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 exceptional transformer shines with its ultra-low energy loss, silent operation, and unmatched efficiency. A true symbol of energy conservation, it dramatically reduces pollution and lessens environmental impact. Unlike conventional oil-immersed models, this advanced design dispenses with the need for an oil conservator. The innovative corrugated oil tank adeptly self-regulates oil volume variations, maintaining an impeccable seal that shields the transformer from air exposure. This cutting-edge feature effectively staves off oil degradation, prolongs insulation material lifespan, and significantly enhances operational reliability—all without the necessity for routine maintenance under standard conditions.
1. Power Capacity: Ranging from 25-2500KVA, with adaptable options such as 24KV, 30KV, 33KV, 35KV, 36KV, and customizable configurations to meet specific customer demands. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Offers both Off-circuit and On-load options for flexible functionality.
4. Tapping Range: Delivers a selection of ±5%, 2x2.5%, or ±4x2.5% to accommodate various power needs.
5. Frequency: Offered in both 50Hz and 60Hz, aligning with distinct regional standards.
6. Phases: Available in Three-phase and single-phase configurations to suit diverse applications.
7. Connection Symbol: Choose from Dyn11, Yyn0, or fully tailor to your specifications effortlessly.
8. Short-circuit Impedance: Equipped with Standard Impedance for consistent performance.
9. Operational Conditions: Expertly crafted to perform at altitudes up to 1000m and ambient temperatures under 40°C. Deviations from these conditions will prompt necessary parameter adjustments per standard protocols.
All modifications will strictly adhere to industry standards, ensuring peak performance.
Power Capacity: Spans from 25-2500KVA to meet diverse energy requirements.
Voltage Levels: Available in 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, providing extensive adaptability.
Voltage Level Overview:
Type of Voltage Regulation: Available in both Off-circuit and On-load variants for adaptable management.
Tapping Range: Offers options like ±5%, ±2x2.5%, ±4x2.5% to fulfill specific requirements.
Frequency Options: Select from 50Hz or 60Hz to comply with local standards.
Phases: Available in both Three-phase and single-phase for diverse applications.
Connection Symbol: Standard options include Dyn11, Yyn0, with fully customizable configurations available.
Short-circuit Impedance: Features Standard Impedance for reliable operation.
Operational Conditions: Designed for optimal function at altitudes not exceeding 1000m and temperatures below 40°C.
Should operational conditions deviate, necessary parameter adjustments will be made following standard guidelines.
The fully sealed oil-immersed power transformer is a testament to Chaotai Power's innovative brilliance, boasting remarkably low energy loss, quiet operation, and outstanding efficiency. It is a powerful energy-saving solution that greatly 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. is an illustrious beacon in the dynamic field of electrical integration. We are recognized as a prestigious high-tech enterprise, fortified by a premier team with profound expertise in research, development, production, and service. For over 15 distinguished years, we have mastered the art of innovation, consistently pushing the boundaries of excellence and marking our place as harbingers of technological advancement.
Our extensive and versatile product portfolio is a testament to our dedication to cutting-edge innovation. We offer an array of state-of-the-art products such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and advanced substations. These exceptional products are essential to a diverse range of industries, including energy, chemical production, metal smelting, electric power, industrial manufacturing, academia, healthcare, municipal services, water management, hydropower engineering, and road traffic infrastructure. Our solutions are designed to enhance both commercial and residential applications, ensuring a future powered by revolutionary technology.
Embracing a philosophy centered on relentless technological advancement and 'smart manufacturing,' we are passionately committed to cultivating a culture of excellence. By integrating world-class technical talents, we enhance our core strengths, guaranteeing exceptional service value to our clients. Our impressive ascent from inception to industry leadership is an embodiment of our principles: a steadfast commitment to innovation and quality as the cornerstone of our success. Our business strategy is deeply anchored in the pillars of innovation, quality as our foundation for viability, market reputation as our growth trajectory, and managerial efficiency as the driving force for profitability. We are dedicated to employing 'technology as our compass, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management pursuits. Our strategic vision focuses on boosting market competitiveness, aiming to elevate China's electric power and grid transmission and distribution sectors to unprecedented heights. Integrity, unmatched quality, exceptional service, and customer satisfaction are at the core of our ethos. We continually pursue excellence, persistently innovating to establish a brand synonymous with trust and reliability. The appreciation from our customers inspires our ambition. With deep gratitude, we thank our loyal customers, both new and long-standing, and warmly invite you to join us in a collaborative journey towards a luminous future with Senhang Technology.
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.