oil filled transformer, IEC standard, China manufacturer

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.