GEK-113032A W650 Wind Generator Protection System 4-41
4 HUMAN INTERFACES. 4.2 HUMAN MACHINE INTERFACE (HMI)
4
4.2.5.3 SNAPSHOT EVENTS
To enter this menu press the shuttle key when the option Snapshot events is selected in main menu (). In this menu all the
snapshot events stored can be displayed.
Snapshot events are changes in the relay internal status.
One snapshot event is displayed in two text screens:
The first screen display the status, date and time of the snapshot event: the snapshot event identifier, its status,
event number and the date and time of the occurrence. If the snapshot event identifier does not fit the first line, the
whole text will be shown using as well the second line alternating with the status and event number.
The second screen displays currents and voltages in primary values for that particular snapshot event. Ia, Ib, Ic
and Ig for currents and Vab, Vbc, Vca and V0 for voltages. To access the metering screen in snapshot events
menu, press shuttle key from the snapshot event first screen. To exit from the metering screen pres ESC.
To select different snapshot events to be displayed, rotate the shuttle key to select the snapshot event and then press the
shuttle key to enter the metering screen. Press esc to exit the metering screen and return to snapshot events menu.
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