11
5.2 Descriptions of Wiring
This chapter illustrates how wiring is done for this panel.
■
Measured Voltage:
When measured voltage is higher than the rated specification (refer to Electrical Specification) for the
device, use of an external potential transformer should be considered.
■
Measured Current:
When measured current is higher than the rated specification (refer to Electrical Specification) for the
device, use of an external current transformer should be considered.
■
Supported Methods of Wiring:
A N
I1+
I1-
I2+
I2-
I3+
I3-
V1
V2
V3
Vn
I1+
I1-
I2+
I2-
I3+
I3-
V1
V2
V3
Vn
A
N
B
Diagram 5-1: One-phase two-wire, 1 CT
Diagram 5-2: One-phase three-wire, 2 CT
I1+
I1-
I2+
I2-
I3+
I3-
V1
V2
V3
Vn
A
N
B
C
I1+
I1-
I2+
I2-
I3+
I3-
V1
V2
V3
Vn
A
N
B C
Diagram 5-3: Three-phase three-wire,
Δ
Delta-connection, 3 CT, No PT
Diagram 5-4: Three-phase three-wire,
Δ
Delta-connection, 2 CT, No PT
