Setting Familiarisation - GE P741 Technical Manual

P74x/EN CM/Na7
(CM) 10-4
2.

SETTING FAMILIARISATION

When commissioning a P74x Busbar protection for the first time, sufficient time should be
allowed to become familiar with the method by which the settings are applied.
The Introduction (P74x/EN IT) contains a detailed description of the menu structure of P74x
relays.
With the secondary front cover in place all keys except the  key are accessible. All menu
cells can be read. LED's and alarms can be reset. However, no protection or configuration
settings can be changed, or fault and event records cleared.
Removing the secondary front cover allows access to all keys so that settings can be
changed, LED's and alarms reset, and fault and event records cleared. However, menu cells
those have access levels higher than the default level will require the appropriate password
to be entered before changes can be made.
Alternatively, if a portable PC is available together with suitable setting software (such as
S1), the menu can be viewed a page at a time to display a full column of data and text. This
PC software also allows settings to be entered more easily, saved to a file on a digital
medium for future reference or printed to produce a setting record. Refer to the PC software
user manual for details. If the software is being used for the first time, allow sufficient time to
become familiar with its operation.
CM
Commissioning
MiCOM P741, P742, P743