Not from a technical point of view, but from the perspective of market demand and corporate integrity, international standards and design specifications do not prohibit the use of transformers with aluminum coils, which are larger than transformers with copper coils.
Some people say that the aluminum transformer is not easy to be damaged, but the aluminum wire transformer purchased by our company has been used for the longest 7 or 8 years without any problems. For a purchase, the key aluminum wire transformer is much cheaper than the copper wire transformer, I am a little confused, why is the good thing so cheap?
Before the transformer leaves the factory, the transformer manufacturer will conduct certain tests on the quality, function and service life of the transformer. General transformer experiments include two types, factory test and type test. A representative test carried out by the transformer type laboratory to verify whether the transformer conforms to the specified technical conditions. So, what tests are performed on the transformer before it leaves the factory?
Recently, a batch of oil-immersed transformers from our company have been exported to Africa. The high-voltage side of the transformer is 35kV, the low-voltage side is 0.4kV, and the capacity is 25kva. The production is relatively difficult, but our workers have successfully completed and delivered this batch of transformers with their skilled production experience and technology. Order, the transformer test pass rate is 100%.
This paper details the analysis and solutions for the damage of distribution transformers, including the common faults and abnormal phenomena of distribution transformers in power transmission and operation, the causes of damage to distribution transformers (especially judging faults from the sound of transformers), and the damage to distribution transformers. solution.