What type of data quality problems does one typically encounter with such a system?
There are two main types of problems associated with data validation: First, there is a data loss problem associated with network problems such as bandwidth limitations, collisions, misrouting, maintenance outages, and equipment breakdown to name a few. There is not much one can do about this other than to report it to IT for review and repair. The other problem is measurement data validation which has to do with obtaining inaccurate information such as incorrect resistor shunts as well as incorrect CT and PT rations. This also includes larger inaccuracies, such as 120, due to incorrect wiring errors or labeling inconsistencies in what is called ‘Phase A’, ‘Phase B’ and ‘Phase C’ across utilities. The latter type will take time to correct and may have to involve station technicians at a particular site and even sometimes the engineering department. If this data is also available through the SCADA system the two values should be compared in order to achieve some degree of validation. Fi
