CONNECTION ERROR DETECTING APPARATUS AND METHOD WHICH DETECT A CONNECTION ERROR IN A SMART METER

摘要

Provided are a connection error detecting apparatus and method. The connection error detecting apparatus, which detects connection errors for each rating of a smart meter, comprises: a parameter calculating unit for calculating connection error detecting parameters including an actual three-phase voltage value, an actual three-phase current value, an effective amount of three-phase power, and an ineffective amount of three-phase power; and a connection error determining unit for setting connection error criteria for detecting connection errors for each rating of the smart meter, and detecting the connection errors for each rating by determining whether or not any one of the connection error detecting parameters satisfies the connection error criteria.

主权项

1. A connection error detection device for detecting a connection error for each rating in a smart meter, comprising:
a parameter calculation unit configured to calculate connection error detection parameters including voltage root-mean-square (RMS) values, current RMS values, active energy values and reactive energy values for three phases; and a connection error determination unit configured to set a connection error detection criterion for detecting a connection error for each rating in the smart meter, and to detect the connection error for each rating by determining whether any one of the connection error detection parameters meets the connection error detection criterion, wherein the connection error detection criterion is set to any one of a case where active energy values for any one or more phases are measured in a negative direction, a case where a voltage RMS value for any one phase is a first percentage or less or a second percentage or more of an average rated voltage for remaining two phases, the second percentage being higher than the first percentage, and a case where active and reactive energy values for any one or more phases are all measured in a positive direction.