Product Description



Oil Immersed Series Transformer:
Introducing the revolutionary S11-M series fully sealed oil-immersed power transformer, expertly engineered with cutting-edge precision by Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer stands out with its remarkably low energy loss, whisper-quiet performance, and unmatched efficiency. It serves as a beacon of energy conservation, dramatically reducing pollution and lessening environmental impacts. Unlike conventional oil-immersed transformers, this advanced model eliminates the need for an oil conservator. Ingeniously designed with a corrugated oil tank, it autonomously self-regulates and adjusts to oil volume changes, ensuring a perfectly sealed environment safeguarding the transformer from air exposure. This trailblazing feature effectively prevents oil degradation, substantially extends the lifespan of insulation materials, and markedly enhances operational reliability—all while necessitating no routine maintenance under standard conditions.
1. Power Capacity: Spanning from a versatile 25-2500KVA, with adaptable options including 24KV, 30KV, 33KV, 35KV, 36KV, and tailor-made configurations to meet specific customer needs. 2. Voltage Level: Offered in a range of 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, ensuring comprehensive adaptability. 3. Type of Voltage Regulation: Provides both Off-circuit and On-load options, delivering versatile functionality.
4. Tapping Range: Offers a selection of ±5%, 2x2.5%, or ±4x2.5% to accommodate diverse power requirements.
5. Frequency: Available in both 50Hz and 60Hz, catering to varying regional standards and requirements.
6. Phases: Available in both Three-phase and single-phase configurations, catering to a wide array of applications.
7. Connection Symbol: Choose from options such as Dyn11, Yyn0, or customize to your precise specifications with ease.
8. Short-circuit Impedance: Equipped with Standard Impedance, ensuring reliable and consistent performance.
9. Operational Conditions: Expertly engineered to perform optimally at altitudes up to 1000m and ambient temperatures below 40°C. Should these conditions vary, parameters will be adjusted as necessary in accordance with standard protocols.
All modifications will strictly adhere to industry standards, ensuring peak performance and reliability.
Power Capacity: Ranging from 25-2500KVA, adeptly meeting diverse energy demands.
Voltage Levels: Available in a comprehensive range of 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, allowing for extensive adaptability and customization.
Voltage Level Overview:
Type of Voltage Regulation: Offered in both Off-circuit and On-load variants, providing adaptable control and efficiency.
Tapping Range: Offers options like ±5%, ±2x2.5%, ±4x2.5% to precisely meet specific requirements.
Frequency Options: Choose from 50Hz or 60Hz, ensuring compliance with local standards and practices.
Phases: Available in both Three-phase and single-phase, supporting versatile and comprehensive applications.
Connection Symbol: Standard options include Dyn11, Yyn0, with fully customizable configurations readily available.
Short-circuit Impedance: Features Standard Impedance for dependable and consistent operation.
Operational Conditions: Designed to function optimally at altitudes not exceeding 1000m and temperatures below 40°C, ensuring robust performance.
Should operational conditions deviate, appropriate parameter adjustments will be made following standard guidelines to ensure continued optimal performance.
The fully sealed oil-immersed power transformer, a testament to Chaotai Power's innovative excellence, operates with incredibly low energy loss, silent performance, and superior efficiency. It is a powerful energy-saving solution that significantly 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

At the forefront of electrical integration, Zhejiang ChaoTai Complete Equipment Co., Ltd. illuminates the path of technological brilliance. Celebrated as a trailblazing high-tech enterprise, we are propelled by an exceptional team specializing in research, development, production, and service, fortified by an impressive 15-year legacy of industry expertise. Our fervent dedication to outstanding quality distinguishes us as avant-garde leaders in innovation.
Our vast array of products showcases state-of-the-art advancements, encompassing high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These remarkable innovations are vital across a plethora of industries including energy, chemical sectors, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their applicability spans both commercial and residential domains. We take immense pride in powering the future with our groundbreaking solutions.
Guided by an unwavering commitment to technological progression and 'smart manufacturing,' we passionately nurture a culture of excellence by integrating top-tier technical experts. This strategic emphasis amplifies our core strengths, ensuring the consistent provision of unparalleled service value to our clients. Our exceptional growth trajectory reflects our guiding principles: transitioning from inception to industry leadership through unwavering commitment. Our business strategy is deeply embedded in innovation, with a dedicated focus on quality as our survival cornerstone, market reputation as our growth avenue, and management efficiency as the profit-driven catalyst. 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 visionary mission is to enhance our market competitiveness, catering to China's electric power and grid transmission and distribution sectors with soaring aspirations. Integrity, unmatched quality, exceptional service, and customer delight are at the core of our values. We perpetually pursue excellence, continually innovating to build a brand synonymous with trust. Customer appreciation fuels our ambition. We profoundly thank our loyal customers, both new and enduring, and warmly welcome you to join us in a shared vision 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.