Product Description



Introducing the Oil Immersed Series Transformer:
Discover the S11-M series, a fully sealed oil immersed power transformer, proudly developed and manufactured by Chaotai Power. This transformer is celebrated for its exceptional features, including low loss, minimal noise, and superior energy efficiency. Its impressive energy-saving capabilities translate to reduced pollution, setting a new standard for eco-friendly technology. Unlike conventional oil immersed transformers, this innovative model eliminates the need for an oil conservator. Instead, it utilizes a corrugated oil tank, where the elasticity of the corrugated sheet automatically adjusts and compensates for changes in oil volume. This design means the transformer is effectively isolated from the air, significantly preventing oil deterioration and insulation aging. The result is enhanced operational reliability and a maintenance-free experience during normal operations.
1. Power Capacity: From 25KVA to an impressive 2500KVA, accommodating voltage levels such as 24KV, 30KV, 33KV, 35KV, 36KV, and customizable according to customer specifications. 2. Voltage Level: Available in a range of options including 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, 22KV. 3. Type of Voltage Regulation: Choose between Off-circuit and On-load regulation for tailored performance.
4. Tapping Range: Offers flexibility with ±5%, 2x2.5%, and ±4x2.5% variations.
5. Frequency: Compatible with both 50Hz and 60Hz frequencies for diverse applications.
6. Phases: Available in both three-phase and single-phase configurations.
7. Connection Symbol: Options include Dyn11, Yyn0, or as specified by customer requirements.
8. Short-circuit Impedance: Adheres to standard impedance levels for safety and reliability.
Altitude considerations: Suitable for installation at altitudes not exceeding 1000m with ambient temperatures not surpassing 40°C. If conditions are more demanding, parameter adjustments will align with standards.
Our flexible approach ensures compliance with established standards to cater to unique environmental conditions.
Power Capacity: An extensive range from 25KVA to 2500KVA, providing versatile energy solutions.
Voltage Levels: Customizable voltage options including IOkV, 11kV, 20kV, 22kV, 30kV, 33kV, 35kV, and 36kV for diverse requirements.
Comprehensive Voltage Level Options:
Versatile Voltage Regulation Types: Choose from Off-circuit or On-load configurations.
Dynamic Tapping Range: Offers ±5%, ±2x2.5%, and ±4x2.5% adjustments for optimal performance.
Frequency Options: Supports both 50Hz and 60Hz for flexible usage.
Phases: Available in both three and single-phase setups for comprehensive application.
Connection Symbol Choices: Choose Dyn11, Yyn0, or tailor as per your request for precise connectivity.
Short-circuit Impedance: Engineered to standard specifications for assured safety and performance.
Altitude & Temperature Suitability: Optimized for sites up to 1000m in altitude with temperatures up to 40°C.
Should specific site conditions necessitate, we adjust parameters to align with stringent standards, ensuring optimal functionality.
The fully sealed oil immersed power transformer from Chaotai Power stands out with its remarkable low loss, quiet operation, and exceptional efficiency. It not only saves energy but also significantly reduces environmental pollution.
Compared to traditional models, this transformer eliminates the oil conservator, automatically adjusting oil volume via the corrugated oil tank's elasticity. Its design shields it from air exposure, thereby delaying oil deterioration and insulation aging. This innovation results in heightened operational reliability and typically requires no 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 electrical integration as a distinguished high-tech enterprise. With a dedicated, expert R&D, production, and service team boasting over 15 years of industry experience, we are poised to deliver innovation and precision.
Our diverse product portfolio features high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These advanced solutions are extensively utilized across a spectrum of industries, including energy and chemical sectors, metal smelting, power grids, industrial manufacturing, academia and research, medical and pharmaceutical fields, municipal commerce, water conservancy and hydropower, road traffic, as well as commercial and residential domains.
In pursuit of technological innovation and the philosophy of 'smart manufacturing,' we are committed to recruiting top-tier technical talent to substantially fortify our company's core competitiveness. Our mission is to deliver unparalleled service and establish the preeminent brand within our industry. Since our inception, we have embarked on a journey from inception to excellence, embracing innovation and emphasizing a modern business strategy of thriving through quality, market focus, growth through reputation, and efficiency through adept management. Our commitment is to harness technology as our guide, uphold standardized management, ensure superior quality, and achieve ultimate customer satisfaction, thereby enhancing our market competitiveness and advancing China's electric power and grid transmission fields with agility and ambition. Integrity forms our foundation, quality is our hallmark, exceptional service is our promise, and customer satisfaction is our perpetual commitment. We are driven by excellence, relentless innovation, and the aspiration to cultivate a brand synonymous with trustworthiness. Your recognition fuels our drive. We extend our gratitude to all our loyal customers for their unwavering support and affection. Senhang Technology eagerly anticipates collaborating closely with you to craft 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.