Reasons for electrical current transformer burnt during use

The Electrical Current Transformer is open for a second time, generating high voltage, and the Electrical Current Transformer is burned out; if the use time is too long, the insulation is aging, local breakdown or discharge occurs, and overvoltage is generated, causing 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 of the Electrical Current Transformer; user overload operation for a long time, causing the Electrical Current Transformer to heat and burn, etc.