![]() Given that transformers are so robust and reliable, owners and insurers are often surprised when a transformer fails, but we all know nothing lasts forever. However, anyone with experience in electrical power transmission and distribution has seen transformer failures. It is not unknown in the electric utility industry to see a transformer in service for 50 years or more. It is so reliable, strong, and certain." It handles with such ease, certainty, and economy vast loads of energy that are instantly given to or taken from it. It so puts to shame all mechanical attempts at regulation. "I have a very personal affection for a transformer." "It is such a complete and simple solution for a difficult problem. On the robustness of the transformer, he wrote: William Stanley, working for Westinghouse, built the first reliable commercial transformer in 1886. The essential core (no pun intended) of the transformer has no moving parts (large power transformers may include cooling fans, oil pumps, and load tap changers). The windings and the core are immersed in oil and enclosed in a steel tank (typical for outdoor power transformers, which will be the focus of this article). A transformer is basically two sets of wires (the windings) wrapped around a steel or iron core (see schematic in Figure 1). Transformers are among the most reliable and robust elements in the electric utility system. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |