Basic Info.
Model NO.
oil-immersed type transformer
Application
Power, Electronic, Rectifier
Certification
ISO9001-2000, ISO9001, CCC
Usage
Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
Frequency Characteristics
Transport Package
Wooden Case / According Customers′ Demands
Specification
1350*1680*2400
Product Description
High-Temperature Resistance: High-temperature resistant products can operate at 100% full load under an ambient temperature of 40°C, while traditional oil-immersed transformers can only operate at 81% load under the same ambient temperature, posing a risk of high-temperature tripping. High temperature-resistant liquid-filled transformers can operate at full load under high-temperature conditions, ensuring the safety and reliability of power supply in industries where ambient temperatures are high in summer and long-term high-load operation is required.
Low Maintenance Cost: Conventional oil-immersed transformers generally use mineral oil, requiring oil testing and filtration every two to three years. However, high-temperature resistant liquid has superior oxidation resistance and a slower aging rate and requires testing only once every ten years. The coils are insulated with unique NOMEX® insulation paper, providing more stable mechanical and electrical performance under high temperatures. NOMEX® insulation material has a long lifespan at higher temperatures.
Energy-saving and Environmental Protection: After the service life of high-temperature resistant transformers, materials are recycled and reused, meeting the requirements of sustainable development and environmental protection. NOMEX insulation paper can biodegrade after its service life, and the high temperature-resistant oil operates at a much lower temperature than its temperature resistance level, making it recyclable after treatment. The treated waste can be decomposed by soil microorganisms without toxicity, thus avoiding long-term accumulation and environmental pollution.
Safety and Reliability: For specific customers in industries such as cement, steel, coal, and papermaking, high-temperature-resistant products are designed considering the fluctuation and instability of their loads. The insulation system of the product will not be damaged under such conditions, ensuring safe and reliable long-term operation.
SRN-315~75000/35 High-Temperature Resistant Unexcited Voltage Regulating Transformers |
Item | Voltage Ratio | Connection Section | No-Load Loss
(KW) | Load Loss
(KW) 75ºC | No-Load Current
(%) | Short Circuit Impedance
(%) |
Rated Capacity
(KVA) | High Voltage
(KV) | Low Voltage
(KV) | Tapping Range |
315 | 35
38 | ±5% | 0.4 | Yyno | 0.49 | 4.76 | 1.40 | 6.50 |
400 | 0.58 | 5.75 | 1.30 |
500 | 0.69 | 6.92 | 1.20 |
630 | 0.83 | 7.87 | 1.10 |
800 | 0.98 | 9.41 | 1.00 |
1000 | 1.15 | 11.54 | 1.00 |
1250 | 1.41 | 13.94 | 0.90 |
1600 | 1.70 | 16.67 | 0.80 |
800 | 3.15
3.3
6.3
6.6
10.5
11 | Yd11 | 0.98 | 9.41 | 1.00 |
1000 | 1.15 | 11.54 | 1.00 |
1250 | 1.41 | 13.94 | 0.90 |
1600 | 1.70 | 16.67 | 0.80 |
2000 | 2.18 | 18.38 | 0.70 |
2500 | 2.56 | 19.67 | 0.60 |
3150 | ±5%
±2 *2.5% | 3.04 | 23.09 | 0.56 | 7.00 |
4000 | 3.62 | 27.36 | 0.56 |
5000 | 4.32 | 31.38 | 0.48 |
6300 | 5.25 | 35.06 | 0.48 | 7.50 |
8000 | YNd11 | 7.20 | 38.48 | 0.42 |
10000 | 8.70 | 45.32 | 0.42 |
12500 | 10.08 | 53.87 | 0.40 | 8.00 |
16000 | 12.16 | 65.84 | 0.40 |
20000 | 14.40 | 79.52 | 0.40 |
25000 | 17.02 | 94.05 | 0.32 |
31500 | 20.22 | 112.86 | 0.32 |
40000 | 25.90 | 150.00 | 0.28 |
50000 | 29.40 | 210.00 | 0.28 | 8.00
10.50 |
63000 | 31.20 | 250.00 | 0.20 |
75000 | 33.40 | 300.00 | 0.20 |
SRN-2000~40000/35 High-temperature Resistant On-load Voltage Regulating Transformers |
Item | Voltage Ratio | Connection Section | No-Load Loss
(KW) | Load Loss
(KW) 75ºC | No-Load Current
(%) | Short Circuit Impedance
(%) |
Rated Capacity
(KVA) | High Voltage
(KV) | Low Voltage
(KV) | Tapping Range |
2000 | 35
38 | ±3*2.5% | 3.15
3.3
6.3
6.6
10.5
11 | Yd11 | 2.30 | 19.27 | 0.80 | 6.5 |
2500 | 2.72 | 20.64 | 0.80 |
3150 | 3.23 | 24.71 | 0.72 | 7 |
4000 | 3.87 | 29.16 | 0.72 |
5000 | 4.64 | 34.20 | 0.68 |
6300 | 5.63 | 36.77 | 0.68 | 7.5 |
8000 | YNd11 | 7.87 | 40.61 | 0.60 |
10000 | 9.28 | 48.05 | 0.60 | 8 |
12500 | 10.94 | 56.86 | 0.56 |
16000 | 13.17 | 70.32 | 0.54 |
20000 | 15.57 | 82.78 | 0.54 |
25000 | 17.80 | 98.80 | 0.45 |
31500 | 21.30 | 121.90 | 0.40 |
40000 | 26.20 | 157.50 | 0.35 |
S(F)RN-110KV 6300~90000KVA Dual-winding Unexcited Voltage Regulating Transformers |
Item | Voltage Ratio | Connection Section | No-Load Loss
(KW) | Load Loss
(KW) 75ºC | No-Load Current
(%) | Short Circuit Impedance
(%) |
Rated Capacity
(KVA) | High Voltage
(KV) | Low Voltage
(KV) | Tapping Range |
6300 | 110
121 | ±2*2.5 | 6.3
6.6
10.5
11 | YNd11 | 6.9 | 34.9 | 0.51 | 10.5 |
8000 | 8.4 | 42.5 | 0.47 |
10000 | 9.9 | 50.2 | 0.43 |
12500 | 11.7 | 59.5 | 0.38 |
16000 | 14.1 | 73.1 | 0.35 |
20000 | 16.5 | 88.4 | 0.32 |
25000 | 19.5 | 104.6 | 0.3 |
31500 | 23.1 | 125.8 | 0.28 |
40000 | 27.6 | 147.9 | 0.25 |
50000 | 33 | 183.6 | 0.22 |
63000 | 39 | 221 | 0.2 |
90000 | 51 | 289 | 0.2 |
Note: maximum current tap is -5% |
S(F)RNZ-110KV 6300~63000KVA Three Windings Unexcited Voltage Regulating Transformers |
Item | Voltage Ratio | Connection Section | No-Load Loss
(KW) | Load Loss
(KW) 75ºC | No-Load Current
(%) | Step-up |
Rated Capacity
(KVA) | High Voltage
(KV) | Low Voltage
(KV) | Tapping Range |
6300 | 110±8*1.25% | 35
38.5 | 6.3
6.6
10.5
11 | YNyn0
d11 | 9 | 45 | 0.62 | High-Medium
10.5
High-Low
17-18
Medium-Low
6.5 |
8000 | 10.8 | 53.6 | 0.6 |
10000 | 12.8 | 62.9 | 0.57 |
12500 | 15.1 | 74 | 0.55 |
16000 | 18.2 | 90.1 | 0.51 |
20000 | 21.5 | 106.3 | 0.51 |
25000 | 25.4 | 125.8 | 0.46 |
31500 | 30.2 | 148.8 | 0.42 |
40000 | 36.1 | 178.5 | 0.36 |
50000 | 42.7 | 212.5 | 0.32 |
63000 | 50.8 | 255 | 0.26 |
1. Reliability of Insulation Technology
Our research spans from initial two-dimensional electric field simulations, three-dimensional electric field measurements, and impact characteristic measurements to later-stage theoretical analysis and simulated experiments on the main insulation, longitudinal insulation, end insulation, insulation of leads, and coil withstand voltage characteristics of transformers. Through years of verification using various methods, we ensure the reliability of transformer insulation.
2. Calculation of leakage magnetic field and reduction of stray loss
Dedicate specialized efforts to calculating and measuring transformer leakage magnetic fields. The research includes shielding structures for leakage magnetic fields, calculations for transformer dynamics and thermal stability, and improvements in transformer dynamic and thermal stability to guarantee accurate calculations and reduced stray losses, thereby enhancing transformer dynamic stability.
3. Precise Analysis of Coil Temperature Fields
Collaborating with numerous domestic universities, we jointly developed programs for calculating coil temperature fields. These programs calculate loss distribution in coils, including resistive losses, eddy current losses in different directions, and circulating losses between parallel conductors, as well as flow field cooling conditions. This enables the accurate calculation of coil temperature distribution and hotspot temperature rises, allowing us to take measures to effectively control hotspot temperature rises that impact transformer lifespan.
4. Reducing Local Discharge in Transformers
Electric field strengths at various locations have undergone numerical analysis during the design phase and have been strictly controlled. Additionally, compliance with manufacturing quality, the reliability of processing methods, and the reasonableness of operating techniques effectively control local discharges in transformers.
CEEG is a professional transformer manufacturer!
Address:
No. 22 Chengxin Road, Yuhua, Nanjing, Jiangsu, China
Business Type:
Manufacturer/Factory
Business Range:
Electrical & Electronics, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001
Company Introduction:
CEEG is a Group Company, who has more than 30 years of experience in manufacturing electrical equipments, including transformers, solar panels, solar inverters, solar batteries, and solar integrated storage systems. And CEEG is the TOP10 transformers company in China. Most of our partners are large state-owned enterprises including China Mobile/ Unicom/Telecom, Aircraft carrier base of Hainan and Qingdao, Metro Company of many cities. We also participated in many large projects in many different fields including aerospaces and electricity. Such as: Shenzhou V Manned Spaceflight Project, Beijing International Airport, Beijing Olympic Sports Center of Wukesong, Shanghai F1 Circuit. Actually our products are sold all over the world.
Regarding solar panels we have rich experience, and also have many professional certifications including TUV, CE, Inmentro and so on.
We are leading and well-known photovoltaic manufacturer, was listed on NASDAQ in 2007, and has been long term listed on TIer 1 list since 2012 year.
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