Installation and Commissioning
GARD 8000 SYS RFL Electronics
November 28, 2017 4-63 973.334.3100
4.6.4.13 CURRENT DIFF RELAY FUNCTIONAL TESTING
If the Comms channel of the GARD8000 Current Diff Relay is looped-back the functional testing
is limited to the simulation of the Internal Faults. To simulate the External Faults configure the
GARD units (Current Diff Relays) in back-to-back configuration.
During the functional testing the Current Diff Relay SOE records, Current Diff
Oscillography, Current Diff Last Trip, and GARD8000 System SOE records can be retrieved
for an evaluation.
To retrieve the Current Diff Relay SOE’s click on the “Home” page, click on “Current Diff
Relay” and then select “Current Diff Sequence of Events”.
To retrieve the Current Diff Relay Oscillography records click on “Current Diff Relay” from
the “Home” page, select “Oscillography. Select one of the time stamped Oscillography records
stored in the Current Diff Relay. All Oscillography (COMTRADE) type records are saved in a
form of zip files which consists of two files: data and config. After a download is completed,
and the saved file is un-zipped, the config file can be opened with ‘COMTRADE’ compatible
software.
RFL can provide free of charge a copy of COMTRADE compatible software. Please contact
RFL Customer Service at 973-334-3100 or by e-mail: sales@rflelect.com.
To retrieve the Current Diff Relay ‘Last Trip’ click on the “Home” page, click on “Current Diff
Relay” and then select “Last Trip”.
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