Schweitzer Engineering Laboratories SEL-751 - Figure 10.15 Sample HIF COMTRADE.HDR Header File; Figure 10.16 Sample HIF COMTRADE.CFG Configuration File Data

10.35
Date Code 20170927 Instruction Manual SEL-751 Relay
Analyzing Events
High-Impedance Fault (HIF) Event Reporting
report has finished collecting. The relay does not generate additional event
reports for triggering conditions that follow the initial triggering condition and
are within the same report.
The number of event reports the relay shall be able to store depends on the
HIFLER setting at the rate of 1 sample every 2 cycles. For example, if the
HIFLER setting is 10 minutes, then the relay should be able to store at least
four back-to-back event reports. See Retrieving Event Reports Via Ethernet
File Transfer on page 10.18 for details on retrieving compressed events via
FTP or MMS File transfer.
High-Impedance Fault
COMTRADE File
Format Reports
The SEL-751 stores high-impedance fault oscillography in binary format and
uses COMTRADE file types to output these data:
➤ .HDR–header file
➤ .CFG–configuration file
➤ .DAT–data file
The .HDR file contains summary information about the event in ASCII
format. The .CFG file is an ASCII configuration file that describes the layout
of the .DAT file. The .DAT file is in binary format and contains the values for
each input channel for each sample in the record. These data conform to the
IEEE C37.111-1999 COMTRADE standard.
.HDR File
The .HDR file contains the output of the HIF summary command (SUM HIF)
and settings relevant to the high-impedance fault detection logic as illustrated
in Figure 10.15.
.CFG File
The .CFG file contains data that are used to reconstruct the captured high-
impedance fault data during the event report (see Figure 10.16). A
<CR><LF> follows each line.
=>>SUM HIF <Enter>
FEEDER 1 Date: 08/03/2012 Time: 08:52:15.854
STATION A Time Source: external
Event Number = 10000
Event: HIF Fault HIF Phase: A,B
Downed Conductor: NO Freq: 59.99
Breaker: CLOSED
Pre-trigger (A):
IARMS IBRMS ICRMS
312.0 238.0 282.0
Post-trigger (A):
312.0 245.0 281.0
Pre-trigger (A):
SDIA SDIB SDIC
236.5 203.5 211.5
Post-trigger (A):
247.0 217.0 224.0
CTR,"1000.0"
HIFLER,"2"
=>>
Figure 10.15 Sample HIF COMTRADE .HDR Header File
<RID>, <FID>, 1999
##,##A,##D
Total Channels,
Analog, Digital
Figure 10.16 Sample HIF COMTRADE .CFG Configuration File Data