Toshiba GR200 Series Instruction Manual page 278

Busbar 1
Busbar 2
I a,b,c I a,b,c
VT configuration for four-zones protection
(iii)
Figure 4.2-10 shows the 20CH arrangement using the VCT21B and the VCT23B, which can
operate for four zones protection.
Busbar 1
V a,b,c
Busbar 2
V a,b,c
I a,b,c
I a,b,c
Figure 4.2-9 Busbar protection
CH17
CH19
I a,b,c
Figure 4.2-10 Busbar protection
- 264 -
I a,b,c I a,b,c
CH18
CH20
I a,b,c
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)
6F2S1931 (0.20)
V a,b,c
V a,b,c
V a,b,c
V a,b,c