Product Description
Oil Immersed Series Transformer:
Introducing the S11-M series, a state-of-the-art fully sealed oil immersed power transformer engineered by Chaotai Power. This cutting-edge transformer boasts remarkable advantages such as minimized loss, whisper-quiet operation, and exceptional efficiency, all contributing to superior energy conservation and reduced environmental impact. Unlike traditional oil immersed transformers, this revolutionary fully sealed model eliminates the need for an oil conservator. It ingeniously regulates and compensates oil volume changes through the adaptive elasticity of the corrugated oil tank's corrugated sheets. By maintaining an air-free environment, it significantly decelerates oil deterioration and insulation aging, ensuring heightened operational reliability and eliminating the necessity for maintenance during standard operations.
1. Power Capacity: 25-2500KVA, 24KV, 30KV, 33KV, 35KV, 36KV and adaptable to customer specifications. 2. Voltage Level: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Available in Off-circuit or On-load configurations
4. Tapping Range: Adjustable at ±5%, 2x2.5%, ±4x2.5%
5. Frequency: Compatible with 50Hz or 60Hz
6. Phases: Available in Three-phase or Single-phase options
7. Connection Symbol: Configurable to Dyn11, Yyn0 (or as per request)
8. Short-circuit Impedance: Complies with Standard Impedance
9. Altitude: Suitable for locations not exceeding 1000m, with an ambient temperature not exceeding 40°C. If conditions deviate, parameter adjustments will be made
in strict adherence to established standards.
Power Capacity: Ranging from 25-2500KVA
Voltage Levels offer flexibility: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, 36KV
Voltage Level:
Type of Voltage Regulation: Options for Off-circuit or On-load adjustments
Tapping Range: Fine-tunable at ±5%, ±2x2.5%, ±4x2.5%
Frequency: Operates seamlessly at 50Hz or 60Hz
Phases: Offers flexibility with Three-phase or Single-phase models
Connection Symbol: Customizable with Dyn11, Yyn0 (or as per requirements)
Short-circuit Impedance: Meets Standard Impedance guidelines
Suitable for locations with Altitude not exceeding 1000m, and ambient temperature not exceeding 40°C
Parameter modifications are available to accommodate deviations, ensuring compliance with rigorous standards.
The fully sealed oil immersed power transformer from Chaotai Power is a marvel of engineering, offering reduced loss, reduced noise and outstanding efficiency. It is designed to deliver remarkable energy savings and minimal environmental impact.
Compared to conventional oil immersed transformers, this advanced fully sealed model eliminates the oil conservator, smartly adjusting oil volume changes through the corrugated oil tank's adaptive elasticity. The transformer is hermetically sealed from external air, greatly slowing oil degradation and insulation aging, thus enhancing operational dependability 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 proudly as a beacon of innovation in electrical integration. As a distinguished high-tech enterprise, we are armed with a formidable R&D, production, and service team, boasting over a decade and a half of illustrious industry expertise.
Our exceptional product roster features high-voltage solid-state soft starters, robust capacitor cabinets, versatile high and low voltage switchgear, cutting-edge gas-insulated switchgear, and advanced substations. Our offerings are designed to excel across a spectrum of sectors including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, medical and pharmaceutical fields, municipal commerce, water conservancy and hydropower, transportation networks, as well as commercial and residential domains.
Guided by the spirit of 'smart manufacturing' and unyielding technological innovation, we are on a relentless pursuit to attract top-tier technical talent, elevating our core competencies to new heights. We are resolute in delivering unparalleled value to our esteemed clientele, as we endeavor to establish ourselves as the preeminent brand within our industry. Since our inception, Zhejiang Chaotai has demonstrated remarkable growth, evolving from humble beginnings to industry excellence. Our commitment to innovation drives our journey along a modern business trajectory—anchored in quality for survival, market-orientation for expansion, reputation for development, and astute management for efficiency. Our operations stand firmly on the pillars of technology leadership, standardized processes, superior quality, and unwavering customer satisfaction. As we bolster our market competitiveness, our ambition is to revolutionize China's electric power and grid sectors with unparalleled speed, strength, and ambition. We hold steadfast to the principles of integrity, prioritize quality above all, and deliver service that transcends expectations, ensuring customer satisfaction as our eternal mandate. Our relentless pursuit of excellence and continuous innovation fuels our aspiration to forge an indelible brand that you can trust. Your support is the catalyst for our progress, and we express our heartfelt gratitude to our valued customers, both new and longstanding. Senhang Technology eagerly anticipates collaborating with you to craft a future replete with promise and success.
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.
Audited Supplier 
){kind=link}