Analysis of Voltage Phase Anomaly at Closing Point of 10 kV Distribution Network Lines
10 kV distribution network lines can improve power supply reliability by closed loop operation.Before closing loop,it is necessary to perform phase verification on the line ends at closing point,and only when voltage amplitude and phase angle difference of the phase verification results meet the requirements can the closing loop operation be permitted.A case analysis was conducted in this work on the abnormal results of 10 kV line voltage phase angle difference between two lines in an actual regional distribution network,in which a method based on phasor analysis was proposed,and the correctness of the analysis results was verified.Rectification measures were then proposed for the abnormal results,achie-ving the goal of closed loop operation of the 10 kV line,and providing useful information for coping with phase anomaly of the distribution network lines.
distribution network lineclosed loop operationvoltage phase verification
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