Bo1; Bo2; Bo3; Bo4 - Toshiba GR-200 Series Instruction Manual

Typical external connection diagram for 1/3 case size
VCT3A, IO: MV-BI1, MV-BO1 plus RS485 and IRIG-B
Busbar
Phase A
Phase B
Phase C
CB
CT
Secondary
Core balance
CT
(*1) Above figure is an example.
Bus VT
to Vs
VC
1
2
3
4
5
6
7
8
VT
Secondary 9
10
11
12
13
VT
Tertiary
14
15
16
17
from Bus VT
18
Various CT and VT
T1
connections are applicable.
(+) 1
(-) 2
(+) 3
(-) 4
(+) 5
(+) 6
(+) 7
(+) 8
(+) 9
(+) 10
(+) 11
(+) 12
(+) 13
(+) 14
(+) 15
(+) 16
(+) 17
(-) 18
T2
FG
17
GND
18
(+) 19
DC supply
DC/DC
(-) 20
E (Case earth)
T2
I (Ia)

BO1

L1
I (Ib) IO#1

BO2

L2
I (Ic)

BO3

L3
Ie

BO4

V (Vab)

BO5

L1
V (Vbc)

BO6

L2
V (Vca)

BO7

L3
Ve

BO8

T1
Vs
IO#1
Fail
BI1
IO#1
BI2
BI3
BI4
BI5
C1
BI6
BI7 100BASE-TX
1000BASE-T
BI8
BI9 C2
BI10
100BASE-TX
1000BASE-T
BI11
BI12
C3
BI13
IRIG-B000
BI14
SIG
BI15
DISUSE
DISUSE
GND
USB
- 943 -
6F2T0200 (0.15)
1
CB trip
2
(*2)
command
3
(*2)Recommend to
4 assign by the
programmable BO
5
6
7
8
9
10
11
12
13
14
15
16
19
Relay fail
20
LAN
communication
A3
Clock signal
B3
A2
B2
A1
B1
Engineering
tools
GRE200 (1,2)