Toshiba GR200 Series Instruction Manual page 167

DEF-REVBLK
DEFCAR-OPT-A
DEFCAR-OPT-B
DEFCAR-OPT-C
800000EB55 DEFCAR_F.BLOCK
810000EB56 DEFCAR_PERMIT
DEFCAR
BOP
Coordination with DISCAR protection
2.4.4
The DEFCAR function, as rule, is used together with the distance carrier command protection
(DISCAR†); hence, the user is required to establish the coordination between the DEFCAR
function and the DISCAR function so that both can operate without interference. The
followings exemplify how to establish the coordination using the DEFCAR settings sand
signals.
†Note: For more information of the DISCAR, see chapter
carrier command protection
DISCAR and DEFCAR signals being separated
(i)
When the DISCAR signal and the DEFCAR signal are used separately, the user should set 0
for the [TDEFCF]. Consequently, the DEFCAR function can trip in TDEFC after the reception
of the DEFCAR signal. Figure 2.4-11 shows the relationship of sending-signal, receiving-signal,
and tripping in the DEFCAR function.
Sending DEFCAR signal
Receiving DEFCAR signal
DEFCAR issuing a trip signal
Figure 2.4-11 Sending signal and receiving signal in DEFCAR
Note: It is recommend prolonging DEFCAR signal.
DISCAR and DEFCAR signals being shared
(ii)
When the DISCAR signal and the DEFCAR signal are used as a shared signal, the user should
set should set 0 for the [TDEFC]. Consequently, the DEFCAR function can issue a trip signal
&
&
1
&
&
1
&
&
1
TSBCT-DEF
t 0
t 0
t 0
Figure 2.4-10 Sending circuit of BOP
.
DEFCAR pickup
- 146 -
8000001B79
8100001B7A
8200001B7B
≥1
≥1
&
&
1
Relay application: Distance
BO Off delay
[TDEFCF]=0ms
Communication delay
[TDEFC]
6F2S1915 (0.46)
INT.DEFCAR-S-A
INT.DEFCAR-S-B
INT.DEFCAR-S-C
used for the
integral carrier communication
8F00001B7C
DEFCAR-S
used for the
external carrier communication
GRZ200 (Soft 031 & 032)