The protection relay records relay status data and events.
Document all the recorded data from the protection relay before
resetting the tripping and relay lockout functions.
5.3
Relay parametrization
Protection relay parameters are set via the LHMI, WHMI or PCM600.
Setting parameters need to be calculated according to the electrical network
conditions and the electrical characteristics of the protected equipment. The
protection relay's settings need to be verified before the protection relay is connected
to a system.
Document all changes to parameter settings.
For more information, see the PCM600 documentation.
Do not switch off the auxiliary power supply to the protection relay
before changes, for example, setting parameter or local/remote
control state changes are saved.
A mechanism for limiting the number of writings per time period is included in the
protection relay to prevent the flash memory from wearing out due to too many
writings caused by the application configuration. As a consequence, saving
application function states may take up to an hour. If the auxiliary power is interrupted
before the states are saved, that change is lost. Settings and configuration parameters
are saved without delay.
5.3.1
Settings for relay functionality
Function settings can be edited one by one by navigating to the individual setting
values, for example via the LHMI. The values in other setting groups should be known
before editing a certain setting value.
After completing the editing of setting group values, the new values are activated. The
user can either commit the edited values or discard them.
1MRS756509 E
Section 5
IED operation
630 series
63
Operation Manual
