70
LIN-JF
KHA3000 Input Terminal
Delta transformation (star-delta transformation)
The delta transformation feature is used to convert phase voltage measurements of three-
phase four-wire circuits to line voltages. Therefore, even if the actual circuit is wired using a
three-phase four-wire system, line voltage measurement of a three-phase three-wire system
is possible. The following figure shows a three-phase three-wire circuit and three-phase four-
wire circuit used to test a three-phase three-wire EUT.
You can set the delta transformation from the wiring system menu. For details, see the
KHA3000 operation manual.
A
V
A
V
A
V
U
V
W
G
G
U
V
V
W
G
L1
L2
L3
±
V
±
V
±
SOURCE
LOAD
KHA3000
Three-phase three-wire EUT
Three-phase three-wire EUT
Three-phase three-wire circuit
Three-phase four-wire circuit
A
V
A
V
A
V
U
V
W
N
N
G
G
U
V
V
W
G
L1
L2
L3
±
V
±
V
±
SOURCE
LOAD
KHA3000
Содержание LIN Series
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