Theory Study And Application Of Ragulating Capacity Of Transformer On Load

This paper puts forward a kind of distribution transformer which supplys the biggest power capacity while oil pump is starting to move and which supplys smaller power with oil pump moving smoothly.Because oil pump have the biggest load torque when it's starting to move and have smaller load torque when it moves smoothly so that make distribution transformer work in a state of "transformer's lower load-carrying" and result in that power waste and active power and reactive power lose and decrease transformer efficiency and increase electrical net loss.Development the transformer's principle is that according to the relationship between transformer's power and loss and between loss and cost use time domain method and frequency domain method to caculate transformer's circuit model and magnetic circuit model proving by simulation and test.Through applying practically make a conclusion that regulating power capacity transformer can supply oil pump power from start to movement and save energy.