Understanding the IEC Standard for Oil filled transformers: What You Need to Know Before Purchasing from a Chinese Manufacturer
When it comes to purchasing Oil filled transformers from a Chinese manufacturer, it is important to understand the IEC standard. The International Electrotechnical Commission (IEC) is the global standard for electrical equipment and components, and it sets the standards for Oil filled transformers. By understanding the IEC standard, you can ensure that you are purchasing a quality product that meets the highest safety and performance standards.
The IEC standard for Oil filled transformers covers a wide range of topics, including design, construction, testing, and maintenance. It outlines the requirements for the design and construction of the transformer, including the materials used, the insulation system, and the cooling system. It also outlines the testing requirements for the transformer, including the electrical tests, the mechanical tests, and the environmental tests. Finally, it outlines the maintenance requirements for the transformer, including the inspection and maintenance of the transformer and its components.
When purchasing an Oil filled transformer from a Chinese manufacturer, it is important to ensure that the transformer meets the IEC standard. This can be done by requesting a copy of the manufacturer’s quality assurance certificate, which should include a statement that the transformer meets the IEC standard. Additionally, it is important to ask for a copy of the transformer’s test report, which should include the results of the electrical, mechanical, and environmental tests.
Type
Rated capacity （KVA）
Voltage combination（KV）
No-load losses（W）
Load losses（W）
No-load current (%)
Short-circuit impedance (%)
S11-630
630
33,35/6.3,6.6,10.5,11
830
7870
1.10
6.5
S11-800
800
33,35/6.3,6.6,10.5,11
980
9410
1.00
6.5
S11-1000
1000
33,35/6.3,6.6,10.5,11
1150
11540
1.00
6.5
S11-1250
1250
33,35/6.3,6.6,10.5,11
1410
13940
0.90
6.5
S11-1600
1600
33,35/6.3,6.6,10.5,11
1700
16670
0.80
6.5
S11-2000
2000
33,35/6.3,6.6,10.5,11
2180
18380
0.70
6.5
S11-2500
2500
33,35/6.3,6.6,10.5,11
2560
19670
0.60
6.5
S11-3150
3150
33,35/6.3,6.6,10.5,11
3040
23090
0.56
7.0
S11-4000
4000
33,35/6.3,6.6,10.5,11
3620
27360
0.56
7.0
S11-5000
5000
33,35/6.3,6.6,10.5,11
4320
31380
0.48
7.0
S11-6300
6300
33,35/6.3,6.6,10.5,11
5250
35060
0.48
7.5
S11-8000
8000
33,35/6.3,6.6,10.5,11
7200
38500
0.42
7.5
S11-10000
10000
33,35/6.3,6.6,10.5,11
8700
45300
0.42
7.5
S11-12500
12500
33,35/6.3,6.6,10.5,11
10080
53900
0.40
8.0
S11-16000
16000
33,35/6.3,6.6,10.5,11
12160
65800
0.40
8.0
S11-20000
20000
33,35/6.3,6.6,10.5,11
14400
79500
0.40
8.0
S11-25000
25000
33,35/6.3,6.6,10.5,11
17020
94100
0.32
8.0
S11-31500
31500
33,35/6.3,6.6,10.5,11
20220
112900
0.32
8.0
By understanding the IEC standard for Oil filled transformers, you can ensure that you are purchasing a quality product that meets the highest safety and performance standards. This will help to ensure that your transformer will provide reliable and efficient service for many years to come. With the right knowledge and research, you can be confident that you are making a wise investment when purchasing an Oil filled transformer from a Chinese manufacturer.
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When purchasing an Oil filled transformer from a Chinese manufacturer, it is important to ensure that the transformer meets the IEC standard. This can be done by requesting a copy of the manufacturer’s quality assurance certificate, which should include a statement that the transformer meets the IEC standard. Additionally, it is important to ask for a copy of the transformer’s test report, which should include the results of the electrical, mechanical, and environmental tests.
