Alstom MiCOM P846, Техническое руководство

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Getting Started P846/EN GS/D
MiCOM P846 (GS) 3-3
1. GETTING STARTED
1.1 User interfaces and menu structure
The settings and functions of the MiCOM protection relay can be accessed both from the
front panel keypad and LCD, and via the front and rear communication ports. Information on
each of these methods is given in this section to describe how to start using the relay.
1.2 Introduction to the relay
1.2.1 Front panel
The front panel of the relay is shown in Figure 1, with the hinged covers at the top and
bottom of the relay shown open. Extra physical protection for the front panel can be
provided by an optional transparent front cover. With the cover in place read only access to
the user interface is possible. Removal of the cover does not compromise the environmental
withstand capability of the product, but allows access to the relay settings. When full access
to the relay keypad is required, for editing the settings, the transparent cover can be
unclipped and removed when the top and bottom covers are open. If the lower cover is
secured with a wire seal, this will need to be removed. Using the side flanges of the
transparent cover, pull the bottom edge away from the relay front panel until it is clear of the
seal tab. The cover can then be moved vertically down to release the two fixing lugs from
their recesses in the front panel.
GS
User programable
function LEDs
TRIP
ALARM
OUT OF SERVICE
HEALTHY
= CLEAR
= READ
= ENTER
SER No
DIAG No
I
n
V
x
V
n
V
V
1/5 A 50/60 Hz
Serial No and
I
*, V Ratings
Top cover
Fixed
function
LEDs
Bottom
cover
Battery compartment Front comms port Download/monitor port
Keypad
LCD
P0103ENb
Hotkeys
Figure 1: Relay front view
The front panel of the relay includes the following, as indicated in Figure 1:
−
a 16-character by 3-line alphanumeric liquid crystal display (LCD).
−
a 9-key keypad comprising 4 arrow keys
( , ,
and ), an enter key
( ), a clear key ( ), a read key (
c
) and 2 additional hot keys ( )