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V: 1.0 Revised: Jan. 2018
Chapter 2: Installation
19
Figure 2-10c 3LN using 333mV, mA and Rogowski Coil CTs
2) Three Phase: 3 wire-connection (Three phase without a neutral)
The wiring mode is set to 2LL. Two CT's needed for this connection.
Note: Output of the CT is 5A/1A and mA.
With Potential Transformers (PTs) - PTs are required if the system voltage is higher than
690V LL. Instead of connecting the voltage lines directly to the meter, the voltage lines are
connected to the meter using PTs. The PTs should be connected as shown below.
Note:
Only two PTs are needed for this connection
A B C N
LINE
1A FUSE
I11
I12
I21
I22
I31
I32
V
N
V3
V2
V1
AcuRev 1310
LOAD
Terminal Block
1
2
3
4
5
6
10
9
8
7
Terminal Block
A B C
LINE
1A FUSE
I11
I12
I21
I22
I31
I32
I41
I42
V
N
V3
V2 V1
AcuRev 1310
LOAD
Figure 2-11a 2LL wiring diagram using 5A/1A CTs and PTs