Installation Manual User guide

Chapter 2 Installation
18
K
-
+
L
K
+
-
L
K
+
-
L
I
-
-
I
-
-
I
-
-
I
-
-
+ -
1
234
+ - + - + -
SW1
03
-
0500
4
PT
+
+
+
- -
+
- -
Switches
Shorting
LINE 1
LINE 3
LINE 2
(B)
(C)
(A)
LOAD
6
4
5
2
3
1
J9
6
5
43
1 2
GROUND
MAIN POWER
SUPPLY
125/220V DC
V
4
3
V
1
2
V
N
VV
MEASUREMENT
DC
4N
V
125/220V DC
OR 120/230V AC
L/+
SW2
L/+
+
-
N/-
+
-
N/-
MAIN
POWER SUPPLIES
BACKUP
V
DC
MEASURE
GND
12V
RS-422/485
INPUT VOLTAGE
IRIG-B
RS-422/485
J7
MODEM
J10
JP3
P.SUPPLY
4
1
COM3
J2
5
RDM
34
RS-485
3
+
4
-
2 1
RDM
8
+Rx
J1
21
+Tx
6
3
J11
534
-Rx
-Tx
1
2
USB
2 1
4 5
ETHERNET
1
7 8
J5
RS-232
COM1
JDR1
5
3
+Tx
1
J3
21
-Tx
312
+Rx
45
-Rx
4 5
COM2
6 7 8
6 9
+
K
L
K
+
-
+
K
-
L
L
-
INPUTS
SA330 20A
CURRENT
6
-
I
-
-
5
+
-
I
-
-
+
-
-
I
+
7
-
SA330 150A
INPUTS
CURRENT
RELAY
C
Ts
METER CT
s
J14
J12
Figure 2-8a
SA330: Three Wire Open Delta Connection Using 2 PTs, 3 CTs (2
½-element)
Wiring Mode = 3OP3