Product Description



Oil Immersed Series Transformer:
Introducing the magnificent S11-M series, a cutting-edge, fully sealed oil-immersed power transformer, masterfully crafted by Zhejiang Chaotai Complete Equipment Co., Ltd. This remarkable transformer boasts exceptional attributes such as ultra-low energy consumption, whisper-quiet operation, and superior efficiency. As an outstanding energy solution, it significantly curtails environmental pollution. In contrast to traditional oil-immersed models, this advanced unit eliminates the need for an oil conservator. Its ingenious design effortlessly adjusts to oil volume variations with the corrugated oil tank's flexibility, maintaining a hermetic seal against air exposure. This innovative feature averts oil degradation, slows insulation aging, and dramatically boosts operational reliability, rendering routine maintenance unnecessary.
1. Power Capacity: Spanning 25-2500KVA, with selections for 24KV, 30KV, 33KV, 35KV, 36KV, and customizable specifications to suit client needs 2. Voltage Level: Available in a range of 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Offered in Off-circuit or On-load variations
4. Tapping Range: Adjustable at ±5%, 2x2.5%, or ±4x2.5%
5. Frequency: Provided in either 50Hz or 60Hz
6. Phases: Available in both Three-phase or single-phase formats
7. Connection Symbol: Configurable as Dyn11, Yyn0, with options for customization as needed
8. Short-circuit Impedance: Engineered with Standard Impedance
9. Operational Conditions: Suitable for altitudes not surpassing 1000m and temperatures below 40°C. In cases where these conditions are unmet, parameter adjustments will be made per industry standard protocols.
All essential adjustments will be made in strict accordance with industry standards.
Power Capacity: Ranging from 25-2500KVA
Voltage Levels: Covering 10KV, 11KV, 13.8KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level Overview:
Type of Voltage Regulation: Available in Off-circuit or On-load variations
Tapping Range: Available at ±5%, ±2x2.5%, ±4x2.5%
Frequency Options: Offered in 50Hz or 60Hz modes
Phases: Choices include Three-phase or single-phase configurations
Connection Symbol: Offered as Dyn11, Yyn0, with options for customization on request
Short-circuit Impedance: Designed with Standard Impedance
Operational Conditions: Optimized for altitudes not exceeding 1000m, and temperatures not surpassing 40°C
In situations where standard conditions differ, we will conduct necessary parameter adjustments, adhering to standard guidelines.
This fully sealed, oil-immersed power transformer is a marvel of innovation from Chaotai Power, designed for minimal energy loss, near-silent operation, and outstanding efficiency. It serves as a leading energy-saving solution, significantly reducing environmental pollution.
Distinct from conventional oil-immersed transformers, this fully sealed design eliminates the oil conservator. It intelligently manages oil volume fluctuations with the flexibility of the corrugated oil tank sheet, ensuring the transformer's isolation from the air. This crucial feature prevents oil degradation, reduces insulation aging, enhances reliability, and removes 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 beacon of cutting-edge technology and unparalleled innovation in the realm of electrical integration. As a renowned high-tech enterprise, we stand out due to our dedicated R&D, production, and service teams, supported by over 15 years of invaluable industry expertise. Our unwavering commitment to excellence underscores our position as a leader in pioneering innovation, consistently setting industry benchmarks.
Our diverse and advanced product portfolio presents groundbreaking solutions such as high-voltage solid-state soft starters, capacitor cabinets, high and low-voltage switchgear, gas-insulated switchgear, and substations. These essential products are pivotal across a wide spectrum of industries, ranging from energy and chemical sectors to metal smelting, electric power grids, and industrial manufacturing. Furthermore, our influence extends to academia, healthcare, municipal commerce, water management, hydropower, and road traffic, impacting both commercial and residential applications. Proudly, we empower the future through our transformative solutions, significantly impacting these vital sectors.
Driven by a philosophy of relentless technological advancement and 'smart manufacturing,' we are devoted to nurturing a culture of excellence by integrating top-tier technical talents and innovative strategies. This strategic commitment enhances our core competencies, ensuring unparalleled service value for our clients. Our growth story is a testament to our core values: evolving from humble beginnings to industry leadership through steadfast dedication and innovation. Our business strategy focuses unwaveringly on quality as the foundation of survival, market reputation as the path for development, and management efficiency as the key to profitability. Our promise is to harness '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 that aim higher, reach further, and achieve more. Integrity, unmatched quality, exceptional service, and customer satisfaction are central to our values. Our relentless pursuit of excellence drives us to innovate perpetually, establishing our brand as synonymous with trust. The acknowledgment of our valued customers propels our ambition. We express sincere gratitude to our loyal customers, both new and longstanding, and warmly invite you to join Zhejiang Chaotai on a shared journey toward 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.