Product Description
Oil Immersed Series Transformer:
The S11-M series, a fully sealed oil-immersed power transformer, is a masterpiece from Chaotai Power. It brings the trifecta of low loss, minimal noise, and exceptional efficiency, creating an exemplary energy-saving tool while significantly reducing pollution. Unlike conventional oil-immersed transformers, this innovative design eliminates the need for an oil conservator. The oil volume changes are managed and compensated seamlessly through the corrugated sheet elasticity within the tank. This feature isolates the transformer from air exposure, which not only prevents oil deterioration and insulation aging but also enhances operational reliability and reduces the need for maintenance during regular operations.
1. Power Capacity: 25-2500KVA, adaptable to 24KV, 30KV, 33KV, 35KV, 36KV, and customizable as per customer requirements. 2. Voltage Level: Offering 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV 3. Type of Voltage Regulation: Available in Off-circuit or On-load options
4. Tapping Range: Precision at ±5%, ±2x2.5%, ±4x2.5%
5. Frequency: Options of 50Hz or 60Hz
6. Phases: Available in three-phase or single-phase configurations
7. Connection Symbol: Select from Dyn11, Yyn0 or customize as needed
8. Short-circuit Impedance: Adhering to standard impedance metrics
9. Altitude: Suitable for regions not exceeding 1000m, with ambient temperatures up to 40°C. If these conditions are not met, we will fine-tune parameters to align with standards.
We ensure compliance with established standards.
Power Capacity: 25-2500KVA
Voltage Levels: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV
Voltage Level:
Type of Voltage Regulation: Choose between Off-circuit or On-load
Tapping Range: Offering ±5%, ±2x2.5%, ±4x2.5% adjustments
Frequency: Compatible with 50Hz or 60Hz
Phases: Available in three-phase or single-phase
Connection Symbol: Dyn11, Yyn0, or customize to your specifications
Short-circuit Impedance: Meets standard impedance criteria
Altitude Conditions: Optimum functionality below 1000m altitude and ambient temperatures not exceeding 40°C
Should default conditions be unmet, parameter adjustments will be made in strict accordance with existing standards.
This fully sealed oil-immersed power transformer, crafted by Chaotai Power, exemplifies low loss, minimal noise, and superior efficiency, optimizing energy savings while actively reducing pollution.
Unlike typical oil-immersed transformers, the fully sealed variant eliminates the oil conservator. The oil volume adapts autonomously, thanks to the corrugated sheet's elasticity. This design keeps the transformer air-isolated, preventing oil and insulation degradation, enhancing reliability, and reducing maintenance demands during standard operation.
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 cutting-edge enterprise at the forefront of electrical integration. With an esteemed team of professionals dedicated to research, development, production, and exceptional service, we boast over 15 years of unparalleled industry experience.
Our extensive product line includes high-voltage solid-state soft starters, capacitor cabinets, sophisticated high and low voltage switchgear, advanced gas-insulated switchgear, and robust substations. Our innovations are trusted across a wide array of sectors: from energy and chemical industries, metal smelting, and electric power grids, to industrial manufacturing, universities and research institutions, healthcare and pharmaceutical domains, municipal commerce, water conservancy and hydropower, infrastructure like road traffic, as well as commercial and residential spaces.
Embracing the spirit of technological innovation and our visionary philosophy of 'smart manufacturing', we actively recruit top-tier technical talent to significantly boost our core competencies. Our mission is to deliver unmatched service value, aiming to establish the most prestigious brand within our industry. From our inception, we have charted a remarkable journey—from our humble beginnings to achieving excellence. Innovation remains our beacon as we navigate the modern business landscape, prioritizing quality for survival, reputation for development, and management for efficiency. We are steadfast in our commitment to leverage technology as our guide, adhere to standardized management, uphold superior quality, and ensure customer satisfaction. These principles empower us to enhance our market competitiveness, aspiring to serve China’s electric power and grid transmission and distribution sectors with ever-increasing speed, strength, and ambition. Integrity is our foundation, quality is our hallmark, and service is our creed, with customer satisfaction being our eternal pursuit. Relentlessly striving for excellence, perpetual innovation, and building a brand of trust remains our unwavering objective. Your trust fuels our progress. We express heartfelt gratitude to all our valued clients, both new and longstanding, for their unwavering support and loyalty. We at Senhang Technology eagerly anticipate collaborating with you to forge a brighter 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.
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