Event Support

The IEC61850 device generates Fault events whenever the value of the frequency, voltage, or current goes beyond the configured limit. The type of Fault events that generates depend on the configuration in the IEC61850 device. Depending on the type of faults, the events can be classified majorly as follows:

  • Voltage Dip: the value of voltage goes below the configured lower limit
  • Voltage Swell: the value of voltage goes above the configured upper limit
  • Low Current: the value of current goes below the configured lower limit
  • High Current: the value of current goes above the configured upper limit
  • Under Frequency: the value of frequency goes below the configured lower limit
  • Over Frequency: the value of frequency goes above the configured upper limit

To get information regarding the power quality measurements within the device, you must download the PQDIF file which is a binary file format. The PQDIF files are downloaded according to the time interval specified in the Files Download Interval property in the Extended Operation tab. The default time interval is 1 hour. In order to download the PQDIF files, you must enable the Download Files property in the Extended Operation tab. You can access this file from the following location in your customer project, \data\IEC61850\DR\<Device cns path>\OtherFiles.

Whenever there is a fault in the IEC61850 device, a corresponding Comtrade file having either of the following file formats (.HDR, .CFG, or .DAT) is generated if the device supports the generation of the file. These Comtrade fault files start downloading at the following location as soon as the connection with the device is established, \data\IEC61850\DR\<Device cns path>\FaultFiles.

For Comtrade files, you need to install the comtrade viewer that is available at the path …\AdditionalSW\ComtradeViewer on the distribution media.

For PQDiff files we recommend PQDiffractor, which can be downloaded from http://www.pqview.com/pqdiffractor/.

Alert Generation on the basis of HDR file

The HDR file is a Fault file that is generated when a fault occurs in the IEC61850 device. To support the alert generation in the management station using the HDR file, you must select the Power Quality Monitoring and Has HDR file options for the object model in the respective library in the Import Rules application. The HDR file provides information regarding the cause of the fault, the fault number, the time when the fault was triggered and so on. After the HDR file is generated in the IEC61850 device, it is downloaded at the following location in your customer project, \data\IEC61850\DR\<Device cns path>\FaultFiles. Thereafter, the contents of the file are sent as a Request in order to parse its contents. To parse this file, you must write a Java script in the Scripting EM, which you must install, along with the installation of the Management Station. After the contents of the HDR file are parsed by the script, a response is generated and the fault alarm displays in the Alarm Status window. This alarm can only be acknowledged; it cannot be reset.

Alert Generation without an HDR file

In this case, whenever a fault triggers in the IEC61850 device, the Value.info.FaultNumber property of the object model is incremented and an event is generated. The Fault files (Comtrade files) are downloaded at a default interval of 5000 milliseconds. You can change this default value by updating the value of the Value.info.FaultFilePollInterval property.