Causes of Electrical Current Transformer burned during use

There are many reasons for the burning of the Electrical Current Transformer, the common ones are the following. The Electrical Current Transformer is opened for a second time, which generates high voltage, which causes the Electrical Current Transformer to burn out; if the use time is too long, the insulation is aging, local breakdown or discharge occurs, and overvoltage is generated, which causes the Electrical Current Transformer to heat and burn out; the Electrical Current Transformer is connected to aluminum at one time Excessive oxidation of the row contact surface, excessive contact resistance, heating, and burning out of the Electrical Current Transformer; user overload operation for a long time, causing the Electrical Current Transformer to heat and burn out, etc.