82
6
F
2
S
0
8
5
0
Setting
The settings necessary for the directional earth fault protection are as follows:
Element Range
Step Default Remarks
DEFF
Forward looking DEF
DEFFI
0.5 - 5.0 A
0.1 A
1.0 A
Residual current
(0.10 - 1.00 A
0.01 A
0.2 A) (*)
DEFFV
1.7 – 21.0 V
0.1 V
2.0 V
Residual voltage
TDEF
0.0 – 10.0 s
0.1 s
0.0 s
Definite time setting
DEFR
Reverse looking DEF
DEFRI
0.5 - 5.0 A
0.1 A
1.0 A
Residual current
(0.10 - 1.00 A
0.01 A
0.2 A) (*)
DEFRV
1.7 – 21.0 V
0.1 V
2.0 V
Residual voltage
TDER
0.0 – 10.0 s
0.1 s
0.0 s
Definite time setting
DEF
θ
0 - 90°
1°
85°
Characteristic angle
DEFFEN
OFF/ON
OFF
Forward DEF backup trip enable
DEFREN
OFF/ON
OFF
Reverse DEF backup trip enable
EFIBT
OFF/NOD/F/R
NOD
EFI directional control
(*) Current values shown in the parentheses are in the case of 1 A rating. Other current values are in
the case of 5 A rating.
The DEF element is shared with the command protection.
The EFIBT is the scheme switch for directional control selection and if NOD is selected, the
inverse time overcurrent protection executes non-directional operation. If F or R is selected, it
executes forward operation or reverse operation in combination with the DEFF or DEFR. If OFF
is selected, the inverse time overcurrent protection is blocked.
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Summary of Contents for GRL100-701B
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