Product Description



Oil Immersed Series Transformer:
Behold the revolutionary S11-M series fully sealed oil-immersed power transformer, masterfully engineered by Zhejiang Chaotai Complete Equipment Co., Ltd. This extraordinary transformer transcends ordinary performance with its impressively low energy loss, ultra-quiet operation, and unmatched efficiency. It epitomizes sustainability by drastically reducing pollution and minimizing ecological impact. Diverging from conventional transformers, this advanced model eliminates the need for an oil conservator. The ingeniously designed corrugated oil tank autonomously manages oil volume fluctuations, ensuring an impeccably sealed environment that shields the transformer from air intrusion. This cutting-edge feature prevents oil deterioration, significantly prolongs insulation material longevity, and remarkably enhances operational dependability—all while necessitating no routine maintenance under standard operating conditions.
1. Power Capacity: Ranges from 25-2500KVA, offering adaptable options such as 24KV, 30KV, 33KV, 35KV, 36KV, along with tailor-made configurations to meet unique customer specifications. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, catering to a spectrum of power needs. 3. Type of Voltage Regulation: Provides both Off-circuit and On-load options, ensuring versatile functionality for various applications.
4. Tapping Range: Offers a versatile selection of ±5%, 2x2.5%, or ±4x2.5%, accommodating a wide range of power requirements.
5. Frequency: Available in both 50Hz and 60Hz frequencies, adeptly meeting diverse regional standards.
6. Phases: Available in both Three-phase and single-phase configurations, suiting an array of applications.
7. Connection Symbol: Choose from Dyn11, Yyn0, or opt for a custom configuration tailored to your exact needs with ease and precision.
8. Short-circuit Impedance: Designed with Standard Impedance, ensuring consistent and reliable performance.
9. Operational Conditions: Precisely engineered to operate efficiently at altitudes up to 1000m with ambient temperatures below 40°C. Should operating conditions deviate, we adjust parameters in strict compliance with standard protocols.
Modifications will adhere rigorously to industry standards, guaranteeing premium performance and resilience.
Power Capacity: Spans from 25-2500KVA, effectively catering to a broad spectrum of energy demands.
Voltage Levels: Extensively adaptable, available in 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV to suit various requirements.
Voltage Level Overview:
Type of Voltage Regulation: Offered in both Off-circuit and On-load variants, providing adaptable and precise control options.
Tapping Range: Provides flexible options like ±5%, ±2x2.5%, ±4x2.5% to match specific power needs.
Frequency Options: Available in 50Hz or 60Hz, ensuring compliance with local standards and requirements.
Phases: Offered in both Three-phase and single-phase configurations, accommodating a variety of application needs.
Connection Symbol: Standard options include Dyn11, Yyn0, with fully customizable configurations available to meet precise specifications.
Short-circuit Impedance: Features Standard Impedance, guaranteeing dependable and stable operation.
Operational Conditions: Expertly crafted to perform optimally at altitudes not exceeding 1000m and temperatures below 40°C, with flexibility for adjustments if conditions vary.
Should operational conditions deviate, precise parameter adjustments will be executed in alignment with established guidelines, ensuring uninterrupted performance.
This fully sealed oil-immersed power transformer, a testament to Chaotai Power's innovative excellence, delivers incredibly low energy loss, silent operations, and superior efficiency. It is a powerful energy-saving device that substantially reduces pollution, embodying the forefront of sustainable technology.
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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. proudly stands at the forefront of technological innovation within the dynamic realm of electrical integration. Celebrated as a high-tech enterprise, we are distinguished by a premier team of experts in research, development, production, and service, fortified by an impressive 15-plus years of industry proficiency. Our unwavering quest for extraordinary excellence distinguishes us as leaders and trailblazers in innovation.
Our extensive and diverse product portfolio showcases groundbreaking innovations, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These remarkable products are essential across numerous sectors such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their versatile applications extend to both commercial and residential arenas. We proudly shape the future with our revolutionary solutions, setting benchmarks for industry standards.
Fueled by a philosophy of relentless technological advancement and 'smart manufacturing,' we are passionately committed to nurturing a culture of excellence by integrating elite technical talents. This strategic emphasis enhances our core strengths, ensuring we consistently deliver unmatched service value to our esteemed clients. Our remarkable growth narrative is a tribute to our ethos: evolving from inception to industry leadership through unwavering dedication. Our business strategy is deeply anchored in innovation, with an unwavering commitment to quality as the cornerstone of our existence, market reputation as the avenue for expansion, and management efficiency as the driving force for profitability. We are resolute in leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the foundations of our quality and talent management pursuits. Our strategic vision aims to elevate our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations reaching new pinnacles. Integrity, unmatched quality, exceptional service, and customer satisfaction are core to our values. We persistently strive for distinction, continually innovating to build a brand renowned for trust. The appreciation from our customers fuels our ambition. We express our heartfelt gratitude to our loyal customers, both new and longstanding, and cordially invite you to embark with Senhang Technology on a shared journey towards a brighter tomorrow.
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.