METHOD AND SYSTEM TO MONITOR PARTIAL DISCHARGES Russian patent published in 2014 - IPC G01R31/12 

FIELD: electricity.

SUBSTANCE: pulse is received from an electric system. They decide whether a pulse is the noise or a duplicated signal; if the pulse is the noise or a duplicated signal, this pulse is rejected. The pulse is broken into two or more frequency components. These two or more frequency components are normalised to the type of the maximum level. Two or more normalised frequency components related to the received pulse are compared with other saved multitude of normalised preset frequency components related to other pulses, for identification of similar pulses that indicate the available state of rejection. If the pulse is identified as the pulse indicating the available state of rejection, data is saved in the data base, connecting the pulse with two or more normalised frequency components and the available state of rejection. A spectrum of the pulse rejections is grouped with similar normalised frequency components in the scattering diagram saved in the data base. If normalised frequency components of the pulse are not similar to the normalised frequency components of the current group, they create a new group of the spectrum of the pulse rejections saved in the data base. If the pulse is identified as indicating the available state of rejection, the user is notified on the availability of the state of rejection. Also the system is stated, which realises the specified method.

EFFECT: possibility to identify characteristics of partial discharges.

10 cl, 22 dwg, 1 dwg