Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series, a fully sealed oil immersed power transformer by Chaotai Power. Engineered with precision, it offers exceptional attributes such as low loss, reduced noise, and heightened efficiency, promising superior energy conservation and minimized environmental impact. This innovative transformer distinguishes itself from conventional models by eliminating the oil conservator. The adaptability of the corrugated oil tank's sheets seamlessly adjusts the oil volume, ensuring the transformer remains hermetically sealed and isolated from air. This design innovation protects against oil degradation and insulation aging, significantly enhancing operational reliability while eliminating the need for regular maintenance.
1. Power Capacity: From 25KVA to an impressive 2500KVA, covering voltage requirements of 24KV, 30KV, 33KV, 35KV, and 36KV, as well as customizable options to meet specific customer needs. 2. Voltage Level: Flexibility with multiple levels including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation for tailored performance.
4. Tapping Range: Offers versatility with ±5%, ±2x2.5%, and ±4x2.5% options, adapting effortlessly to varied demands.
5. Frequency: Compatible with both 50Hz and 60Hz frequencies, broadening its applicability.
6. Phases: Available in both three-phase and single-phase configurations to suit diverse operational needs.
7. Connection Symbol: Versatile configurations available in Dyn11 or Yyn0, with custom options upon request.
8. Short-circuit Impedance: Crafted with a standard impedance for reliable performance and safety.
Altitude is not surpassing 1000 meters, and the ambient temperature is to remain within 40°C. Should these conditions not be met, we offer parameter adjustments to ensure optimal performance.
All adjustments are in strict accordance with standardized protocols.
Power Capacity: Spanning a range of 25 to 2500 KVA for diverse applications.
Voltage Level: Supporting an array of specifications including 10KV, 20KV, 22KV, 30KV, 33KV, 35KV, and up to 36KV.
Voltage Level:
Type of Voltage Regulation: Choose between precise Off-circuit or dynamic On-load regulation.
Tapping Range: Adaptable with settings of ±5%, ±2x2.5%, and ±4x2.5% to meet various operational criteria.
Frequency: Designed to operate seamlessly with both 50Hz and 60Hz systems.
Phases: Available in three-phase and single-phase to accommodate different operational environments.
Connection Symbol: Options include Dyn11 and Yyn0, with customization available as per client requests.
Short-circuit Impedance: Engineered with standard impedance to ensure robust and secure operation.
Altitude does not exceed 1000 meters, and the ambient temperature should not exceed 40°C.
Should these conditions not be suitable, our team can modify parameters to align with industry standards.
Chaotai Power's fully sealed oil immersed transformer excels in delivering low loss, reduced noise, and high efficiency. This cutting-edge technology ensures substantial energy savings and decreased pollution.
In contrast to traditional oil immersed transformers, our fully sealed model dispenses with the oil conservator. It utilizes the elasticity of the corrugated tank sheet to autonomously adjust oil volume, effectively isolating it from air exposure. This innovation helps prevent oil decay and insulation aging, boosting operational reliability and eliminating the need 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 pioneering high-tech enterprise dedicated to advancing the field of electrical integration. With a team of seasoned experts in research, development, production, and service, boasting over 15 years of industry-rich experience, we lead the charge in innovation and excellence.
Our distinguished product range includes cutting-edge high-voltage solid-state soft starters, sophisticated capacitor cabinets, versatile high and low voltage switchgear, state-of-the-art gas-insulated switchgear, and robust substations. These solutions are at the forefront of technological advancement and are extensively utilized across a multitude of sectors including energy and chemical industries, metal smelting, expansive electric power grids, industrial manufacturing processes, esteemed universities and research institutions, progressive medical and pharmaceutical sectors, dynamic municipal commerce, comprehensive water conservancy and hydropower projects, road traffic management, and thriving commercial and residential domains.
Embracing the spirit of technological innovation, Zhejiang ChaoTai Complete Equipment Co., Ltd. is committed to the philosophy of 'smart manufacturing.' We proactively recruit top-tier technical talents to significantly enhance our core competencies, ensuring we deliver unmatched value and service excellence. Since our inception, we've embarked on a remarkable journey of growth – from inception to outstanding mastery. Our unwavering dedication to innovation guides us along a modern business trajectory focused on quality-driven survival, market-oriented expansion, reputation-based development, and efficiency through meticulous management. Guided by the principles of 'technology as the compass, standardized management, superior quality, and customer satisfaction,' we relentlessly pursue market competitiveness in the electric power and grid transmission fields of China, with ambitions of achieving new heights in speed, strength, and goals. Integrity is our cornerstone, quality is our hallmark, and customer service is our highest priority. Achieving customer satisfaction is our perpetual mission. We remain committed to pursuing excellence, fostering continuous innovation, and building an unwaveringly trustworthy brand. Your recognition fuels our progress, and we extend heartfelt gratitude to all our esteemed clients, both new and longstanding, for their unwavering support and partnership. Senhang Technology eagerly anticipates collaborating with you to forge a prosperous future together.
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.