FIELD: electricity.
SUBSTANCE: device and methods of protection at the input of the power converters provide a power converter including an output of an input signal, a first output signal at the first output of the output signal and a controller. The controller is made with the possibility of switching the first output signal from the first value to the second value, measuring the voltage at the output of the input signal depending on time, setting a flag to the first flag value, if measured voltage drops below the preset value within the first preset time interval after switching the first output signal from the first value to the second value, in other cases, setting the flag to the second flag value and storing the flag in the memory. There are also numerous other aspects performed.
EFFECT: provision of power converter protection in catastrophic internal failures such as, excessive power loss, excessive levels of reactive input current, generation of electric arc.
24 cl, 3 dwg
