Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series fully sealed oil-immersed power transformer by Chaotai Power, a masterpiece of engineering that embodies low loss, minimal noise, and superior efficiency. This state-of-the-art transformer not only delivers exceptional energy-saving capabilities but also helps in reducing environmental pollution. Unlike ordinary oil-immersed transformers, this innovative design eliminates the need for an oil conservator. The fully sealed construction utilizes a corrugated oil tank, where oil volume changes are seamlessly managed and compensated by the elasticity of the corrugated sheets. This design ensures the transformer remains isolated from air, significantly mitigating oil deterioration and insulation aging, thereby boosting operational reliability and eliminating the need for maintenance under normal operation.
1. Power Capacity: Ranges from 25-2500KVA, with available voltage levels including 24KV, 30KV, 33KV, 35KV, 36KV, and customizable options to meet specific client requirements.
4. Tapping Range: Offering flexibility with a range of ±5%, 2x2.5%, and ±4x2.5% for precise voltage control.
5. Frequency: Designed to operate efficiently at either 50Hz or 60Hz.
6. Phases: Available in both three-phase and single-phase configurations to fit diverse applications.
7. Connection Symbol: Configurable as Dyn11, Yyn0, or tailored to specific needs upon request.
8. Short-circuit Impedance: Adheres to standard impedance specifications, ensuring reliable performance.
9. Altitude: Suitable for installation at altitudes not exceeding 1000m, with an ambient temperature threshold of 40°C. If site conditions differ, parameter adjustments will be made to comply with standards.
In accordance with standard guidelines, parameters are modulated to accommodate unique site conditions.
Power Capacity: Versatile range from 25-2500KVA.
Voltage Options: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV, and more.
Voltage Level: Diverse voltage levels available for various operational needs.
Type of Voltage Regulation: Choice between Off-circuit or On-load for optimal control.
Tapping Range: Flexible options include ±5%, 2x2.5%, and ±4x2.5% for customizable voltage regulation.
Frequency: Compatible with either 50Hz or 60Hz systems, ensuring broad applicability.
Phases: Configurations available in three-phase or single-phase to suit customer requirements.
Connection Symbol: Options include Dyn11, Yyn0, or customized as requested for system compatibility.
Short-circuit Impedance: Conforms to standard impedance for consistent, dependable operation.
Installation & Environmental Suitability: Designed for altitudes up to 1000m, operational within ambient temperatures not exceeding 40°C.
Parameter adjustments are available to meet non-standard site conditions, ensuring compliance and optimal performance.
Chaotai Power's fully sealed oil-immersed power transformer stands out with its low loss, low noise, and high efficiency, making it an eco-friendly choice with significant energy-saving benefits.
The fully sealed design of this transformer from Chaotai Power eliminates the oil conservator, utilizing a corrugated oil tank. This advanced feature automatically manages oil volume changes, prevents air exposure, and subsequently slows down oil and insulation aging. As a result, it enhances operational reliability and obviates the need for maintenance under normal conditions.
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. takes pride in being a cutting-edge, high-tech enterprise that excels in the realm of electrical integration. With an elite team dedicated to research, development, production, and service, we bring over 15 years of rich industry experience to the table, ensuring innovative and reliable solutions.
Our flagship products encompass a comprehensive range of electrical solutions, including advanced high-voltage solid-state soft starters, sophisticated capacitor cabinets, versatile high and low voltage switchgear, durable gas-insulated switchgear, and robust substations. These products find extensive application across diverse sectors like energy, chemical industries, metal smelting, power grids, industrial manufacturing, academic institutions, healthcare, municipal commerce, water management, road traffic systems, and both commercial and residential developments.
At the heart of our philosophy is a commitment to technological innovation and the visionary concept of 'smart manufacturing.' We are proactive in attracting top-tier technical talent to bolster our core strengths, offering unparalleled value and striving to establish a preeminent brand presence in our industry. From inception, we've progressed from nascent beginnings to industry excellence by upholding a modern business ethos: quality fuels survival, reputation drives growth, and management ensures efficiency. Our unwavering dedication to 'technology as the guide, standardized management, premium quality, and customer satisfaction' enhances our market position, aiming to elevate China's power transmission and distribution sectors with unmatched speed, strength, and ambition. We uphold integrity, prioritize quality, celebrate superior service, and pledge unwavering customer satisfaction. Our relentless pursuit of excellence, innovation, and trustworthiness underpins our development objectives. Your trust propels us forward, and we extend heartfelt gratitude to our patrons, both new and long-standing. Together with Senhang Technology, we eagerly anticipate forging a brighter future in synergy with you.
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.