Toshiba GR 200 Series, Instruction Manual

Page: 92 / 1563

6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 71 -
The Z1S element generates a trip signal for the trip function (TRC) immediately when
the instantaneous mode is selected using the scheme switch [
Z1CNT_INSTOP
]. Note that the
scheme switch [
LES_EN
] can be used to block the Z1S element. The scheme switches [
Z1S-
PSBBLK
] and [
Z1G-PSBBLK
] can be used to block CB tripping when a power swing occurs in
the system. The scheme switch [
Z1S-MSDET
] is also used to cancel the operation condition,
which we have discussed with regard to the selection of the operation of ZS effected by the
occurrences of multi-phase fault or earth-fault. (see section 2.1.3(ii)-3).
The ZS elements generate trip signals if
On
is set for all of the scheme switches termed
“EN” with zone names [
Z*S-EN
]. The user should set
Off
for scheme switch [
Z*S-EN
] to disable
for issuing the trip signals. Using PLC signal ‘Z*S_ARCBLOCK’, the Z*S elements can issue
‘ARC-BLOCK’ signals for the ARC function via the TRC function; we shall see it later in
Chapter
Relay application: Autoreclose
.
To TRC
To DISCAR
≥1
Z1S-OPT
Z1XS-OPT
Z2S-OPT
Z3S-OPT
Z4S-OPT
Z5S-OPT
Z1S-OPT-AB
Z1S-OPT-BC
Z1S-OPT-CA
ZS-OPT-ABR
ZS-OPT-BCR
ZS-OPT-CAR
≥1
ZS-OPT-TRIP
From Z1S to Z5S logics
Z1S-ARC-BLOCK
Z1XS-ARC-BLOCK
Z2S-ARC-BLOCK
Z3S-ARC-BLOCK
Z4S-ARC-BLOCK
Z5S-ARC-BLOCK
≥1
ZS-ARC-BLOCK
Z1XS-OPT-AB
Z1XS-OPT-BC
Z1XS-OPT-CA
Z2S-OPT-AB
Z2S-OPT-BC
Z2S-OPT-CA
Z3S-OPT-AB
Z3S-OPT-BC
Z3S-OPT-CA
Z4S-OPT-AB
Z4S-OPT-BC
Z4S-OPT-CA
Z5S-OPT-AB
Z5S-OPT-BC
Z5S-OPT-CA
≥1
≥1
8C00001B62
8D00001B63
8E00001B64
8500001B61
8300001B23
Figure 2.1-43 ZS grouping logic for TRC/Recording functions