Toshiba GR200 Series Instruction Manual page 445

CB#1
Relay
(G)
Bus VT
VCHK1 (G)
ARC1
(G)
Busbar G
[ARC1-MODE]= FT / SPAR / TPAR / SPAR&TPAR
[ARC2-MODE]= Off
a.1CB arrangement system (CB#1)
Busbar G
CB#1
Relay
ARC1
Reclosing CB#1
CB#1
Relay
ARC1
Reclosing CB#1
Reclosing modes in 1CB and 1.5CB
(ii)
Single-phase auto reclose (Setting [ARC1-MODE]=SPAR)
A faulted phase is tripped by relay applications if a single-phase earth fault occurs; then the
ARC function tries to recloses the CB. In the case that the phase-to-phase (or multi-phases)
fault occurs, the CB is tripped forcibly in three-phases by the instruction of the ARC function
regardless of the fault detection of relay application; the ARC function does not try to reclose
the CB. For the SPAR mode, reclosing the CB is performed without the synchronism check and
voltage check .
Three-phase auto reclose (Setting [ARC1-MODE]=TPAR)
Line
Line VT
Reclosing CB#1
Line GR
(G)
Reclosing assisted by
the communication
(G)
Line HS
(H)
(H)
[ARC1-MODE]= MPAR
[MPAR-MODE]= M2/M3
c. Parallel lines (CB#1)
Figure 2.34-1 Breaker systems
- 422 -
Bus VT
CB#1
VCHK1 (G)
Line VT
VCHK2
(G)
CB#2
Line VT
[ARC1-MODE]= FT / SPAR / TPAR / SPAR&TPAR
[ARC2-MODE]= FT / SPAR / TPAR / SPAR&TPAR
b. 1.5 CB arrangement (CB#1 and CB#2)
CB#1
Relay (R)
ARC1
(R)
Reclosing CB#1
CB#1
Relay
(S)
ARC1
(S)
Reclosing CB#1
[ARC2-MODE]= Off
6F2S1914 (0.49)
Busbar G
Reclosing for CB#1
ARC1 (G)
ARC2
(G)
Line1
Reclosing for CB#2
Line2
Busbar R
GRL200 (Soft 033 & 037)