Toshiba GR200 Series Instruction Manual page 416

Screen of FL output
2.32.4
Although the IED screen is shown separately in Chapter
of the fault determination is discussed here because the screen of fault determination is unique
compared with others. Thus, we brief the IED screen of the fault determination, as shown in
Figure 2.32-7.
****
FL
****
Figure 2.32-7 IED screen of FL calculation in the kilometer and percentage
Fault determination in kilometer or mile
(i)
The fault location is referred as a fault determination (fault distance), and the fault
determination is displayed in kilometer, as shown in Figure 2.32-8 (shaded portion a). If the
information of the line length includes an error, the screen is displayed with "—" (dash sign)
and the calculation dose not start. The fault determination is not shown when the trigger is
not provided for the FL.
As shown in Figure 2.32-8, if the IED at local-terminal runs along with other IEDs, the
IED at local-terminal displays the distance value from the local IED to the fault point.
Line GJ
t
Distance GA
TT
Bus G
t
Junction J
TT
Local
t
Fault A
Local IED G
TT
t
t
(1). Fault arises on line GJ
Figure 2.32-8 Fault determination when three IEDs are applied
The fault determination (fault distance) is displayed in mile or kilometer. To display the
fault distance in mile, user should change the setting, which is discussed later. (See
a. Fault determination in the kilometer
*
. km
%
c. Fault determination in percentage
Bus H
Sec.1
t
Remote IED H
t
Remote IED S
t
Bus S
- 393 -
Recording function
b. Section info for fault
Sec. 1
OB / NC /CF
d. Detailed info
Line GJ+JH
t
Distance GB
TT
Bus G
Junction J
t
TT
Local
t
Local IED G
t
(2) Fault arises on line JH
6F2S1914 (0.49)
, the IED screen
Bus H
Sec.1
t
Fault B Remote IED H
TT
t
t
Remote IED H
t
Bus S
GRL200 (Soft 033 & 037)