, ±2x2.5%, and ±4x2.5%, allowing for precise system tuning.
Frequency: Designed to operate seamlessly with both 50Hz and 60Hz, ensuring compatibility with global standards.
Phases: Choose between Three-Phase or Single-Phase, depending on your power distribution needs.
Connection Symbol: Versatile options like Dyn11, Yyn0, or customized configurations to meet specific requirements.
Short-Circuit Impedance: Constructed with Standard Impedance for reliable and secure operation across applications.
Altitude and Temperature: Ideal for locations up to 1000m high, withstanding ambient temperatures not exceeding 40°C.
Should environments exceed these specifications, parameters can be adjusted to comply with established standards.
The fully sealed oil-immersed power transformer from Chaotai Power excels in reducing loss and noise while maximizing efficiency, delivering an outstanding energy-saving performance that minimizes ecological impact.
Compared to standard oil-immersed transformers, this innovative fully sealed model foregoes the oil conservator. It autonomously regulates oil volume changes through the elasticity of its corrugated oil tank sheet. This design ensures complete air isolation, slowing oil degradation and insulation aging, boosting reliability, and eliminating maintenance during routine 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 as a beacon of innovation in the electrical integration domain. As a high-tech enterprise, we are powered by a professional R&D, production, and service team boasting over 15 years of robust industry experience.
Our flagship products encompass a diverse array of cutting-edge solutions such as high-voltage solid-state soft starters, capacitor cabinets, and both high and low voltage switchgear. We also specialize in advanced gas-insulated switchgear and state-of-the-art substations. Our expansive reach includes critical sectors from energy and chemical industries to metal smelting, electric power grids, and beyond. Our innovations are pivotal in industrial manufacturing, academic research institutions, medical and pharmaceutical sectors, as well as municipal commerce, water conservancy and hydropower, road traffic infrastructure, and thriving commercial and residential areas.
Embracing 'smart manufacturing' as our technological innovation mantra, we aggressively recruit top-tier technical talent to solidify our core competencies. Our commitment is to deliver unparalleled value to our clients, aspiring to forge the industry's leading brand. From our humble inception, we've made monumental strides, transforming from nonexistence to excellence. Our ethos is rooted in quality-driven survival, strategic market orientation, reputation-led growth, and efficiency through astute management. Our guiding principle places technology at the forefront, complemented by standardized management, superior quality, and ultimate customer satisfaction. We aim to bolster our market position, serving China's power transmission and distribution sectors with ambitious new heights. Integrity remains our cornerstone, with quality esteemed and service exalted, ensuring customer satisfaction as our perpetual mission. We are relentless in our pursuit of excellence and innovation, striving to build a brand synonymous with trust. Our clients' recognition fuels our passion, and we express our heartfelt gratitude to all our esteemed customers for their unwavering support. Together, with Senhang Technology, we envision paving a brighter, collaborative 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.