CDT channel fault alarm system

Abstract

The invention discloses a CDT channel fault alarm system, which comprises a master station communication machine, a sub-station communication machine and a master station terminal, wherein the master station communication machine and the sub-station communication machine are provided with a master channel and a spare channel therebetween, the master station and the spare channel are both composed of an uplink channel and a downlink channel, the two downlink channels are connected to a fault online detection device and then sequentially connected to an integrated automatic device and the sub-station communication machine, and the integrated automatic device transmits online detection data to the sub-station communication machine and the master station communication machine and finally transmits the online detection data to the master station terminal so as to provide for a dispatcher to record, alarm and process. The CDT channel fault alarm system disclosed by the invention can monitor the operating state of the downlink channels in real time, discovers faults in the downlink channels timely, accurately judges whether the faults are interruptions or error codes, and does not affect remote control and normal data transmission, thereby providing more guarantee for the safety of a power grid and the quality of electric energy.

Description

technical field [0001] The invention relates to a power safety monitoring system, in particular to a CDT channel failure alarm system. Background technique [0002] Smart substations are developed on the basis of traditional integrated substations and digital substations, and realize the informatization, automation and interactive management of the power grid. After the substation is unattended, the reliability of the remote control directly affects the safe, economical and reliable operation of the power grid. At present, when the dispatcher remotely controls the substation equipment, sometimes the telemetry and remote signal data are correct, the remote control returns to school overtime, and the remote control cannot be performed. The operation team needs to rush to the site for operation. in an uncontrollable state. The correct telemetry and remote signaling data indicate that the substation is working and the uplink channel is working normally, and the return to schoo...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two current solutions. One is to use software instead of manual remote control to judge the failure of the downlink channel. The hardware or software method detects whether there is a sync word in the downlink channel to determine whether the channel is interrupted, but it cannot accurately determine whether it is an interruption or a bit error

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