SIGR quantifies the energy and customer service quality through the storage, treatment and analysis of every technical parameter in distribution substations, for instance, the key indicators for the energy quality are the average and minimum power factors, the minimum and maximum frequency, the voltage sags and overvoltage and the voltage and current harmonic distortion rates.
Regarding the service quality monitoring, several indicators are evaluated such as the number and duration of the interruptions, the availability factor and the system’s average frequency of interruptions, the average time span, the average reset time, the average frequency of short interruptions and the amount of energy not distributed, equivalent interruption times, installed capacity equivalent interruption times, peak load and capacity factor.
SIGR can be integrated with billing systems, allowing to interconnect billing information with energy losses data, permitting the quantification of the non-technical energy losses, through the detection, computation and exact location, in the grid, of non-technical losses through the cross-checking between the costumers billing information, the real energy consumption and the geo-referencing of assets available in the database.
Furthermore, SIGR, taking advantage of the referred cross-checking, makes possible the selective load shedding.
Example of substation status information and electrical power quality monitoring: