GEK-113308
MIWII Directional Power Protection System
8-5
8 KEYPAD AND DISPLAY
8.4 OPERATIONS
8
8.4OPERATIONS
8.4.1 ONE KEY OPERATION AND LAST TRIP DATA
From the main screen, pressing Enter key the display shows a
one-key operation menu
that presents measures and up
to
five latest trip element
data with the element that has tripped, the phase, the current and the voltage value (not
affected by CT ratio), with the day, month and time of the trip.
When a fault occurs, trip information is automatically shown in the display. Pressing ENTER key, main screen will be
shown again. In order to perform a RESET operation, display must be in main screen showing phase and ground
currents, in this situation, pressing ESC/RESET key for more than 3 seconds a RESET operation will be performed.
1. Day - month
Main screen
Ia 0.000
VI 0.000
Enter
P 0.000
Q 0.000
S 0.000
A 0
Enter
VII
0.000
VIII 0.000
Enter
Last Trip Unit
Enter
1
st
LTU
03-03
1
11:23:02
1 32-1 A 2.19
Enter
2
nd
LTU
28-02 05:41:30
2 32-1 A 1.21
Enter
3
rd
LTU
01-01 00:00:00
3 ---- - ----
Enter
4
th
LTU
01-01 00:00:00
4 ---- - ----
Enter
5
th
LTU
01-01 00:00:00
5 ---- - ----