Installation Manual User guide
Chapter 2 Installation
14
Shorting
K
-
+
L
K
+
-
L
I
-
-
I
-
-
I
-
-
+
-
1
23
+
-
+
-
Switches
03
-
05005
PT
+
-
+
-
++
--
MEASUREMENT
4N
INPUT VOLTAGE
V
1
V
J9
1
V
3
V
2
32
VV
N
4
5
4
6
LINE 2
LINE 3
LINE 1
(A)
SW1
(B)
(C)
96
JDR1
COM1
RS-232
5 1
1
RS-422/485
IRIG-B
J7
4
-Tx
J3
2
+Rx
1
+Tx
3
32
5
-Rx
4
5 6
12V
GND
-
+
RDM
SUPPLY
MAIN POWER
GROUND
MEASURE
VDC
BACKUP
POWER SUPPLIES
MAIN
-
+
N/-
2
125/220V DC
J10
DC
+
1
N/-
L/+
-
SW2
3 4
L/+
5
6
OR 120/230V AC
125/220V DC
8
1
RS-485
ETHERNET
RS-422/485
MODEM
JP3
1
4
J1
COM2
7 8
+Rx
+Tx
12 4
-Rx
3
-Tx
5
1
J2
COM3
3
P. S U P PL Y
4
RDM
5 3 2
4
USB
J11
2
3
2
4
1
6
5
7
1
J5
8
LOAD
-
+
-
5
-
I
-
+
-
-
7
I
+
K
+
K
-
L
-
L
INPUTS
SA330 20A
CURRENT
SA330 150A
INPUTS
CURRENT
RELAY
C
Ts
METER CTs
J14
J12
Figure 2-6a
SA330: Three Wire Open Delta Connection Using 2 PTs, 2 CTs (2-element)
Wiring Mode = 3OP2