Appendix B -Settings and Signals
MENU TEXT COL ROW DEFAULT SETTING AVAILABLE OPTIONS
DESCRIPTION
Setting for the tripping characteristic for the second stage earth fault overcurrent element.
IN>2 Direction 38 37 Non-Directional
Directional Fwd
Directional Rev
This setting determines the direction of measurement for first stage element.
IN>2 Current Set 38 3A 0.2
From 0.08*I1 to 4.0*I1 in steps of 0.01*I1
[Courier Number (current)]
Pick-up setting for second stage overcurrent element
IN2>1 IDG Is 38 3B 1.5
From 1 to 4 in steps of 0.1
[Courier Number (decimal)]
This setting is set as a multiple of “IN>” setting for the IDG curve (Scandinavian) and determines the actual relay current threshold at which
the element starts.
IN>2 Time Delay 38 3D 1
From 0 to 200 in steps of 0.01
[Courier Number (time-seconds)]
Setting for the time-delay for the definite time setting if selected for second stage element. The setting is available only when DT function is
selected.
IN>2 TMS 38 3E 1
From 0.025 to 1.2 in steps of 0.005
[Courier Number (decimal)]
Setting for the time multiplier setting to adjust the operating time of the IEC IDMT characteristic.
IN>2 Time Dial 38 3F 1
From 0.01 to 100 in steps of 0.01
[Courier Number (decimal)]
Setting for the time multiplier setting to adjust the operating time of the IEEE/US IDMT curves. The Time Dial (TD) is a multiplier on the
standard curve equation, in order to achieve the required tripping time. The reference curve is based on TD = 1.
Care: Certain manufacturer's use a mid-range value of TD = 5 or 7, so it may be necessary to divide by 5 or 7 to achieve parity.
IN2>1 IDG Time 38 41 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.
IN>2 Reset Char 38 43 DT
Inverse
Setting to determine the type of reset/release characteristic of the IEEE/US curves.
IN>2 tRESET 38 44 0
From 0 to 100 in steps of 0.01
[Courier Number (time-seconds)]
Setting that determines the reset/release time for definite time reset characteristic.
IN>3 Status 38 46 Disabled
Enabled
Enabled VTS
Enabled Ch Fail
En VTSorCh Fail
En VTSandCh Fail
Setting that defines third stage overcurrent operating status. Depending of this setting, IN>3 will be enabled permanently or in case of
Voltage Transformer Supervision (fuse fail) operation, or in case of communication channel fail, or a combination (and /or) of both.
IN>3 Direction 38 47 Directional Fwd
Directional Fwd
Directional Rev
[Indexed String]
This setting determines the direction of measurement for the earth fault overcurrent element.
IN>3 Current Set 38 4A 10
From 0.08*I1 to 32*I1 in steps of 0.01*I1
[Courier Number (current)]
Pick-up setting for third stage earth fault overcurrent element.
IN>3 Time Delay 38 4B 0
From 0 to 200 in steps of 0.01
[Courier Number (time-seconds)]
Setting for the operating time-delay for third stage earth fault overcurrent element.
IN>4 Status 38 4D Disabled
Enabled
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