Appendix B - Settings and Signals
MENU TEXT COL ROW DEFAULT SETTING AVAILABLE OPTIONS
DESCRIPTION
Directional Rev
This setting determines the direction of measurement for the first stage sensitive earth fault element.
ISEF>1 Current 3A 2E 0.05
From 0.005*I3 to 0.1*I3 in steps of 0.00025*I3
[Courier Number (current)]
Pick-up setting for the first stage sensitive earth fault element.
ISEF>1 IDG Is 3A 2F 1.5
From 1 to 4 in steps of 0.1
[Courier Number (decimal)]
This setting is set as a multiple of ISEF> setting for the IDG curve (Scandinavian) and determines the actual IED current threshold at which the
element starts.
ISEF>1 Delay 3A 31 1
From 0 to 200 in steps of 0.01
[Courier Number (time-seconds)]
Setting for the time delay for the first stage definite time element.
ISEF>1 TMS 3A 32 1
From 0.025 to 1.2 in steps of 0.005
[Courier Number (decimal)]
Setting for the time multiplier to adjust the operating time of the IEC IDMT characteristic.
ISEF>1 Time Dial 3A 33 1
From 0.01 to 100 in steps of 0.01
[Courier Number (decimal)]
Setting for the time multiplier to adjust the operating time of the IEEE/US IDMT curves.
ISEF>1 IDG Time 3A 34 1.2
From 1 to 2 in steps of 0.01
[Courier Number (time-seconds)]
Setting for the IDG curve used to set the minimum operating time at high levels of fault current.
ISEF>1 Reset Chr 3A 36 DT
Inverse
Setting to determine the type of reset/release characteristic of the IEEE/US curves.
ISEF>1 tRESET 3A 37 0
From 0 to 100 in steps of 0.01
[Courier Number (time-seconds)]
Setting to determine the reset/release time for definite time reset characteristic.
ISEF>2 Function 3A 3A Disabled
DT
IEC S Inverse
IEC V Inverse
IEC E Inverse
UK LT Inverse
IEEE M Inverse
IEEE V Inverse
IEEE E Inverse
US Inverse
US ST Inverse
IDG
Default Curve 1
Default Curve 2
Default Curve 3
Default Curve 4
Setting for the tripping characteristic for the second stage sensitive earth fault element.
ISEF>2 Direction 3A 3B Non-Directional
Directional Fwd
Directional Rev
This setting determines the direction of measurement for the second stage sensitive earth fault element.
ISEF>2 Current 3A 3E 0.05
From 0.005*I3 to 0.1*I3 in steps of 0.00025*I3
[Courier Number (current)]
Pick-up setting for the second stage sensitive earth fault element.
ISEF>2 IDG Is 3A 3F 1.5
From 1 to 4 in steps of 0.1
[Courier Number (decimal)]
This setting is set as a multiple of ISEF> setting for the IDG curve (Scandinavian) and determines the actual IED current threshold at which the
element starts.
From 0 to 200 in steps of 0.01
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