Product Description



Oil immersed series transformer:
The S11-M series fully sealed oil immersed power transformer, a remarkable innovation from Chaotai Power, is designed with cutting-edge technology to deliver superior performance. Boasting exceptional features like low energy loss, minimized noise levels, and increased efficiency, this transformer is a champion of energy conservation and pollution reduction. Unlike traditional oil immersed transformers, this advanced model eliminates the need for an oil conservator. The oil volume adjusts seamlessly through the corrugated sheet elasticity within the oil tank, isolating the transformer from air exposure, thereby decelerating oil degradation and insulation wear. This ingenious design significantly enhances operational reliability and negates the need for maintenance during regular operations.
1. Power Capacity: Ranging from 25 to 2500KVA, with options at 24KV, 30KV, 33KV, 35KV, and 36KV. We also cater to unique customer specifications. 2. Voltage Level: Available in 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV to suit diverse needs. 3. Type of Voltage Regulation: Offers both Off-circuit and On-load options.
4. Tapping Range: Offers ±5 %, 2x2.5 %, and ±4x2.5 % for fine-tuned flexibility.
5. Frequency: Compatible with both 50Hz and 60Hz frequencies.
6. Phases: Available in both three-phase or single-phase configurations.
7. Connection Symbol: Offers Dyn11, Yyn0, or customized as per client request.
8. Short-circuit Impedance: Engineered with standard impedance specifications.
9. Altitude: Optimized for installations at altitudes not exceeding 1000m, with ambient temperatures up to 40°C. Should your conditions differ, we offer parameter adjustments to align with industry standards.
Our transformers are adjusted to meet varying environmental standards.
Power Capacity: Broad range from 25 to 2500KVA to meet versatile power requirements.
Voltage Options: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 24KV, 30KV, 33KV, 35KV, 36KV, and custom configurations are available.
Voltage Level: Specifically designed options for diverse voltage needs.
Type of Voltage Regulation: Flexibility with Off-circuit or On-load regulation to suit various applications.
Tapping Range: Precise adjustments with ±5%, ±2x2.5%, and ±4x2.5% options.
Frequency: Dual compatibility with 50Hz or 60Hz for global adaptability.
Phases: Available in versatile three-phase or single-phase options.
Connection Symbol: Options include Dyn11, Yyn0, or customized solutions according to specific requirements.
Short-circuit Impedance: Designed with industry-standard impedance for reliability.
Environment Specifications: Engineered for altitudes up to 1000m and temperatures as high as 40°C.
For conditions beyond our standard specifications, parameter tuning is available to ensure compliance with industry standards.
The fully sealed oil immersed power transformer, created by Chaotai Power, stands out with its low-loss, low-noise, and high-efficiency attributes. This advanced design ensures optimal energy savings and pollution reduction.
Our fully sealed transformer, a step ahead of conventional oil immersed models, innovatively removes the need for an oil conservator. The transformer skillfully adjusts oil volume via the elasticity of its corrugated oil tank sheet, ensuring complete air isolation to decelerate oil degradation and insulation aging. This advancement bolsters operational reliability and maintains uninterrupted service without regular maintenance requirements.
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 as a beacon of innovation and excellence in the realm of electrical integration. Recognized as a high-tech enterprise, our reputation is built upon the solid foundation of a professional R&D, production, and service team boasting over 15 years of unparalleled industry experience.
Our expansive product line features high-voltage solid-state soft starters, state-of-the-art capacitor cabinets, versatile high and low voltage switchgear, efficient gas-insulated switchgear, and comprehensive substations. These products serve a multitude of sectors including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academic institutions, healthcare, municipal commerce, water resources management, transportation infrastructures, and both commercial and residential developments.
Embracing the philosophy of 'smart manufacturing,' we are steadfast in our commitment to technological innovation and evolution. By continuously integrating high-caliber technical talents, we aim to elevate our core competitiveness significantly while delivering unparalleled value to our esteemed clients. Our journey from inception to excellence reflects our dedication to innovation, quality-driven survival, reputation-led development, and efficiency-driven management. Our guiding principles—technology-driven leadership, standardized management, superior quality, and unwavering customer satisfaction—are embedded in our quality and talent management strategies. These pillars enhance our competitive stance in the market, propelling us to serve China's electric power and grid transmission fields with unmatched speed and strength. Upholding integrity and quality, we prioritize supreme service and customer satisfaction, which form the backbone of our eternal tenet. Our relentless pursuit of excellence, innovation, and the establishment of a reliable brand are our steadfast development goals. Your recognition fuels our passion, and to our valued customers, both new and longstanding, we extend our heartfelt gratitude for your unwavering support and affection. Zhejiang ChaoTai looks forward to forging a collaborative path with you towards a brighter, shared 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.