Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series fully sealed oil immersed power transformer, a remarkable innovation by Chaotai Power. Designed with the utmost precision, this transformer stands out with its low loss, minimal noise, and exceptional efficiency, offering an outstanding energy-saving solution that significantly reduces pollution. Unlike conventional transformers, this state-of-the-art model eliminates the need for an oil conservator. The dynamic elasticity of the corrugated sheet within its oil tank seamlessly adjusts the oil volume, ensuring the transformer is hermetically isolated from the air. This key feature inhibits oil deterioration and minimizes insulation aging, thereby boosting operational reliability and eliminating the need for maintenance during regular operation.
1. Power Capacity ranges between 25-2500KVA, with options for 24KV, 30KV, 33KV, 35KV, 36KV, and customized requirements from our valued customers. 2. Voltage Level options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation available as Off-circuit or On-load.
4. Tapping Range: Featuring precision with ±5%, 2x2.5%, ±4x2.5% to cater to diverse needs.
5. Frequency: Compatible with either 50Hz or 60Hz for versatile applications.
6. Phases: Configurable as either Three or Single phase to suit various power distribution requirements.
7. Connection Symbol: Options available for Dyn11, Yyn0, or customized as requested.
8. Short-circuit Impedance: Adheres to Standard Impedance for consistent performance.
9. Altitude: Designed for altitudes not exceeding 1000m, with ambient temperatures not surpassing 40°C. If conditions differ,
we will adjust parameters in accordance with the standard to ensure optimal performance.
Power Capacity: Offers a broad range from 25-2500KVA to meet various industrial and commercial needs.
Voltage Levels: Includes multiple options such as 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV, ensuring comprehensive voltage compatibility.
Voltage Level:
Type of Voltage Regulation: Flexibility offered with Off-circuit or On-load options.
Tapping Range: Engineered with precision options of ±5%, ±2x2.5%, ±4x2.5% for tailored energy requirements.
Frequency: Available in 50Hz or 60Hz, catering to various geographical and system specifications.
Phases: Customizable as Three or Single phase, designed to optimize power distribution.
Connection Symbol: Can be configured as Dyn11, Yyn0, or adjusted per specific request.
Short-circuit Impedance: Meets Standard Impedance, ensuring reliable operation.
Altitude: Optimal functionality at altitudes not exceeding 1000m and temperatures not exceeding 40°C.
For conditions outside these parameters, we will customize settings in accordance with standards to maintain performance excellence.
Our fully sealed oil immersed power transformer, crafted by Chaotai Power, excels with its low loss, minimal noise, and superior efficiency, presenting a stellar energy-saving solution that markedly reduces environmental impact.
This pioneering transformer design eliminates the traditional oil conservator, utilizing the corrugated oil tank's elasticity to automatically adjust and compensate oil volume changes. By isolating the transformer from air exposure, it effectively prevents oil degradation and insulation aging, enhancing 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. stands as a high-tech enterprise in the realm of electrical integration. With a formidable team dedicated to research, development, production, and service, we boast over 15 years of rich industry experience. Our expertise ensures that we remain at the forefront of innovation and excellence.
Our impressive range of products includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and advanced substations. These products find application across a diverse array of sectors: from energy and chemical industries to metal smelting, electric power grids, and industrial manufacturing. They are indispensable in universities, research institutions, the medical and pharmaceutical sectors, municipal commerce, water conservancy, hydropower, road traffic, and commercial and residential areas.
Driven by a philosophy of technological innovation and 'smart manufacturing,' we are committed to ushering in high-level technical talent to significantly bolster our company's core strengths. Our journey from inception to a position of excellence underscores our commitment to innovation. We follow a business model that emphasizes quality for survival, market orientation, reputation for growth, and management for efficiency. Our ethos revolves around 'technology as the guide, standardized management, excellent quality, and customer satisfaction.' These pillars enhance our competitive edge in the market, allowing us to push boundaries in China's electric power and grid sectors with increased speed, strength, and ambition. Integrity, quality, and customer satisfaction remain our unwavering principles, and we relentlessly pursue excellence, innovation, and the cultivation of a brand that commands trust. Your recognition fuels our progress, and we extend our deepest gratitude to both new and long-standing customers for their steadfast support. At Senhang Technology, we eagerly anticipate partnering with you to forge a brighter, more 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.