Product Description



Oil immersed series transformer:
Introducing the S11-M series fully sealed oil immersed power transformer by Chaotai Power, a marvel in energy efficiency and eco-friendly design. This transformer boasts low loss and minimal noise, ensuring a high-efficiency performance that saves energy and minimizes environmental impact. Unlike traditional oil immersed transformers, this innovative design eliminates the need for an oil conservator. The transformer autonomously adjusts and compensates for oil volume fluctuations, thanks to the elasticity of the corrugated oil tank. By isolating the transformer from air exposure, it significantly retards oil deterioration and insulation aging, thereby enhancing operational reliability and eliminating the need for maintenance during regular operation.
1. Power Capacity: Ranging from 25 to 2500KVA, with voltage levels adaptable to 24KV, 30KV, 33KV, 35KV, 36KV, and custom specifications based on customer requirements. 2. Voltage Level: Choices include 10KV, 11KV, 13.8KV, 15KV, 17.5KV, 20KV, and 22KV. 3. Type of Voltage Regulation: Options available for Off-circuit or On-load regulation.
4. Tapping Range: Flexible options of ±5 %, 2x2.5 %, and ±4x2.5 % for tailored performance.
5. Frequency: Compatible with both 50Hz and 60Hz systems.
6. Phases: Available in both Three-phase and Single-phase configurations to suit diverse needs.
7. Connection Symbol: Configurations of Dyn11 and Yyn0 available, with customization options on request.
8. Short-circuit Impedance: Designed to meet standard impedance requirements for robust performance.
9. Altitude and Temperature: Operates optimally at altitudes not exceeding 1000m and ambient temperatures not
exceeding 40°C. Should these conditions be unmet, we are equipped to adjust parameters to align with standard specifications.
Power capacity: From 25 to 2500KVA, our transformers are designed for versatility.
IOkV, 11kV, 13.8kV, 15kV, 17.5kV, 20kV, 22kV, 30kV, 33kV, 35kV, and 36kV options provide a wide array of choices.
Voltage Level: Offering a comprehensive selection to meet diverse operational requirements.
Type of Voltage Regulation: Choose between Off-circuit or On-load to best fit your application.
Tapping Range: Customizable tapping parameters include ±5%, ±2x2.5%, and ±4x2.5% for specific needs.
Frequency: Designed for compatibility with both 50Hz and 60Hz, ensuring global usability.
Phases: Available configurations include both Three-phase and Single-phase.
Connection Symbol: Options include standard Dyn11 and Yyn0, with custom configurations available on demand.
Short-circuit Impedance: Compliant with standard specifications to ensure reliable operation.
Altitude and Temperature: Engineered to perform in conditions up to 1000m altitude and temperatures up to 40°C.
Parameter adjustments are available to meet standard compliance if standard conditions are not present.
The fully sealed oil immersed power transformer from Chaotai Power exemplifies superior engineering with its low loss, quiet operation, and high efficiency. It provides outstanding energy savings and reduces pollution.
This advanced transformer design eliminates the need for a conventional oil conservator. It skillfully adjusts oil volume variations through the corrugated oil tank's elasticity, ensuring the transformer remains isolated from air. This isolation slows oil deterioration and insulation aging, enhancing reliability and removing the need for routine maintenance.
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 prestigious high-tech enterprise dedicated to pioneering advancements in the realm of electrical integration. Boasting over 15 years of industry experience, we pride ourselves on our expert R&D, production, and service teams, committed to excellence every step of the way.
Our diverse product portfolio encompasses cutting-edge high-voltage solid-state soft starters, advanced capacitor cabinets, sophisticated high and low voltage switchgear, innovative gas-insulated switchgear, and robust substations. These products are seamlessly integrated into a myriad of sectors including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, medical and pharmaceutical sectors, municipal commerce, water management, road traffic, and both commercial and residential developments.
At the core of our philosophy lies a dedication to technological innovation and 'smart manufacturing.' We are steadfast in our commitment to infusing high-caliber technical talent into our ranks, enhancing our core competitiveness, and delivering unparalleled value to our clients. Our journey from inception to industry excellence is marked by progress and innovation. Our strategy is built on quality-driven survival, reputation-led development, and efficiency through astute management. With a quality management foundation of 'technology as the guide, standardized management, excellent quality, and customer satisfaction,' we enhance our market standing and aim to set new benchmarks in China's electric power and grid sectors. Integrity, quality, and service are our cornerstones, driving us toward customer satisfaction as our perpetual pursuit. Our goals of excellence, innovation, and brand trustworthiness are unwavering. We extend heartfelt gratitude to our patrons for their unwavering support, and Senhang Technology eagerly anticipates partnering with you for a brighter 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.