Product Description



Oil Immersed Series Transformer:
Introducing the revolutionary S11-M series fully sealed oil-immersed power transformer, meticulously engineered by Zhejiang Chaotai Complete Equipment Co., Ltd. This exemplary transformer is a marvel of modern technology, offering incredibly low energy loss, silent operation, and unmatched efficiency. It shines as a symbol of energy conservation, significantly reducing pollution and minimizing environmental impact. Departing from traditional designs, this advanced model eliminates the necessity for an oil conservator. The innovative corrugated oil tank design ingeniously self-regulates oil volume changes, maintaining a flawless seal that protects the transformer from air exposure. This groundbreaking feature effectively prevents oil degradation, greatly extending the lifespan of insulation materials and substantially enhancing operational reliability. Moreover, it requires no routine maintenance under standard conditions, setting a new benchmark for transformer performance.
1. Power Capacity: Offering a wide range from 25-2500KVA, with adaptable options like 24KV, 30KV, 33KV, 35KV, 36KV, and customizable configurations tailored to meet specific customer needs. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, providing extensive versatility. 3. Type of Voltage Regulation: Features both Off-circuit and On-load options for flexible functionality.
4. Tapping Range: Presents a variety of choices including ±5%, 2x2.5%, or ±4x2.5% to cater to diverse power requirements.
5. Frequency: Offered in both 50Hz and 60Hz, accommodating different regional demands.
6. Phases: Available in both Three-phase and single-phase configurations, suitable for various applications.
7. Connection Symbol: Select from options such as Dyn11, Yyn0, or customize to meet your precise specifications effortlessly.
8. Short-circuit Impedance: Comes equipped with Standard Impedance for assured reliability and performance.
9. Operational Conditions: Expertly crafted for peak performance at altitudes up to 1000m and ambient temperatures under 40°C. Should conditions vary, we will adjust parameters as per standard protocols to ensure consistent operation.
All adjustments will rigorously adhere to industry standards, guaranteeing peak performance and reliability.
Power Capacity: Spans from 25-2500KVA, matching diverse energy requirements with precision.
Voltage Levels: Offered in a comprehensive range of 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, allowing for extensive adaptability to your power needs.
Voltage Level Overview:
Type of Voltage Regulation: Available in both Off-circuit and On-load variants, providing adaptable control for varied usage scenarios.
Tapping Range: Offers versatile options such as ±5%, ±2x2.5%, ±4x2.5% to meet specific operational requirements.
Frequency Options: Choose between 50Hz or 60Hz to align with local standards and preferences.
Phases: Available in both Three-phase and single-phase, ensuring versatility for a broad spectrum of applications.
Connection Symbol: Standard choices include Dyn11, Yyn0, with options for fully customizable configurations to suit your exact needs.
Short-circuit Impedance: Features robust Standard Impedance for dependable and consistent operation.
Operational Conditions: Specifically designed to perform optimally at altitudes not exceeding 1000m and temperatures below 40°C, ensuring reliability.
Should operational conditions deviate, precise parameter adjustments will be implemented following standard guidelines to maintain efficiency.
The fully sealed oil-immersed power transformer, a testament to Chaotai Power's cutting-edge innovation, excels with remarkably low energy loss, quiet operation, and outstanding efficiency. It is an exceptional energy-saving device that dramatically reduces pollution, setting new standards in transformer 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. emerges as a beacon of innovation and technological brilliance in the dynamic field of electrical integration. Celebrated as a high-tech enterprise, we boast an exceptional team excelling in research, development, production, and service, bolstered by over 15 years of profound industry expertise. Our unwavering quest for outstanding excellence sets us apart as trailblazers of innovation and leaders in the field.
Our extensive and diverse product array showcases state-of-the-art innovations, including high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, gas-insulated switchgear, and robust substations. These exemplary products are indispensable 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 utility extends to both commercial and residential domains. We proudly lead the charge into the future with our groundbreaking solutions that empower industries and communities alike.
Guided by a philosophy of relentless technological advancement and 'smart manufacturing,' we are passionately devoted to nurturing a culture of excellence by integrating the finest technical talents. This strategic focus amplifies our core capabilities, ensuring we consistently deliver unmatched service value to our clients. Our remarkable growth journey stands as a testament to our ethos: evolving from inception to industry leadership through unwavering dedication. Our business strategy is firmly anchored in innovation, with quality as the cornerstone of our survival, market reputation as the pathway to growth, and management efficiency as the catalyst for profitability. We are committed to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision aims to elevate our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations reaching new heights. Integrity, unmatched quality, exceptional service, and customer satisfaction are the core of our values. We strive for excellence, ceaselessly innovating to establish a brand synonymous with trust. The appreciation from our valued customers fuels our ambition. We express our heartfelt gratitude to our loyal customers, both new and longstanding, and warmly invite you to join us in a shared journey with Senhang Technology towards a brighter, more prosperous 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.