Product Description



Oil Immersed Series Transformer:
Introducing the revolutionary S11-M series fully sealed oil-immersed power transformer, expertly engineered with cutting-edge technology by Zhejiang Chaotai Complete Equipment Co., Ltd. This exceptional transformer is renowned for its remarkably low energy loss and ultra-quiet operation, setting a new standard for efficiency. It shines as a symbol of energy conservation, dramatically reducing pollution and shrinking environmental impact. Diverging from conventional oil-immersed transformers, this avant-garde model eradicates the necessity for an oil conservator. The ingeniously designed corrugated oil tank adeptly self-regulates and adapts to oil volume fluctuations, maintaining a flawlessly sealed environment that shields the transformer from air intrusion. This trailblazing feature effectively curtails oil degradation, vastly prolongs the life of insulation materials, and immensely enhances operational reliability—all while eliminating the need for regular maintenance under standard conditions.
1. Power Capacity: Ranging from 25-2500KVA, with adaptable options such as 24KV, 30KV, 33KV, 35KV, 36KV, and bespoke configurations to meet distinct client needs. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, ensuring a broad spectrum of choices. 3. Type of Voltage Regulation: Offers both Off-circuit and On-load solutions for versatile control.
4. Tapping Range: Presents a variety of choices like ±5%, 2x2.5%, or ±4x2.5% to fulfill diverse power requirements.
5. Frequency: Compatible with both 50Hz and 60Hz, accommodating varying regional standards.
6. Phases: Offered in both Three-phase and single-phase models to suit a range of applications.
7. Connection Symbol: Select from Dyn11, Yyn0, or tailor to your precise specifications effortlessly.
8. Short-circuit Impedance: Equipped with Standard Impedance to ensure consistent performance.
9. Operational Conditions: Skillfully engineered for altitudes up to 1000m and ambient temperatures below 40°C. Should there be variations in these conditions, we will adjust parameters as necessary following standard procedures.
All modifications will strictly adhere to industry standards, guaranteeing peak performance.
Power Capacity: Spans from 25-2500KVA to cater to varied energy needs.
Voltage Levels: Available in 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, offering wide-ranging adaptability.
Voltage Level Overview:
Type of Voltage Regulation: Offered in both Off-circuit and On-load variants for flexible control.
Tapping Range: Provides choices like ±5%, ±2x2.5%, ±4x2.5% to meet specific needs.
Frequency Options: Available in 50Hz or 60Hz to comply with local standards.
Phases: Offered in both Three-phase and single-phase for a multitude of applications.
Connection Symbol: Standard options include Dyn11, Yyn0, with fully customizable configurations at your disposal.
Short-circuit Impedance: Features Standard Impedance for dependable operation.
Operational Conditions: Engineered to operate optimally at altitudes up to 1000m and temperatures below 40°C.
Should operational conditions vary, suitable parameter adjustments will be implemented according to standard protocols.
The fully sealed oil-immersed power transformer, a testament to Chaotai Power's innovative mastery, excels with minimal energy loss, silent functionality, and exceptional efficiency. It is a formidable energy-conserving device that significantly curtails 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 a shining example of technological expertise in the dynamic field of electrical integration. Recognized as a high-tech enterprise, we boast an exceptional team specializing in research, development, production, and service, supported by over 15 years of deep industry knowledge. Our unwavering commitment to outstanding excellence distinguishes us as leaders in innovation.
Our extensive and varied product lineup showcases groundbreaking advancements, including high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These remarkable products are essential across a wide 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 infrastructures. They broaden their functionality to both commercial and residential applications. We confidently power the future with our transformative solutions.
Guided by a philosophy of persistent technological advancement and 'smart manufacturing,' we are dedicated to nurturing a culture of excellence by incorporating top-tier technical talent. This strategic approach enhances our core competencies, ensuring we consistently provide unmatched service value to our clients. Our remarkable growth journey illustrates our ethos: transitioning from inception to industry leadership through unwavering dedication. Our business strategy is anchored in innovation, with an unyielding commitment to quality as the backbone of our survival, market reputation as our pathway to growth, and management efficiency as the driver of profitability. We are committed to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and talent management efforts. Our strategic vision aims to elevate our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations that soar to new heights. Integrity, unparalleled quality, outstanding service, and customer satisfaction lie at the core of our values. We continuously strive for excellence, innovating tirelessly to establish a brand synonymous with trust. The appreciation from our customers fuels our ambition. We wholeheartedly express our deepest gratitude to our loyal customers, both new and longstanding, and warmly invite you to join us on a shared journey with Senhang Technology towards a brighter 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.