On-Line Monitoring Method of Power Distribution Equipment Backup Power Supply Operation Status Based on Third Harmonic
In view of the existing monitoring methods in monitoring the operation status of backup power supply of power distribution equipment,there is a big difference between the monitoring data and the actual situation,which affects the monitoring accuracy,the third harmonic is introduced to carry out the design and research of the online monitoring method of backup power supply of power distribution equipment.Combined with the third harmonic theory,measure the impedance of backup power supply of distribution equipment.During the operation of backup power supply,monitor the running state of power supply online to determine whether the state is one of equal charging state,floating charging state and discharge state,and timely alarm the cases that do not belong to the above three states.Through comparative experiments,it is proved that the monitoring data obtained by the new monitoring method is consistent with the actual application,and the change curve of the charging power in the operation of the backup power supply can be accurately drawn according to the monitoring data,providing reliable conditions for the operation and maintenance management of the backup power supply.
third harmonicbackup power supplyon-line monitoringoperation statuspower distribution equipment
NETL
NSTL
万方数据
