55
Energy Meter Installation
12.8 DTSU666, CHINT (Three-phase)
1
Energy Meter Wiring
L1
L2
L3
N
2 5 8 10 1 3 4 6 7 9
1
4
7
3
6
9 10
Grid (Mains)
1
2
1
4
7
3
4
3
6
9 10
2 5 8
24 25
Energy Meter
CT direction
P2
Load
P1
Grid
S1
S2
CT for L1
S1
3
S2
1
CT for L2
S1
6
S2
4
CT for L3
S1
9
S2
7
Q.VOLT
Load
(Off-grid)
Grid
RS485_NEG RS485_POS
1 3
/
2 4
/
N L1 L2 L3
Utility Meter
(Optional) Secondary Energy Meter
N L1 L2 L3
Main CB
P1
P2
CT
P1
P2
CT
P1
P2
CT
P1
CT
Q.HOME CORE CB
PV INV
P2
P1
CT
P2
P1
CT
P2
PV CB
Load CB
Main Load
N
N
L1
L2
L3
Critical Load
Critical Load CB
24 25
2 5 8