Toshiba GR200 Series Instruction Manual page 351

Figure 2.23-5 shows logic for the FL calculation. In this logic, starting signals from the
respective protection functions are provided for the FL. Note that the operation resultants of
respective functions are used to start the FL calculation. The operation resultants are not the
same as the operation signals of the protection elements, as in Figure 2.23-4.
Z1S DIR
Z1S
Z1XS DIR
Z1XS
Z2S DIR
Z2S
Z3S DIR
Z3S
Result signal of ZS elements
Z1G DIR
Z1G
Z1XG DIR
Z1XG
Z2G DIR
Z2G
Z3G DIR
Z3G
Result signal of ZG elements
OC1-Dir
OC1
OC2-Dir
OC2
Result signal of OC elements
ZC
Result signal of ZCS and ZCG elements
DIFL
RDIF
DIFG
RDIFG
Result signal of DIF elements
310022EC60 FLZ_RecF
310022EC64 FLAZ_RecF
310022EC61 FLZ_RecF
310022EC65 FLAZ_RecR
PLC signals
Figure 2.23-5 FL calculation start (fault locator initiated)
Above-mentioned recording and starting calculation can be also started by the DATA IDs
above: FL_RecF", "FL_RecR", "FL_LocF", and "FL_LocR.
)
FL calculation start
Forward
Reverse
Forward
Reverse
Forward
Reverse
Forward
Reverse
Forward
Reverse
Forward
Reverse
Forward
Reverse
Forward
Reverse
Forward
Reverse
Forward
Reverse
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
Forward
Reverse
≥1
- 330 -
6F2S1915 (0.46)
Forward
&
≥1
Reverse
&
Forward
FL-DIR
Reverse
GRZ200 (Soft 031 & 032)
FL calculation
started by the
result signals
of respective
functions.
FL calculation
started by the
result signals
of respective
functions.