Product Description
\ BRIEF INTRODUCTION \
ABOUT THE SRN SERIES HIGH-TEMPERATURE RESISTANT OIL-IMMERSED TRANSFORMER-
CEEG's SRN high-temperature resistant oil-immersed power transformers are suitable for distribution networks with high load rates under high temperatures and places with shock load and continuous overload requirements. Specially built for high-end power supply and steel, coal, chemical, cement, paper, and metallurgy industries. Our SRN series oil-immersed power transformers served in many major industrial projects of famous enterprises like Guangzhou-Zhuhai Railway Co., Ltd., Beijing Shougang International Engineering Technology Co., Ltd., Guiyang Municipal Railway Road Co., Ltd., Heilongjiang Longmei Mining Group Co., Ltd., Guizhou Shuicheng Coal Industry, Heavy Coal Group, Lanzhou Railway Bureau, Liaoning Electric Power Co., Ltd., Shandong Luneng Materials Group Co., Ltd Division, Weiqiao Textile, Shanxi Electric Power Company, Shaanxi Electric Power Company, Northwest Power Grid Co., Ltd companies, etc.
FEATURES
\ FEATURES \
1. STRONG OVERLOAD CAPACITY- DuPont Nomex® paper as the core, using seven-level temperature control technology, and reasonable use of hybrid insulation systems.
2. WIDE RANGE OF APPLICATION- In industries with high ambient temperature or long-term high load operation, it can provide safety, Reliable power supply;
3. LOW MAINTAINENCE COST- Good oxidation resistance, slow aging speed, mechanical characteristics, and electrical More stable performance with a long life.
4. ENERGY SAVING & ENVIRONMENTAL PROTECTION- After the service life, the material can be recovered and recycled without causing pollution.
5. SAFE & RELIABLE- Strong corrosion resistance and waterproof performance, which can maintain safe and reliable long-term operation.
Product Parameters
| Performance parameters of S18-6300~180000/110kV oil-immersed three-phase double-winding off-excitation voltage regulating power transformer (three-level energy efficiency) |
Rated Capacity
kVA |
Voltage combination and tap range |
Vector
Group |
Load loss kW |
load loss kW(75C) |
No-load current% |
Short circuit impedance% |
Transport Package |
HS Code |
high voltage
kV |
High voltage tapping range |
Low voltage kV |
| 6300 |
110 115 121 |
2x2.5% |
6.3 6.6 10.5 |
YNd11 |
5.90 |
33 |
0.62 |
10.5 |
International Wooden Case or According to Client′s requirements |
8504349000 |
| 8000 |
7.10 |
40 |
0.62 |
|
| 10000 |
8.40 |
48 |
0.58 |
|
| 12500 |
9,90 |
56 |
0.58 |
|
| 16000 |
12.00 |
69 |
0.54 |
|
| 20000 |
14.10 |
84 |
0.54 |
|
| 25000 |
16.60 |
99 |
0.50 |
|
| 31500 |
19.70 |
117 |
0.48 |
|
| 40000 |
23.50 |
141 |
0.45 |
|
| 50000 |
28.20 |
166 |
0.42 |
|
| 63000 |
33.30 |
198 |
0.38 |
|
| 75000 |
13.8 15.75 18 21 |
37.80 |
224 |
0.33 |
12~14 |
|
| 90000 |
43.50 |
258 |
0.30 |
|
| 120000 |
54.20 |
320 |
0.27 |
|
| 150000 |
64.10 |
379 |
0.24 |
|
| 180000 |
72.00 |
434 |
0.20 |
|
Our Advantages
Certifications
\ CERTIFICATED & QUALIFIED \
The SRN High-temperature resistant oil-immersed transformer has passed the test of the National Transformer Quality Supervision and Inspection Center, and all indicators have reached the advanced level of domestic and international products. The performance indicators meet the energy efficiency requirements of GB20052-2020 and also won the 3C, PCCC energy-saving certification, ISO-9001, ISO-45001, and ISO-14001 certificates.
CEEG's oil-immersed power transformers have been widely adopted in key projects by customers from all over the world. For example, they have been chosen to serve in the construction projects of Beijing China Coal Electric Co., Ltd., Shenhua United Construction Co., Ltd., and Chongqing Yuzhan Electric Co., Ltd.
\ CORE TECHNOLOGY \
The active part adopts a high-temperature resistant hybrid insulation system, preferably matching parts, truly the same 30 years design of the life-span.
Oil transformer all adopts the basic structural form of traditional transformer. The core is heart-type; the high-voltage winding adopts pancake-type coil; the low-voltage winding adopts wire-wound or foil-type coil according to different capacities. The biggest difference with the traditional transformer is the choice of high-temperature-resistant insulating paper. The insulation structure of 35kV and below oil-immersed power transformer belongs to the mixed insulation system, the wire turn insulation uses high temperature resistant insulating paper, and the insulation material with a lower temperature coefficient is used in the lower temperature parts.
The oil-immersed power transformers use high temperature-resistant insulating paper as insulation material and use different temperature resistant grade insulation materials for different temperature parts according to the temperature field principle, so it has good temperature resistance performance and a large margin in the design.
High-temperature resistant transformers can be safely operated in more than 40 ºC ambient temperature and do not affect their lifespan. It is safe and reliable even when operating at 20% overrated capacity. It provides a good solution to the problem of safe power supply during peak load periods.
Why choose us
\ TECHNICAL ADVANTAGES \
RESEARCH & DEVELOPMENT TEAM - CEEG has established a strong technology R & D team, with technology R & D platforms such as a postdoctoral workstation, Jiangsu power transformation equipment engineering technology research center, Jiangsu Graduate workstation, and Jiangsu technology center, in conjunction with the Institute of electrical engineering, Chinese Academy of Sciences, Southeast University, Nanjing University of Aeronautics and Astronautics, Jiangsu University China University of Mining and technology, and other well-known scientific research institutions and universities jointly carry out a series of technological R&D and innovation.
CLOUD PLATFORM
- It integrates the functions of electromagnetic optimization design, parametric drawing, performance analysis, structural optimization, and automatic drawing of the transformer, so as to realize the sharing of transformer design resources, search, modification, and version control of various data information.
INTELLIGENT OPERATION & MAINTENACE PLATFORM - Online power quality analysis and fault alarm can be realized by collecting key data such as transformer temperature, current, voltage, vibration, and grid harmonic, and can be installed on mobile phones.
\ USE & PACKING \
SERVICE CONDITIONS -
The installation site shall not be flooded by water, the altitude shall not exceed 1000m, and the ambient temperature shall not be higher than 40ºC. The relative humidity is 100%, and the environment is 40ºC to -25ºC (-25ºC requires an on-load tap changer and temperature controller).
PACKAGING & TRANSPORTATION - The products can be partially disassembled and transported (such as on-load tap changer, temperature controller, air cooling device, enclosure, etc. can be packaged separately) or packed as one piece in packaging boxes for transportation.
VISUAL INSPECTION BEFORE INSTALLATION - After opening the package, remove the protective device and check the external conditions, especially paying attention to the mechanical integrity of the coil and iron core, and the bolt fastening at the connection.
INSPECTION BEFORE OPERATION - Measure the DC resistance of high voltage and low voltage windings. Then check the grounding of the iron core to see whether the grounding is reliable and whether foreign matters are overlapping. Last to test the insulation resistance.
ENERGIZING - Before putting into operation, the transformer shall be put into trial operation under no-load, and the protection system shall be checked and adjusted after 3 times of impulse closing.
\ ABOUT CEEG \
3 INDUSTRIAL ZONES
4 FACTORIES
15 OVERSEAS BRANCHES
80+ GLOBAL MARKETS
THIS IS OUR DEVELOPMENT -
Headquartered in Nanjing, CEEG has always been adhering to the core values of "foresight, innovation, and responsibility" since its establishment in 1990, focusing on production and manufacturing for more than 30 years. In years of development, CEEG has Integrated independent research and development, intelligent manufacturing, and smart marketing services.
OUR PRODUCT - Our technical team has continued to explore and innovate boldly, and has successfully developed nearly a hundred products including evaporative transformers, load centers, 35kV amorphous dry transformers, nuclear power transformers, slow harmonic transformers, high-temperature transformers; there are also outstanding players in market segments: traction transformers, variable current explosion-proof transformers, multiple Pulse wave phase shifting, wind power conversion, photovoltaic conversion, three-phase three-column amorphous conversion, intermediate test conversion, data center supercomputing mobile equipment, etc. Among them, the star products of the company are the green and energy-saving "amorphous alloy dry-type transformer", the technology-leading "epoxy cast dry-type transformer", and the safe and reliable "flameproof dry-type transformer for mine use and mobile substation". The technology applied to the production has won more than 70 patent technology qualification honors.
OUR PARTNERS - Our products have been safely operating in major coal groups such as Shenhua Group, Anhui Tongling Mining Group, Pingdingshan Coal Industry Group, Jincheng Coal Industry Group, and Kaolain Group. Many well-known companies such as China Mobile, China Telecom, Inner Mongolia First Machinery, Inner Mongolia Pingzhuang Energy, and Jialing Motor also have established good partnerships with us. We also established long-term strategic cooperative relations with excellent enterprises all over the world, and our business partners include many great companies such as DuPont, Siemens, Hitachi Metals, and ABB. Our power transformers have been sold to over 80 countries and regions and got high recognition from customers overseas.
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