SYSTEM FAILURE DIAGNOSIS AND FORECASTING Electrocontact FIRES

摘要

The invention relates to the field of elektropozharnoy security and electricity, namely to devices electrocontact diagnostics of failures and prevent fires. diagnosing electric contact failure system and prediction of fires, comprising an electric power line connected thereto electrical and control device including a measuring unit, a generating a frequency spectrum, the output of which is linked to the accumulation unit via the series-connected blocks amplification and rectification, wherein the storage unit output is connected to input of the comparator, the first output of which is connected to the actuating body disable e. network through the block formation of the team, and the entrance to the block of accumulation by the delay unit coupled to the second output of the comparison, additionally introduced units transmit and receive data on the electrical network, digital-to-analog converter, analog-to-digital converters, digital inputs are connected to the current transformers connected to the each electrical power circuits and the outputs - to the data blocks of the electrical network, the output digital-to-analog converter connected to the input of the multiplexer and input - with the output of the reception unit and nnyh on electric network having an input connected to the electrical power line. The system allows to increase the reliability in the event of simultaneous power failure in two or more electrical systems, as well as quickly identify such failures in a particular installation.