Product Description



Oil Immersed Series Transformer:
Introducing the game-changing S11-M series fully sealed oil-immersed power transformer, crafted with precision by Zhejiang Chaotai Complete Equipment Co., Ltd. This outstanding transformer sets benchmarks with its exceptional low energy loss, whisper-quiet performance, and superior efficiency. Embodying energy conservation, it notably reduces environmental pollution and lessens ecological impact. Diverging from traditional oil-immersed transformers, this advanced model eliminates the need for an oil conservator. Its ingeniously crafted corrugated oil tank self-regulates to maintain oil volume fluctuations, ensuring an impeccably sealed environment that shields the transformer from air contact. This smart feature prevents oil degradation, significantly extends the lifespan of insulation materials, and substantially boosts operational reliability—all while requiring no routine maintenance under regular conditions.
1. Power Capacity: Spanning 25-2500KVA, with adaptable options like 24KV, 30KV, 33KV, 35KV, 36KV, along with bespoke configurations tailored to meet exclusive customer needs. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Features Off-circuit and On-load options for versatile functionality.
4. Tapping Range: Offers a variety of selections such as ±5%, 2x2.5%, or ±4x2.5% to address diverse power demands.
5. Frequency: Available in both 50Hz and 60Hz to guarantee alignment with regional standards.
6. Phases: Available in Three-phase and single-phase configurations to accommodate diverse applications.
7. Connection Symbol: Opt for standard configurations like Dyn11, Yyn0, or customize to fit your precise specifications effortlessly.
8. Short-circuit Impedance: Designed with Standard Impedance, ensuring consistent and trustworthy performance.
9. Operational Conditions: Expertly constructed for altitudes up to 1000m and ambient temperatures below 40°C. If these parameters vary, adjustments adhere to standard protocols.
All modifications strictly comply with industry standards, ensuring peak performance and reliability.
Power Capacity: Offers a dynamic range from 25-2500KVA to satisfy diverse energy requirements.
Voltage Levels: Encompasses 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, offering vast adaptability.
Voltage Level Overview:
Type of Voltage Regulation: Includes both Off-circuit and On-load variants for flexible control solutions.
Tapping Range: Provides configurations like ±5%, ±2x2.5%, ±4x2.5% to suit specific needs.
Frequency Options: Choose either 50Hz or 60Hz to match local standards with ease.
Phases: Available in both Three-phase and single-phase to address multiple applications.
Connection Symbol: Standard choices include Dyn11, Yyn0, with fully customizable configurations available.
Short-circuit Impedance: Features Standard Impedance for dependable and consistent operation.
Operational Conditions: Engineered for optimum performance at altitudes up to 1000m and temperatures below 40°C.
If operational conditions deviate, appropriate parameter adjustments will be executed following standard guidelines.
The fully sealed oil-immersed power transformer, a hallmark of Chaotai Power's pioneering innovation, excels with impressively low energy loss, silent operation, and premier efficiency. It serves as a robust energy-saving solution that profoundly cuts down on 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. stands as a beacon of technological brilliance in the ever-evolving realm of electrical integration. Esteemed as a high-tech enterprise, our exceptional team brings over 15 years of unmatched industry prowess, positioning us as vanguards in research, development, production, and service. Our steadfast commitment to pioneering innovation distinguishes us as forerunners, perpetually advancing the frontiers of excellence.
Our extensive product range is a testament to our pioneering advancements. We provide high-voltage solid-state soft starters, sophisticated capacitor cabinets, a diverse selection of high and low voltage switchgear, cutting-edge gas-insulated switchgear, and innovative substations. These remarkable offerings are indispensable across a multitude of sectors, including energy, chemical industries, metal smelting, electric grids, industrial production, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Catering to both commercial and residential needs, we empower the future with our groundbreaking solutions.
Our ethos of 'smart manufacturing' and relentless pursuit of technological advancement fuels a culture of excellence. By integrating top-tier technical expertise, we elevate our core capabilities, consistently delivering exceptional value to our clients. Our extraordinary growth journey mirrors our ethos of transforming beginnings into industry dominance through unwavering dedication. Innovation is the cornerstone of our strategy, with quality as the foundation of our longevity, market reputation as our growth trajectory, and management efficiency as the driver of profitability. Our dedication to 'technology as the guide, standardized management, superior quality, and customer satisfaction' underpins our quality and talent management pillars. We strive to enhance market competitiveness, serving China's electric power and grid sectors with visionary ambition. Integrity, unparalleled quality, exceptional service, and customer satisfaction engrain the essence of our values. We pursue excellence, persistently innovating to construct a brand of reliability. Our customers' appreciation ignites our aspirations, and we sincerely thank our loyal patrons, both new and steadfast. Embark with us and Senhang Technology on a collective journey towards an illuminated 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.