Product Description



Oil Immersed Series Transformer:
Introducing the revolutionary S11-M series fully sealed oil-immersed power transformer, a masterpiece of precision engineering and cutting-edge technology by Zhejiang Chaotai Complete Equipment Co., Ltd. This outstanding transformer is renowned for its minimal energy loss, silent operation, and exceptional efficiency. It is a paradigm of energy conservation, dramatically lowering pollution and shrinking environmental impacts. Unlike conventional oil-immersed transformers, this avant-garde model does away with the oil conservator. The ingeniously designed corrugated oil tank autonomously adapts to oil volume variations, ensuring a flawlessly sealed environment that shields the transformer from air exposure. This innovative feature effectively mitigates oil degradation, significantly prolongs the lifespan of insulation materials, and drastically enhances operational reliability—all while eliminating the need for routine maintenance under standard conditions.
1. Power Capacity: Offering a spectrum from 25-2500KVA, with versatile options such as 24KV, 30KV, 33KV, 35KV, 36KV, and customizable configurations to align with specific customer requirements. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Providing both Off-circuit and On-load options for comprehensive functionality.
4. Tapping Range: Features options of ±5%, 2x2.5%, or ±4x2.5% to accommodate diverse power necessities.
5. Frequency: Available in both 50Hz and 60Hz, catering to varied regional needs.
6. Phases: Available in both Three-phase and single-phase configurations to suit a wide array of applications.
7. Connection Symbol: Select from Dyn11, Yyn0, or customize to meet your exact requirements effortlessly.
8. Short-circuit Impedance: Equipped with Standard Impedance for consistent and reliable performance.
9. Operational Conditions: Expertly engineered for altitudes up to 1000m and ambient temperatures under 40°C. Should these conditions differ, parameters will be adjusted as required, adhering to standard protocols.
All modifications will adhere strictly to industry standards, ensuring peak performance and reliability.
Power Capacity: Offers a range from 25-2500KVA to meet a variety of energy demands.
Voltage Levels: Available in 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, facilitating extensive adaptability.
Voltage Level Overview:
Type of Voltage Regulation: Available in both Off-circuit and On-load variants for adaptable and precise control.
Tapping Range: Provides a selection like ±5%, ±2x2.5%, ±4x2.5% to meet specific requirements.
Frequency Options: Choose between 50Hz or 60Hz to satisfy local standards and requirements.
Phases: Available in both Three-phase and single-phase for flexible application across various domains.
Connection Symbol: Standard options include Dyn11, Yyn0, with fully customizable configurations to suit individual needs.
Short-circuit Impedance: Part of its dependable design, featuring Standard Impedance for consistent operation.
Operational Conditions: Engineered to operate optimally at altitudes below 1000m and temperatures under 40°C.
Should operational conditions deviate from the norm, necessary parameter adjustments will be executed following standard guidelines.
The fully sealed oil-immersed power transformer, a hallmark of Chaotai Power's innovative capabilities, excels with exceptionally low energy loss, whisper-quiet operation, and superior efficiency. It stands as a robust energy-saving solution that significantly cuts down on pollution.
01a6554e
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 luminary in the dynamic field of electrical integration, a vanguard of innovation and technological prowess. Celebrated as a high-tech enterprise, our formidable team excels in research, development, production, and service, wielding over 15 years of rich industry experience. Our unwavering pursuit of unrivaled excellence establishes us as true trailblazers in the realm of technological advancements.
Our diverse product catalog is a testament to our innovative spirit, offering high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations—products that are pivotal across diverse sectors like energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their versatile nature extends to both commercial and residential applications. As we steer into the future, we empower it with our groundbreaking solutions, redefining possibilities.
Guided by a relentless drive for technological advancement and 'smart manufacturing,' we are steadfastly committed to nurturing a culture of excellence by integrating top-tier technical talent. This strategic emphasis magnifies our core competencies, ensuring we consistently deliver unmatched service value. Our remarkable growth story is a testament to our ethos: evolving from our beginnings to become industry leaders through unwavering dedication. Our business strategy is rooted in innovation, with an unyielding commitment to quality as the cornerstone of our existence, our reputation as the pathway to growth, and management efficiency as the catalyst for profitability. We are devoted to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management efforts. Our strategic vision is to enhance our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations reaching new heights. Integrity, superior quality, exceptional service, and customer satisfaction are the core of our values. We relentlessly pursue excellence, continuously innovating to build a brand synonymous with trust. The appreciation from our customers fuels our ambition. We sincerely extend our deepest gratitude to our loyal customers, both new and long-standing, and warmly invite you to join us on a shared journey with Senhang Technology towards a radiant 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.