Product Description
Oil Immersed Series Transformer:
Introducing the S11-M Series Fully Sealed Oil Immersed Power Transformer, meticulously crafted by Chaotai Power. This innovation boasts exceptional benefits such as low loss, minimal noise, and unmatched efficiency, delivering outstanding energy-saving results while curbing pollution. Unlike conventional oil-immersed transformers, this fully sealed design eliminates the need for an oil conservator. The variability in oil volume is seamlessly regulated through the flexible corrugated sheet of the oil tank, maintaining isolation from air to inhibit oil degradation and insulation aging. This enhances operational reliability and ensures maintenance-free performance during regular use.
1. Power Capacity: Ranging from 25KVA to 2500KVA, accommodating voltage levels of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable as per client specifications. 2. Voltage Level: Available in diverse options such as 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Options include Off-circuit or On-load adjustment.
4. Tapping Range: Adjustable to ±5%, with finer increments of 2x2.5% and 4x2.5% available for precision tuning.
5. Frequency: Configurable for either 50Hz or 60Hz operations.
6. Phases: Flexibility in design, supporting both three-phase and single-phase configurations.
7. Connection Symbol: Standard options include Dyn11 and Yyn0, with custom variations available upon request.
8. Short-circuit Impedance: Engineered to standard specifications to ensure optimal performance.
9. Altitude: Suitable for installation up to 1000 meters above sea level, with an ambient temperature tolerance not exceeding 40°C.
Should conditions exceed standard parameters, our expert team will adjust specifications to maintain compliance with industry standards.
Power Capacity: A robust unit offering capacities from 25KVA to 2500KVA.
Voltage Specifications: Tailored to suit various applications, including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Level Specifications:
Voltage Regulation Type: Select from Off-circuit or On-load, as per operational needs.
Tapping Range: Offers nuanced adjustments with ±5%, and increments of ±2x2.5% and ±4x2.5% for detailed configuration.
Operational Frequency: Compatible with both 50Hz and 60Hz frequencies.
Phase Compatibility: Designed for both three-phase and single-phase systems.
Connection Symbol Options: Choose from Dyn11, Yyn0, or customization to fit specific requirements.
Short-circuit Impedance: Adheres to standard impedance metrics for reliability.
Installation Altitude: Optimized for elevations up to 1000m, with a temperature ceiling of 40°C.
For installations outside these parameters, we are equipped to adapt settings in line with established standards for seamless integration.
The fully sealed oil-immersed transformer by Chaotai Power stands out with its low-loss, low-noise, and high-efficiency characteristics, ensuring significant energy savings and minimal environmental impact.
Distinguished from typical oil-immersed transformers, our fully sealed variant eliminates the oil conservator, utilizing the corrugated oil tank's elastic properties to regulate oil volume autonomously. This design maintains separation from the air, slowing oil and insulation aging, thereby boosting reliability and negating the need for maintenance under normal conditions.
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 distinguished high-tech enterprise committed to pioneering advancements in the field of electrical integration. With a robust and skilled team specializing in R&D, production, and impeccable service, we boast over 15 years of comprehensive industry experience, setting new benchmarks in innovation and performance.
Our impressive portfolio of products encompasses high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and advanced substations. These cutting-edge solutions find extensive applications across diverse sectors such as energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, prestigious universities and research institutions, medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower, road traffic, and vibrant commercial and residential zones, ensuring unparalleled performance and reliability.
We are steadfast in our commitment to embrace technological innovation and embody the philosophy of 'smart manufacturing.' By actively recruiting top-tier technical talents, we continuously enhance our core competencies, delivering exceptional services and aspiring to establish the preeminent brand in our industry. Since our inception, we have embarked on a remarkable journey of transformation—from inception to excellence. Our guiding principles of innovation chart a path of quality-driven survival, market orientation, reputation-fueled development, and efficiency-enhanced management. Dedicated to 'technology as the guide, standardized management, superior quality, and customer satisfaction,' we consistently elevate our market competitiveness, aiming to serve China's electric power and grid sectors with an unmatched zeal for speed, strength, and ambition. Integrity is our cornerstone, quality our standard, service our pride, and customer satisfaction our eternal pursuit. Achieving excellence and fostering innovation to build a trusted brand remains our resolute goal. Your recognition is our driving force, and we extend our heartfelt gratitude to all our loyal customers for their unwavering support and affection. Senhang Technology eagerly anticipates forging a prosperous future together, hand in hand, advancing towards 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.
Audited Supplier 
){kind=link}