Alstom MiCOM P50 Agile P15D - Page 166

9 External Battery Backup
P50 Agile P15D
9-4
P15D/EN TM/B
2 FRONT PANEL EXTERNAL BATTERY BACKUP
A non-chargeable external battery backup is provided to view parameters whenever there is loss of
source power supply. Press the “BAT ON” key to view the relay parameters on the LCD.
The battery is located in the battery box on the front panel and can be easily replaced by opening the
cover. The unit uses three AA size batteries with capacity of 1.5 V each.
Battery box
BAT ON
Figure 1: Battery ON key
Figure 2: Battery box
Caution Risk of fire if batteries are replaced with incorrect type or polarity.