Product Description



Oil Immersed Series Transformer:
Introducing the S11-M series fully sealed oil-immersed power transformer by Chaotai Power, a marvel of engineering designed with efficiency at its core. Boasting low loss, reduced noise levels, and exceptional efficiency, this state-of-the-art transformer promises substantial energy savings and minimizes environmental impact. Unlike traditional oil-immersed transformers, this innovative design eliminates the need for an oil conservator. The transformer's oil volume adjustments are seamlessly managed through the corrugated oil tank's elastic corrugated sheet, providing top-notch isolation from air, thereby preventing oil deterioration and insulation aging. This ensures heightened operational reliability and obviates the need for regular maintenance.
1. Power Capacity: 25-2500KVA, 24KV, 30KV, 33KV, 35KV, 36KV, and custom requirements. 2. Voltage Level: 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Offered in both Off-circuit and On-load configurations.
4. Tapping Range: Precision control with ±5%, ±2x2.5%, and ±4x2.5% options.
5. Frequency: Available in both 50Hz and 60Hz.
6. Phases: Configurable for Three or Single phase operations.
7. Connection Symbol: Choose between Dyn11, Yyn0, or customized as per your request.
8. Short-Circuit Impedance: Compliant with Standard Impedance specifications.
9. Altitude: Operational up to 1000m above sea level, with ambient temperatures not exceeding 40°C. If conditions exceed these parameters, adjustments will be made to meet standards.
Conformance to Standard: Tailored adjustments ensure compliance with specified conditions.
Power Capacity Range: From 25 to 2500KVA, ensuring diverse application suitability.
Voltage Varieties: Options available include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV, 30KV, 33KV, 35KV, and 36KV.
Voltage Regulation Levels: Tailored to meet your specific electrical requirements.
Type of Voltage Regulation: Options include both Off-circuit and On-load for versatile application.
Tapping Range: Offers control precision with options of ±5%, ±2x2.5%, and ±4x2.5%.
Frequency Options: Available for both 50Hz and 60Hz systems.
Phase Configurations: Designed for both three-phase and single-phase operations.
Connection Symbols: Standard options Dyn11, Yyn0, and customizable solutions.
Short-Circuit Impedance: Adheres strictly to standard impedance requirements.
Operational Conditions: Heights up to 1000m, temperatures as high as 40°C.
Custom Modulation: Parameters adjusted to meet demanding environmental standards.
The fully sealed oil-immersed power transformer by Chaotai Power is engineered for excellence. It offers low energy loss, minimal noise, and superior efficiency, delivering substantial energy conservation and pollution reduction.
This advanced transformer design replaces the traditional oil conservator with a corrugated oil tank that adjusts oil volume through its elastic corrugated sheet. Isolated from the air, it prevents oil degradation and insulation wear, boosting reliability and eliminating the need for maintenance during standard operations.
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 at the forefront of innovation as a distinguished high-tech enterprise in the realm of electrical integration. With a dedicated and professional R&D, production, and service team, our expertise is built on over 15 years of rich industry experience. This profound expertise empowers us to deliver cutting-edge solutions tailored to meet the dynamic needs of our clients.
Our diverse portfolio showcases a wide array of pioneering products such as high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. Our state-of-the-art offerings are instrumental across a spectrum of industries, including energy and chemical sectors, metal smelting, electric power grids, industrial manufacturing, academia, medical and pharmaceutical fields, as well as municipal commerce. We also serve water conservancy and hydropower projects, road traffic systems, and both commercial and residential developments.
Our commitment to technological innovation and our vision of 'smart manufacturing' drives us to continuously attract top-tier technical talent, significantly bolstering our core strengths. This relentless pursuit of excellence enables us to offer unparalleled value and services to our esteemed clients, reinforcing our ambition to establish a preeminent brand within the industry. Since our inception, we have charted a remarkable journey from humble beginnings to industry excellence. By steadfastly embracing innovation, we have forged a modern business strategy that prioritizes quality for survival, market demands for development, reputation for growth, and efficient management for profitability. Our guiding principle is rooted in 'technology as the guide, standardized management, superior quality, and customer satisfaction,' which enhances our competitiveness and propels us to new heights in serving China's electric power and grid sectors with unparalleled speed and strength. Integrity, quality, supreme service, and unwavering customer satisfaction are the cornerstones of our ethos. Our aspiration for excellence, relentless innovation, and the unwavering pursuit of a reliable brand are the pillars of our enduring growth strategy. Your trust and support inspire us to achieve greater heights. We extend heartfelt gratitude to both new and long-standing customers for their loyalty and affection. Senhang Technology eagerly anticipates collaborating with you to forge 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.