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 extraordinary transformer is renowned for its ultra-low energy loss, near-silent functionality, and unmatched efficiency. It stands as a paragon of eco-friendly innovation, dramatically reducing pollution and environmental impact. This cutting-edge model dispenses with the traditional oil conservator, thanks to its ingeniously designed corrugated oil tank that autonomously adjusts to oil volume variations, maintaining a hermetic seal that protects the transformer from air exposure. This avant-garde feature prevents oil deterioration, significantly prolongs the lifespan of insulation materials, and enhances operational reliability—all while eliminating the need for regular maintenance under normal conditions.
1. Power Capacity: Flexible range from 25-2500KVA, with adaptable options like 24KV, 30KV, 33KV, 35KV, 36KV, and bespoke configurations to meet specific customer needs. 2. Voltage Level: Versatile offerings in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Available in Off-circuit and On-load choices for comprehensive functionality.
4. Tapping Range: Offers options of ±5%, 2x2.5%, or ±4x2.5% to accommodate diverse power necessities.
5. Frequency: Provided in both 50Hz and 60Hz, to align with various regional specifications.
6. Phases: Available configurations in both Three-phase and single-phase to suit a wide array of applications.
7. Connection Symbol: Options include Dyn11, Yyn0, or custom configurations, tailored exquisitely to your specific requirements.
8. Short-circuit Impedance: Comes equipped with Standard Impedance, ensuring consistent, reliable performance.
9. Operational Conditions: Ingeniously designed to perform at altitudes up to 1000m and ambient temperatures below 40°C. Should conditions vary, we will meticulously adjust parameters as per industry standards.
All modifications will rigorously adhere to industry standards, guaranteeing optimal performance.
Power Capacity: Ranging from 25-2500KVA to fulfill a spectrum of energy demands.
Voltage Levels: Available in 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV for extensive versatility.
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit and On-load variants for versatile control.
Tapping Range: Offers selections like ±5%, ±2x2.5%, ±4x2.5% to meet precise requirements.
Frequency Options: Available in selections of 50Hz or 60Hz to adhere to local standards.
Phases: Configurable in both Three-phase and single-phase for a variety of applications.
Connection Symbol: Standard choices are Dyn11, Yyn0, with fully customizable configurations available for unique specifications.
Short-circuit Impedance: Features Standard Impedance for reliable and dependable operation.
Operational Conditions: Designed to perform optimally at altitudes not exceeding 1000m and temperatures below 40°C.
If operational conditions deviate, precise parameter adjustments will be made according to standard guidelines.
The fully sealed oil-immersed power transformer exemplifies Chaotai Power's innovative excellence, operating with impressively low energy loss, quiet efficiency, and superior performance. It is a powerful energy-saving device that significantly reduces pollution.
12854249
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 tall as a beacon of technological brilliance in the dynamic world of electrical integration. Celebrated as a cutting-edge, high-tech enterprise, we are empowered by a distinguished team specializing in research, development, production, and service, fortified by over 15 years of industry experience. Our unwavering quest for supreme excellence distinguishes us as trailblazers of innovation.
Our extensive and versatile product lineup is a testament to our commitment to innovation, showcasing state-of-the-art solutions such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These exceptional products are indispensable across a spectrum of industries, including energy, chemical sectors, metal smelting, power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, hydropower, and road traffic. Their applicability extends seamlessly into both commercial and residential realms. With our revolutionary solutions, we are proud to empower future advancements.
Driven by an unwavering philosophy of continuous technological advancement and 'smart manufacturing,' we commit wholeheartedly to nurturing a culture of excellence through the integration of elite technical talents. This strategic emphasis amplifies our core strengths, guaranteeing the delivery of unmatched service value to our clients. Our remarkable growth story is a testimony to our principles: advancing from inception to industry leadership through relentless dedication. Our business strategy is deeply rooted in innovation, with a steadfast commitment to quality as our survival foundation, market reputation as our growth trajectory, and management efficiency as our profitability catalyst. We are dedicated to leveraging 'technology as the guide, standardized management, superior quality, and customer satisfaction' as the pillars of our quality and talent management initiatives. Our strategic vision aims to elevate our market competitiveness, serving China's electric power and grid transmission and distribution sectors with aspirations reaching new pinnacles. Integrity, unrivaled quality, exceptional service, and customer satisfaction form the core of our values. We continually strive for excellence, consistently innovating to build a brand synonymous with trust. The appreciation from our valued customers fuels our ambition. We extend our heartfelt gratitude to our loyal customers, both new and loyal, 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.