Product Description



Oil Immersed Series Transformer:
Introducing the S11-M Series, a fully sealed oil-immersed power transformer meticulously engineered by Chaotai Power. This cutting-edge transformer is synonymous with low loss, minimal noise, and unparalleled efficiency. It promises exceptional energy-saving capabilities and significantly minimizes pollution. Standing out from traditional oil-immersed counterparts, this advanced transformer eliminates the need for an oil conservator. The oil volume changes are seamlessly adjusted through the elasticity of the corrugated oil tank's sheet. This innovation ensures that the transformer remains isolated from the atmosphere, significantly slowing down oil deterioration and insulation aging. Consequently, it elevates operational reliability and assures maintenance-free performance during standard operations.
1. Power Capacity: Ranging from 25-2500KVA, adaptable to 24KV, 30KV, 33KV, 35KV, 36KV, and customized as per customer specifications.
4. Tapping Range: Adjustable by ±5% or through 2 tap settings of ±2.5% or 4 tap settings of ±2.5%.
5. Frequency: Configurable for both 50Hz and 60Hz systems.
6. Phases: Available in both three-phase and single-phase configurations.
7. Connection Symbol: Options include Dyn11, Yyn0, or tailored to customer requirements.
8. Short-circuit Impedance: Conforms to standard impedance benchmarks for optimal performance.
9. Altitude Compatibility: Designed for altitudes not exceeding 1000m, with operational efficiency in ambient temperatures not surpassing 40°C.
Should the environmental conditions be beyond these parameters, we will adjust settings to align with industry standards.
Power capacity: From a robust 25 to an impressive 2500KVA range.
Voltage Levels: Offering a spectrum from 10KV to 36KV, ensuring flexible compatibility.
Voltage Level: Available in diverse gradations to meet various needs.
Type of Voltage Regulation: Easily adaptable for both off-circuit and on-load adjustments.
Tapping Range: Versatile range of ±5% with additional tap settings for precise control.
Frequency: Dual-frequency compatibility for both 50Hz and 60Hz applications.
Phases: Customizable in either three-phase or single-phase to suit different applications.
Connection Symbol: Configurable with Dyn11, Yyn0 options, or as per specific requests.
Short-circuit Impedance: Adheres to standard impedance for reliability.
Altitude and Temperature: Functionality guaranteed at altitudes below 1000m and temperatures under 40°C.
For environments that exceed these conditions, our engineers are equipped to tailor parameters in compliance with industry standards.
The Chaotai Power's innovative fully sealed oil-immersed power transformer is celebrated for its low loss, low noise, and remarkable efficiency, ensuring optimal energy savings and pollution reduction.
Setting itself apart, this state-of-the-art transformer negates the need for an oil conservator. Instead, it leverages the elasticity of the corrugated oil tank's sheet to adjust the oil volume. It remains insulated from the air, thus delaying oil degradation and insulation aging, boosting reliability, and negating the need for maintenance during routine operations.
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 innovation as a high-tech enterprise specializing in electrical integration. With a professional R&D, production, and service team boasting over 15 years of industry experience, we are dedicated to excellence.
Our diverse range of cutting-edge products includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These exceptional solutions are actively utilized across various sectors, including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, universities and research institutions, medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower, road traffic, and both commercial and residential areas.
Committed to technological innovation and embodying the philosophy of 'smart manufacturing,' we have made significant strides by attracting top-tier technical talents. Our focus on core competitiveness enables us to deliver unparalleled services to our valued customers. With relentless progress since our inception, we have transformed from humble beginnings to industry excellence. We prioritize innovation and adhere to modern business principles: survival through quality, development through reputation, and efficiency through management. Our commitment is to lead with technology, maintain standardized management, ensure exceptional quality, and achieve ultimate customer satisfaction. By enhancing our market competitiveness, we aim to serve China's power transmission and distribution sectors with even higher aspirations. Integrity forms our foundation, quality is our hallmark, service is our distinction, and customer satisfaction is our everlasting principle. Our pursuit of excellence, continuous innovation, and dedication to building a trustworthy brand form the core of our development goals. Your recognition fuels our journey forward. We extend our heartfelt gratitude to all our customers, both new and longstanding, for their unwavering support and enthusiasm. Senhang Technology eagerly anticipates a collaborative partnership as we strive towards a brighter future together.
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.