Toshiba GR200 Series - 2.32.4 Screen of FL output; (i) Fault determination in kilometer or mile

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 393 -
2.32.4 Screen of FL output
Although the IED screen is shown separately in Chapter Recording function , the IED screen
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.
Figure 2.32-7 IED screen of FL calculation in the kilometer and percentage
(i) Fault determination in kilometer or mile
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.
Fault A
TT
t
Local IED G
t
Junction J
TT
t
Distance GA
TT
t
Line GJ
t
Local
Bus G
Sec.1
t
Bus H
Remote IED H
t
Sec.2
Bus S
(1). Fault arises on line GJ
Remote IED S
t
Fault B
TT
t
Local IED G
t
Junction J
TT
t
Distance GB
TT
t
Line GJ+JH
t
Local
Bus G
Sec.1
t
Bus H
Remote IED H
t
Sec.2
Bus S
(2) Fault arises on line JH
Remote IED H
t
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
b. Section info for fault
d. Detailed info
c. Fault determination in percentage
FL
****
.
*
km Sec. 1
****
% OB / NC /CF