DEVICE FOR MONITORING DISCHARGE PROCESSES IN HIGH-VOLTAGE POWER EQUIPMENT Russian patent published in 2010 - IPC G01R31/08 

FIELD: measurement technique.

SUBSTANCE: invention refers to instrumentation technique with protection elements and can be used to record partial discharges incepted in insulation of high-voltage power equipment and to determine their level. Offered device for monitoring discharge processes in high-voltage power equipment contains four transmitting devices and receiving-analysing device. Each transmitting device includes piezoelectric sensor, pre-amplifier, radiomodule with antenna, detector of acoustic signal level, analog-to-digital converter, reference voltage unit, control unit and power supply unit. Receiving-analysing device contains transceiving module with radio antenna, unit for control of discharge process monitoring modes, unit for determination of data transmission channel number, event memory unit, unit for perceiving initial signs of discharge process, unit for comparing patterns of discharge process, library of discharge process patterns, unit for signal shape analysis and data display and signalisation unit.

EFFECT: improvement of quality of acoustic signal from partial discharges incepted in high-voltage equipment insulation analysis.

2 cl, 2 dwg