Method for calculating load components of three-phase four-wire system household meter and related device thereof

The invention discloses a method for calculating load components of a three-phase four-wire system household meter and a related device thereof, and the method comprises the steps: obtaining single-phase total active power data of a low-voltage outgoing line position of a transformer in different time periods and three-phase total active power data of each household meter in a transformer district, the users corresponding to the household meters in the transformer district being three-phase four-wire system users; on the basis of the single-phase total active data and the three-phase total active data of each household meter, calculating the load component distribution situation of each household meter according to the Kirhhoff's current law, and the technical problems that in the prior art, an instrument is adopted for field detection to obtain the distribution situation of the load components of the household meters, electric shock risks exist, time and labor are consumed, and omission is likely to happen a