In the “Configuration” window the user can specify parameters of the distance relays. For this purpose, short circuit results can be also depicted.
On the right side of the window:
“View settings” button: opens short circuit vectors selection window, the dialog is shown in. In the dialog, user can choose, which of the vectors should be displayed.
System mode: select short circuit system mode.
K2, K11, K1: selection checkboxes for which resistance measurement loops to show for each asymmetrical short circuit type.
A-B: Phase A to Phase B
B-C: Phase B to Phase C
C-A: Phase C to Phase A
A-G: Phase A to ground
B-G: Phase B to ground
C-G: Phase C to ground
“Max Z to show” field: short circuit vectors above specified value will not be shown, a notification will popup if the vector is higher.
“Buses” pane: list of all buses in the system. Each list cell is bordered and contains five checkboxes. The top-left checkbox shows impedance vectors from breaker unit bus to the selected list bus. K3, K2, K1 and K1,1 checkboxes show appropriate short circuit impedance vectors from breaker unit bus to the selected list bus. Each short-circuit vectors are colored as follows: K3 – red; K2 – green; K1 – blue; K1,1 – yellow;
On the left side of the window, the user can configure distance protection settings:
1) “IED” drop-down menu: select which type of distance protection to use.
2) “Blinder” box: click to expand load blinder settings, a load blinder can be enabled or disabled, specific settings vary based on distance protection type.
3) “Zone” dropdown: select zone to edit, if the zone has a ground current compensation factor it is set to the factor of the selected zone for drawing short circuit vectors.
4) “Direction” drop-down menu: select zone direction from Forward, Reverse and Non-directional.
5) “Enable” checkbox: Enable or disable currently selected zone.
6) “Time delay” field: Set time delay for selected zone.
7) Other fields are distance protection type specific and are defined by the manufacturer.
