SEPARATING SAG EVENTS FROM DATA RECORDED
One of the more powerful features of PQSCADA Sapphire is its wide range of pre-programmed power quality events, plus an extensive selection of existing graphs designed to help visualize your power quality environment. One of the key questions we receive is how do I extract my sags from all the steady state data? How easy is it to do?
PQSCADA Sapphire has two easy ways to retrieve sag data and the first is to create an IEEE 1668 chart. This chart allows you to quickly see all sags as they pertain to the IEEE 1668 standard for any designated time stamp. Below is one month’s data for a Type I, or single phase, sag.
As shown, there are 9 events that occurred during that time period of one month. From here one can double click on a dot and pull up the RMS trend data for that event, such as shown below.
Once the data has been isolated and identified; you can proceed forward as you would with any other investigation and add different types of graphs to your file, such as waveforms, RMS power, or harmonics.
Another way to analyze data is to utilize the event settings and the power quality tab. First click on the system tab and pull up your events as shown below.
As you can see, there are plenty of pre-determined events, plus an option to build custom events. For the first visible event, Dips, you can adjust your depth and duration to the specific values you are looking for. Once you have the settings to your desired levels, you can click on the power quality tab to view events for any time stamp you have data for.
After you have browsed to the power quality tab you will need to set the time stamp for your desired time period. Once you have set the time stamp, you will receive a list of events that have occurred during that time. Simply clicking on them will pull up the events, once again allowing you to customize a report for internal or external use.
Having the data is not enough, being able to quickly identify, find, and present the data is imperative as well. PQSCADA Sapphire performs all the above with simple clicks.