Product Description



Oil Immersed Series Transformer:
Introducing the groundbreaking S11-M series, a marvel in the realm of power technology, crafted to perfection by Zhejiang Chaotai Complete Equipment Co., Ltd. This cutting-edge, fully sealed oil-immersed power transformer stands at the forefront with its ultra-low energy loss, whisper-quiet operation, and unmatched efficiency. It's an icon of energy conservation, dramatically lowering pollution levels and minimizing environmental impact. Unlike its traditional counterparts, this advanced model ingeniously dispenses with the oil conservator. Its smartly designed corrugated oil tank self-adjusts to oil volume changes, maintaining a flawless seal that shields the transformer from air contact. This avant-garde feature prevents oil degradation, significantly prolongs insulation life, and elevates operational reliability—all without the need for routine maintenance under standard operating conditions.
1. Power Capacity: This versatile transformer offers a wide range from 25-2500KVA, with customizable configurations including 24KV, 30KV, 33KV, 35KV, and 36KV, tailored to meet specific customer needs. 2. Voltage Level: Available in various levels such as 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV, providing extensive flexibility. 3. Type of Voltage Regulation: Experience versatile functionality with both Off-circuit and On-load voltage regulation options.
4. Tapping Range: Tailor your power needs with options like ±5%, 2x2.5%, or ±4x2.5%.
5. Frequency: Choose between 50Hz and 60Hz to suit diverse regional requirements.
6. Phases: Offered in both Three-phase and single-phase configurations, catering to a variety of applications.
7. Connection Symbol: Select from standard symbols such as Dyn11, Yyn0, or customize according to your precise needs effortlessly.
8. Short-circuit Impedance: Designed with Standard Impedance for consistently reliable performance.
9. Operational Conditions: Expertly engineered to perform optimally at altitudes up to 1000m and ambient temperatures below 40°C. Adjustments will be made as needed, adhering to standard protocols, should these conditions change.
All modifications adhere strictly to industry standards, ensuring peak performance and reliability.
Power Capacity: Designed to address diverse energy demands with a range of 25-2500KVA.
Voltage Levels: A broad spectrum from 10KV to 36KV, including 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, and 35KV, ensures adaptability across applications.
Voltage Level Overview:
Type of Voltage Regulation: Offers flexible control with both Off-circuit and On-load variants.
Tapping Range: Customizable options such as ±5%, ±2x2.5%, ±4x2.5% are available to fit specific needs.
Frequency Options: Available in 50Hz or 60Hz to meet varying local standards.
Phases: Available in both Three-phase and single-phase for broad application flexibility.
Connection Symbol: Choose from standard options like Dyn11, Yyn0, or customize configurations to meet your exact specifications.
Short-circuit Impedance: Incorporates Standard Impedance to ensure dependable operation.
Operational Conditions: Optimized for altitudes up to 1000m and temperatures under 40°C, with adjustments made as necessary following standard guidelines to maintain optimal functionality.
Adjustments to operational conditions will be executed in line with established standards to ensure top-tier performance.
As a testament to Chaotai Power's innovative excellence, the fully sealed oil-immersed power transformer excels with minimal energy loss, silent operation, and superior efficiency. It's a powerful energy-saving solution that dramatically reduces pollution.
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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. shines as a luminary of cutting-edge technology in the dynamic realm of electrical integration. Recognized as a prestigious high-tech enterprise, we boast an exceptional team proficient in research, development, production, and service, fortified by over 15 years of rich industry expertise. Our unwavering commitment to unrivaled excellence distinguishes us as trailblazers of innovation.
Our expansive portfolio is a testament to our pioneering spirit, showcasing state-of-the-art innovations such as high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, sophisticated gas-insulated switchgear, and robust substations. These exemplary products are crucial across a vast array of industries including energy, chemical processing, metal smelting, electric power grids, industrial manufacturing, education, healthcare, municipal commerce, water management, hydropower, and transportation infrastructure. They seamlessly extend their functionality to both commercial and residential domains. We proudly lead the charge in shaping the future with our groundbreaking solutions.
Propelled by our philosophy of incessant technological advancement and 'smart manufacturing,' we are passionately dedicated to nurturing a culture of excellence by integrating premier technical expertise. This strategic emphasis enhances our core strengths, ensuring we consistently deliver unparalleled service excellence to our clients. Our remarkable growth narrative epitomizes our ethos: evolving from our origin to industry prominence through unwavering dedication. Our business strategy is anchored in innovation, with an unwavering allegiance to quality as our foundation for survival, market reputation as our trajectory for expansion, and management efficiency as the catalyst for profitability. We are devoted to leveraging 'technology as the compass, standardized management, superior quality, and unwavering customer satisfaction' as the cornerstones of our quality and talent management efforts. Our strategic vision aims to bolster our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that soar to unprecedented heights. Integrity, unmatched quality, exceptional service, and customer satisfaction are the cornerstones of our values. We relentlessly pursue excellence, continuously innovating to forge a brand synonymous with trust. The recognition and gratitude from our customers fuel our ambition. We express our heartfelt thanks to our loyal customers, both new and longstanding, and cordially invite you to join us on a shared journey with Senhang Technology towards a luminous 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.