Description of Operation
GARD 8000 Distance Relay
RFL Electronics Inc.
Figure 9-57. Thermal time constant
There is a setting that enables the GARD 8000 to memorize the temperature calculated in case of
powering off the relay. If this setting is enabled, the thermal image algorithm’s start temperature will
be the memorized value.
The thermal image settings are located on the web page for “Misc. Current Elements.”
Figure 9-58. Thermal image characteristic time curves
August 1, 2009
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973.334.3100
