Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series fully sealed oil-immersed power transformer, meticulously crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This extraordinary transformer is distinguished by its outstanding features including negligible energy loss, ultra-quiet operation, and unmatched efficiency. It stands as a paragon of energy conservation, greatly mitigating pollution and environmental repercussions. Unlike conventional oil-immersed transformers, this state-of-the-art model obviates the necessity for an oil conservator. Its intelligent design adeptly compensates for oil volume variations through the elasticity of the corrugated oil tank, efficiently sealing the transformer from air contact. This groundbreaking feature not only prevents oil degradation and slows insulation aging but significantly enhances reliability and eliminates the need for regular maintenance under standard operating conditions.
1. Power Capacity: Ranging from 25KVA to an impressive 2500KVA, available in 24KV, 30KV, 33KV, 35KV, 36KV, with customization options tailored to customer specifications. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load for tailored control.
4. Tapping Range: Options include ±5%, ±2x2.5%, ±4x2.5% for versatile adaptability.
5. Frequency: Operates seamlessly at either 50Hz or 60Hz.
6. Phases: Available in both Three-phase or Single-phase configurations.
7. Connection Symbol: Options include Dyn11, Yyn0, with customization available to suit specific needs.
8. Short-circuit Impedance: Featuring Standard Impedance for optimal performance.
9. Operational Conditions: Designed for altitudes not exceeding 1000m and ambient temperatures below 40°C. Should these conditions vary, parameter adjustments will be made according to standard protocols to ensure peak efficiency.
All adjustments will rigorously adhere to industry standards to maintain the highest quality and operational excellence.
Power Capacity: Ranges from 25KVA to a robust 2500KVA ensuring versatile power solutions.
Voltage Levels: Available in 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, offering a wide spectrum for various applications.
Voltage Level Overview:
Type of Voltage Regulation: Choose between Off-circuit or On-load, providing flexibility in application.
Tapping Range: Variations include ±5%, ±2x2.5%, ±4x2.5% for enhanced adaptability.
Frequency Options: Crafted to operate smoothly at 50Hz or 60Hz, catering to global standards.
Phases: Offered in both Three-phase or Single-phase to meet diverse operational needs.
Connection Symbol: Available in Dyn11, Yyn0, with custom configurations available upon request.
Short-circuit Impedance: Maintains Standard Impedance to ensure optimal safety and performance.
Operational Conditions: Optimized for altitudes not exceeding 1000m and ambient temperature not exceeding 40°C, ensuring reliability and durability.
Should operational conditions deviate from standard, we are committed to making precise parameter adjustments in strict adherence to industry guidelines, guaranteeing performance excellence.
The fully sealed oil-immersed power transformer, an epitome of innovation from Chaotai Power, features minimal energy loss, tranquil operation, and exceptional efficiency. It's a superior energy-saving solution that dramatically diminishes pollution and environmental harm.
Distinct from traditional oil-immersed transformers, this fully sealed design eliminates the need for an oil conservator. It adeptly manages oil volume variations through the elasticity of the corrugated oil tank sheet, ensuring the transformer remains isolated from air. This critical feature not only prevents oil degradation and insulation aging but also enhances reliability, eliminating the necessity for routine 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. is a shining star in the landscape of electrical integration, renowned for its technological excellence. As a premier high-tech enterprise, we proudly feature a committed team dedicated to R&D, production, and service, enriched by more than 15 years of irreplaceable industry wisdom. Our unyielding quest for superiority distinguishes us as an innovator par excellence.
Our expansive array of products stands at the forefront of innovation, including state-of-the-art high-voltage solid-state soft starters, capacitor cabinets, advanced high and low voltage switchgear, sophisticated gas-insulated switchgear, and cutting-edge substations. These essential products are integral across a vast spectrum of sectors such as energy, chemical industries, metal smelting, power grids, industrial manufacturing, education, healthcare, municipal commerce, water resource management, hydropower, and road traffic, seamlessly serving both commercial and residential domains. Proudly, we are trailblazers powering the future with our revolutionary solutions.
Rooted in a philosophy of unwavering technological advancement and 'smart manufacturing,' we are devoted to cultivating a culture of distinction by integrating top-tier technical talent. This strategic focus is designed to enhance our core strengths, assuring delivery of unmatched service value to our clients. Our growth narrative is an ode to our principle: transitioning from inception to industry supremacy through unwavering commitment. Our business trajectory is deeply rooted in innovation, with a steadfast pledge to quality as the bedrock of endurance, a sterling reputation as the roadmap to development, and efficient management as the gateway to prosperity. We commit to leveraging 'technology as the compass, standardized management, superior quality, and customer fulfillment' as the pillars of our quality and talent strategizing. Our visionary goal is to enhance our market competitiveness, diligently serving China's electric power and grid transmission and distribution domains with aspirations that soar faster, stronger, and higher. Core values of integrity, unmatched quality, extraordinary service, and ultimate customer satisfaction are the foundation of our ethos. Our relentless pursuit of excellence and perpetual innovation aims to craft a brand synonymous with trust. The recognition from our esteemed customers propels our aspirations. We offer sincere thanks to our loyal clientele, both new and longstanding, and cordially invite you to embark on a shared journey with Senhang Technology towards a luminous 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.