Figure 1: Load Masking Table 1: Operational Need for Real Time Data Operational Intended Data Data Need for Data Frequency Reliability Concern and Data Need Utility Need Frequency Related Need Personnel Need/Scan Rate Moving Grid 1547 Within Operators need to know Allowance of DER Electrical Load Operators Standard Seconds full electrical load served projects to remain on line Between immediately served prior during circuit switching Electrical (active, to switching (switching is and to ensure that the Circuits reactive transferring the electrical electrical load can be (Operating power, load on one circuit to served and ensuring that Switching) voltage, another circuit) to make electrical configuration appropriate circuit does not contribute to an transfer decisions electrical overload or maintaining safety and over-voltages the reliability switching is performed System Grid 1547 Within In the event of an outage Inability to reconfigure Diagnostics for Operators Standard seconds (planned or unplanned), the system as needed can Grid Outages operators need to create or prolong system (active, identify what electrical issues such as overloads reactive load and generation was or over voltages if load or immediately served prior generation was different voltage, to the event occurring in than expected order to reconfigure the distribution grid to meet load requirements Circuit Grid 1547 Within When an electrical feeder Inability to configure the Automatic Operators Standard seconds experiences a system system as needed can disturbance and DERs as create system issues such (active, designed trips offline, as overload or over reactive when restoration occurs voltages and DERs do not voltage, immediately as designed, operators must be able to aware of the intermittent masked load Customer Grid 1547 Within When an electrical feeder Customers can request Maintenance Operators Standard seconds experiences a system disconnect / reconnect to and Related disturbance, the need for perform system Load (active, restoration requires maintenance and would reactive operators to identify have the ability to
Figure 1: Load Masking Table 1: Operational Need for Real Time Data Operational Data Need Intended Utility Personnel Data Need Data Frequency Need/Scan Rate Need for Data Frequency Reliability Concern and Related Need Moving Electrical Load Between Electrical Circuits (Operating Switching) Grid Operators 1547 Standard (active, reactive power, voltage, Within Seconds Operators need to know full electrical load served immediately served prior to switching (switching is transferring the electrical load on one circuit to another circuit) to make appropriate circuit transfer decisions maintaining safety and reliability Allowance of DER projects to remain on line during circuit switching and to ensure that the electrical load can be served and ensuring that electrical configuration does not contribute to an electrical overload or over-voltages the switching is performed System Diagnostics for Grid Outages Grid Operators 1547 Standard (active, reactive voltage, Within seconds In the event of an outage (planned or unplanned), operators need to identify what electrical load and generation was immediately served prior to the event occurring in order to reconfigure the distribution grid to meet load requirements Inability to reconfigure the system as needed can create or prolong system issues such as overloads or over voltages if load or generation was different than expected Circuit Automatic Grid Operators 1547 Standard (active, reactive voltage, Within seconds When an electrical feeder experiences a system disturbance and DERs as designed trips offline, when restoration occurs and DERs do not immediately as designed, operators must be able to aware of the intermittent masked load Inability to configure the system as needed can create system issues such as overload or over voltages Customer Maintenance and Related Load Grid Operators 1547 Standard (active, reactive Within seconds When an electrical feeder experiences a system disturbance, the need for restoration requires operators to identify Customers can request disconnect / reconnect to perform system maintenance and would have the ability to
R1707007WorkGroup1Report.docx