AZT-9
24
ZPrAE Sp. z o.o.
The “Save events to file” button on the toolbar in the main program window enables
saving of last events received and shown in a table of events to a file with a default name
described above, and clearing the table of events. When closing the program all unsaved
events are saved to a file with a default name in a relevant folder.
5.5. Change of AZT-9 setups.
To change the settings of the AZT-9 protection device select SETTINGS button
once the connection with the device is established. Upon selection of this option a window
indicating operating condition of the AZT-9 protection DEVICE pops-up, as shown in fig.
5.4.
In the first tab the user can check the device status i.e. status of LEDs, indicators
and present current measurements. On the left side of the window there are 8 configurable
LEDs. Their colour and signal source can be assigned by the user. On the right there is a
general signalling with 2 LEDs assigned to FAILURE and SUPPLY signal. Indicators with
magnetic storage are shown below. User can assign any signal to the indicator but it is
recommended to use them to indicate operation.
Fig. 5.4. General settings window.
In the middle of the window there are phase current measurements with additional
analogue indicators. Below there are also additional measurements:
-
I
e
– measured earth-fault current,
-
I
2 –
calculated negative sequence current,
-
I
2
/I
1
– negative sequence current to positive sequence current ratio.
