Product Description



Oil Immersed Series Transformer:
Introducing the state-of-the-art S11-M series fully sealed oil immersed power transformer, brought to you by Chaotai Power. This innovative transformer boasts a trifecta of advantages—low loss, low noise, and high efficiency—delivering exceptional energy-saving effects while minimizing environmental pollution. Unlike traditional oil-immersed transformers, this advanced model eliminates the need for an oil conservator. Instead, it ingeniously adjusts and compensates for oil volume changes through the elasticity of corrugated sheets within its corrugated oil tank. Its fully sealed design prevents air contact, significantly retarding oil deterioration and insulation aging, thereby enhancing operational reliability and offering maintenance-free functionality under normal conditions.
1. Power Capacity: Ranges from 25-2500KVA, accommodating voltage levels of 24KV, 30KV, 33KV, 35KV, 36KV, and customizable as per your requirements. 2. Voltage Level: Options include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit or On-load regulation.
4. Tapping Range: Provides flexible tapping options of ±5 % and 2x2.5 % ±4x2.5 % for precise adjustments.
5. Frequency: Available in both 50Hz and 60Hz to suit global standards.
6. Phases: Available in either three-phase or single-phase configurations.
7. Connection Symbol: Standard options include Dyn11, Yyn0, or tailored to your specifications.
8. Short-Circuit Impedance: Adheres to standard impedance levels for reliable performance.
9. Altitude: Designed to perform up to an altitude of 1000 meters, with ambient temperatures not exceeding 40°C. If the parameters exceed these conditions, adjustments can be made to align with standards.
Modifications will be made in accordance with industry standards if environmental conditions are not met.
Power Capacity: Versatile range from 25-2500KVA, ensuring adaptability for various applications.
Voltage Levels: Comprehensive range including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV, meeting diverse energy needs.
Voltage Level Options:
Type of Voltage Regulation: Select from Off-circuit or On-load to suit your operation demands.
Tapping Range: Offers adjustable options of ±5% and ±2x2.5% ±4x2.5% for precise voltage control.
Frequency: Compatible with both 50Hz and 60Hz power systems, ensuring global applicability.
Phases: Offered in three-phase or single-phase for diversified operational requirements.
Connection Symbol: Standard configurations include Dyn11, Yyn0, with customization available.
Short-Circuit Impedance: Ensures standard performance and reliability across all operations.
Altitude: Suitable for operations at altitudes up to 1000 meters and ambient temperatures not exceeding 40°C.
In cases where environmental conditions are not met, we will adjust parameters to meet standard industry requirements.
Discover the superior performance of the fully sealed oil immersed power transformer developed by Chaotai Power, featuring low loss, low noise, and high efficiency for optimal energy savings and pollution reduction.
Unlike conventional models, this cutting-edge transformer dispenses with the oil conservator, leveraging the corrugated sheet's elasticity within its oil tank for automatic oil volume adjustment and compensation. Fully isolated from air, it effectively prevents oil degradation and insulation aging, boosting operational reliability and ensuring maintenance-free performance 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 as a beacon of innovation in the high-tech realm, passionately dedicated to the intricate world of electrical integration. We pride ourselves on a formidable team of R&D specialists, production experts, and unparalleled service professionals, all boasting over 15 years of industry prowess.
Our product suite is a testament to our expertise, featuring top-tier high-voltage solid-state soft starters, cutting-edge capacitor cabinets, and versatile high and low voltage switchgear. Our gas-insulated switchgear and robust substations are cornerstones in sectors spanning energy and chemical operations, metal smelting, and electric power grids. Our innovations power industrial manufacturing, prestigious universities, and research institutions, while also supporting the medical, pharmaceutical, and municipal commerce sectors. From water conservancy and hydropower to road traffic infrastructure and bustling commercial and residential hubs, our solutions are integral to myriad applications.
Embracing technological advancement and the ethos of 'smart manufacturing,' we are committed to fostering an environment rich with high-caliber technical talent, thrusting our core competitiveness to new heights. Our mission is to deliver unparalleled value and craft an unrivaled brand in our industry. Since our inception, we have charted a course of relentless progress, evolving from mere beginnings to a beacon of excellence. Innovation is our lifeblood, and by adhering to a modern business model, we thrive through quality assurance, market orientation, reputation-led development, and efficiency-driven management. Our devotion to 'technology as the guide, standardized management, excellent quality, and customer satisfaction' is unwavering. We aim to bolster the company's market stance and tirelessly serve China's electric power and grid sectors with aspirations of unparalleled speed, power, and ambition. Integrity forms our foundation, quality commands our efforts, service tops our priorities, and customer satisfaction remains our eternal promise. Our unyielding goal is to pursue excellence, drive continuous innovation, and forge a brand that commands trust. Your recognition fuels our journey. We extend our heartfelt gratitude to all our esteemed clients for their enduring support. Zhejiang Chaotai Complete Equipment Co., Ltd. eagerly anticipates partnering with you to shape 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.