Product Description



Oil Immersed Series Transformer:
Introducing the cutting-edge S11-M series fully sealed oil-immersed power transformer, expertly crafted by the renowned Zhejiang Chaotai Complete Equipment Co., Ltd. This extraordinary transformer is distinguished by its outstanding qualities of low energy consumption, whisper-quiet operation, and remarkable efficiency. Embrace this exemplary energy-saving solution that significantly minimizes environmental pollution and impact. Unlike its traditional counterparts, this innovative model transcends the need for an oil conservator. Its state-of-the-art design autonomously adapts to oil volume changes, thanks to the corrugated oil tank's flexible elasticity, ensuring a hermetic seal against air exposure. This ingenious feature prevents oil deterioration, decelerates insulation aging, and substantially amplifies operational reliability, all while eliminating the necessity for routine maintenance during standard operations.
1. Power Capacity: Ranging from 25KVA to 2500KVA, with voltage options of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable settings according to customer preferences. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load.
4. Tapping Range: Offering precision with ±5%, 2x2.5%, ±4x2.5% adjustments.
5. Frequency: Seamlessly adaptable to either 50Hz or 60Hz power systems.
6. Phases: Available in both three-phase and single-phase configurations.
7. Connection Symbol: Options include Dyn11, Yyn0, with customization available as needed.
8. Short-circuit Impedance: Designed with Standard Impedance for optimal function.
9. Operational Conditions: Suitable for altitudes up to 1000m and ambient temperatures below 40°C. Parameter adjustments will be conducted according to standard protocols if conditions exceed these limits.
All modifications will strictly comply with industry standards to ensure optimal performance.
Power Capacity: Span from 25KVA to 2500KVA, offering robust power solutions.
Voltage Levels: Covering a broad spectrum including 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level Overview:
Type of Voltage Regulation: Select between Off-circuit or On-load for tailored performance.
Tapping Range: Precision adjustments available at ±5%, ±2x2.5%, ±4x2.5%.
Frequency Options: Available in both 50Hz and 60Hz to suit various system requirements.
Phases: Configurable in either three-phase or single-phase setups.
Connection Symbol: Flexible options with Dyn11, Yyn0, customizable upon request for specific needs.
Short-circuit Impedance: Built with Standard Impedance to ensure seamless integration.
Operational Conditions: Designed for altitudes not exceeding 1000m and temperatures below 40°C.
Should environmental conditions vary, we will meticulously adjust parameters in alignment with standard guidelines to maintain performance.
Discover the fully sealed oil-immersed power transformer, a pinnacle of innovation by Chaotai Power. It excels with low energy consumption, silent operation, and high efficiency, offering an exceptional energy-saving solution that drastically curtails pollution.
Unlike conventional oil-immersed transformers, this advanced fully sealed design removes the need for an oil conservator. It adeptly manages oil volume changes with the corrugated oil tank sheet's elasticity, ensuring the transformer remains air-tight. This crucial feature not only prevents oil degradation and insulation aging but also significantly boosts reliability, eliminating the need for regular maintenance.
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 paragon of technological mastery in the field of electrical integration. Proudly distinguished as a high-tech enterprise, we are backed by a formidable R&D, production, and service team, enriched with over 15 years of precious industry expertise. Our unwavering commitment to excellence and innovation sets us apart as a vanguard in the industry.
Our expansive product range showcases pioneering innovations including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and state-of-the-art substations. These exceptional products serve a critical role across a diverse array of sectors such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic systems, extending to both commercial and residential domains. We take pride in illuminating the future with our transformative power solutions.
Rooted in a philosophy of relentless innovation and 'smart manufacturing,' we are devoted to cultivating a culture of excellence by integrating elite technical talents. This strategic focus enhances our core strengths, ensuring that we deliver unmatched service value to our clientele. Our growth journey is a testament to our ethos: evolving from inception to becoming industry leaders through steadfast dedication. Our business strategy remains fixed on innovation, with an unwavering commitment to quality as the cornerstone of our survival, market reputation as the pathway to growth, and management efficiency as the key to profitability. We pledge to uphold 'technology as our beacon, standardized management, superior quality, and client satisfaction' as foundational pillars of our quality and talent management initiatives. Our strategic vision is to amplify our competitive edge in the market, serving China's electric power and grid transmission and distribution sectors with aspirations that are faster, stronger, and higher. Integrity, peerless quality, exceptional service, and customer satisfaction embody our core values. We are committed to the relentless pursuit of excellence, ceaselessly innovating to establish a brand synonymous with trust and reliability. The recognition from our customers fuels our drive. We extend heartfelt gratitude to our loyal customers, both new and longstanding, and warmly invite you to join Senhang Technology on a shared journey towards a luminous tomorrow.
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.