Method of automatically monitoring resident three phase meter metering faults

The invention discloses a method of automatically monitoring resident three phase meter metering faults, comprising the steps of: additionally collecting voltage, current, and voltage loss accumulation time of a three phase meter; collecting the voltage, current, and voltage loss accumulation time of the three phase meter at fixed time and for fixed times; storing collected data of each time in a real time data mode; only reserving a piece of point data, and covering the front point data by subsequent point data, wherein if subsequent collection fails, a last time of collection shall prevail, and supplementary sampling is not carried out if each time of collection fails; clearing the collected data at fixed time each day; after collection each day, a main station copying and reading the voltage, current, and voltage loss accumulation time information reserved by a concentrator, and directly discovering abnormal meters according to an analysis method for a specific power transformer meter. The method requires no additional devices, does not influence daily freezing copying and reading and remote power stopping, and can directly discover abnormal resident three phase meters when transformer zone line loss is abnormal, thereby automatically monitoring and analyzing three phase meter metering faults.